^"W

NBS TECHNICAL NOTE 760

Description of the

Magnetic Tape Version of

the Bulletin of Thermodynamics

and Thermochemistry, No. 14 (1971)

U.S. )EPARTMENT

OF

COMMERCE

National

Bureau

of Standards
NATIONAL BUREAU OF STANDARDS

The National Bureau of Standards1 was established by an act of Congress March 3, 1901. The Bureau's overall goal is to strengthen and advance the Nation's science and

technology and facilitate their effective application for public benefit. To this end, the Bureau conducts research and provides: (1) a basis for the Nation's physical measure- ment system, (2) scientific and technological services for industry and government, (3) a technical basis for equity in trade, and (4) technical services to promote public safety. The Bureau consists of the Institute for Basic Standards, the Institute for Materials Research, the Institute for Applied Technology, the Center for Computer Sciences and

Technology, and the Office for Information Programs. THE INSTITUTE FOR BASIC STANDARDS provides the central basis within the United States of a complete and consistent system of physical measurement; coordinates

that system with measurement systems of other nations; and furnishes essential services leading to accurate and uniform physical measurements throughout the Nation's scientific community, industry, and commerce. The Institute consists of a Center for Radiation Research, an Office of Measurement Services and the following divisions: Applied Mathematics — Electricity — Mechanics — Heat — Optical Physics —

Linac Radiation - — Nuclear Radiation - — Applied Radiation - — Quantum

Electronics • — Electromagnetics ' — Time and Frequency 3 — Laboratory

Astrophysics ' — Cryogenics 3

. THE nsSTITUTE FOR MATERIALS RESEARCH conducts materials research lead- ing to improved methods of measurement, standards, and data on the properties of

well-characterized materials needed by industry, commerce, educational institutions, and

Government; provides advisory and research services to other Government agencies; and develops, produces, and distributes standard reference materials. The Institute consists of the Office of Standard Reference Materials and the following divisions: Analytical Chemistry—Polymers—Metallurgy—Inorganic Materials—Reactor

Radiation—Physical Chemistry. THE INSTITUTE FOR APPLIED TECHNOLOGY provides technical services to pro- mote the use of available technology and to facilitate technological innovation in industry and Government; cooperates with public and private organizations leading to the development of technological standards (including mandatory safety standards), codes and methods of test; and provides technical advice and services to Government agencies upon request. The Institute also monitors NBS engineering standards activities and

provides liaison between NBS and national and international engineering standards

bodies. The Institute consists of a Center for Building Technology and the following

divisions and offices: Engineering and Product Standards—Weights and Measures—Invention and

Innovation—Product Evaluation Technology—Electronic Technology—Technical Analysis—Measurement Engineering—Building Standards and Code Services4—Housing Technology4 —Federal Building Technology4—Structures, Materials and Life Safety4—Building Environment4—Technical Evaluation and

Application 4 —Fire Technology. THE EVSTITUTE FOR COMPUTER SCffiNCES AND TECHNOLOGY conducts re- search and provides technical services designed to aid Government agencies in improving cost effectiveness in the conduct of their programs through the selection, acquisition, and effective utilization of automatic data processing equipment; and serves as the principal focus within the executive branch for the development of Federal standards for automatic data processing equipment, techniques, and computer languages. The Center

consists of the following offices and divisions: Information Processing Standards—Computer Information—Computer Services —Systems Development—Information Processing Technology. THE OFFICE FOR INFORMATION PROGRAMS promotes optimum dissemination and accessibility of scientific information generated within NBS and other agencies of

the Federal Government; promotes the development of the National Standard Reference Data System and a system of information analysis centers dealing with the broader

aspects of the National Measurement System; provides appropriate services to ensure

that the NBS staff has optimum accessibility to the scientific information of the world, and directs the public information activities of the Bureau. The Office consists of the following organizational units: Office of Standard Reference Data—Office of Technical Information and

Publications—Library—Office of International Relations.

Headquarters and Laboratories at Galthersburg, Maryland, unless otherwise noted; mailing address Washington, D.C. 20234.

2 Part of the Center for Radiation Research.

3 Located at Boulder, Colorado 80302.

• Part of the Center for Building Technology.
Description of the Magnetic Tape Version

of the Bulletin of Thermodynamics and

Thermochemistry, No. 14 (1971]

Robert McClenon

Office of Standard Reference Data

National Bureau of Standards Washington, D.C. 20234

William H. Evans and David Garvin

Physical Chemistry Division

Institute for Materials Research

National Bureau of Standards Washington, D.C. 20234

and

Blanton C. Duncan

Computer Services Division

Institute for Computer Sciences and Technology

National Bureau of Standards Washington, D.C. 20234

*°*eM of

*"

U.S. DEPARTMENT OF COMMERCE, Frederick B. Dent, Secretary

NATIONAL BUREAU OF STANDARDS, Richard W. Roberts, Director

Issued March 1973
National Bureau of Standards Technical Note 760

Nat. Bur. Stand. (U.S.), Tech. Note 760, 51 pages (Mar. 1973) CODEN: NBTNAE

For sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C., 20402.

Price $0.75 domestic postpaid or $0.50 G.P.O. Bookstore.
CONTENTS

1. Introduction 1

2

.

General Summary of the Work 3 3. Description of an Entry 5 4. Sequence of Files and Structure 10

5. Technical Description of the Record 12

Appendices

A. Codes for Properties Used on B.T. and T. Tapes 18

B. Glossary of Symbols for the Substance-Property

Index 19

C. Codes for States Used on B.T. and T. Tapes 21

D. Organic Compound Main and Group Classes

E. Finding Number Sequence for the Elements

Used on B.T. and T. Tapes 31

F. Flags (Used on B.T. and T. Tapes) 33

G. Display of Data Recording ("Dump") 34

Til

Description of the

Magnetic Tape Version of the

Bulletin of Thermodynamics and

Thermochemistry, No. 14 (1971)

Robert C. McClenon, William H. Evans

David Carvin and Blanton C. Duncan

Abstract

The substance-property index and bibliography sections of the

Bulletin of Thermodynamics and Thermochemistry, No. 14 (May 1971)

have been converted to a magnetic tape version designed for

computerized searching written in an extended form of the American

National Standard Code for Information Interchange (X 3.4-1968).

In this version each substance-property entry has been supplemented

by a searching key. This report describes the magnetic tape version.

Key words: Bibliography; chemical thermodynamics; extended character

codes; information retrieval; magnetic tape.

1. Introduction

The Bulletin of Thermodynamics and Thermochemistry (B. T. and T.) is

an annual publication prepared under the auspices of the Commission of Thermodynamics and Thermochemistry of the Division of Physical Chemistry of the

International Union of Pure and Applied Chemistry. It is edited by Professor

Edgar F. Westrum, Jr., University of Michigan, Ann Arbor, Michigan.
The Bulletin contains (a) abstracts of work in progress during a

calendar year, (b) a substance-property index to these abstracts and

to papers published during the same period, and, (c) a bibliography to

which the index is keyed.

The final stages of preparing the substance-property index and the

bibliography are carried out at the National Bureau of Standards by the

Chemical Thermodynamics Data Group, Physical Chemistry Division, Institute

for Materials Research. At this stage the entire contents of the index

and bibliography are stored on magnetic tape and are manipulated using

the General Purpose Scientific Document Code System.

The tapes for Bulletin of Thermodynamics and Thermochemistry, No. 14

(May 1971), covering 1970, have been used to prepare a machine-readable

record that can be used in computerized information retrieval systems.

This report explains the structure of the records, the chemical symbolism

used and the technical characteristics of the machine record. It should

be a sufficient starting point for the transcription of the record at a

computer center and use of the material by chemists.
2. General Summary of the Work

Chemistry requires a complex symbolism, even for a compound-oriented

index. Figure 1, a page from the Bulletin shows this. There are upper

and lower case letters, subscripts and superscripts and occasional Greek,

letters. Underscoring is used to indicate type-face changes.

All of these features are present on the machine-readable record.

The index sections of the record are line-by-line copies of each column

in the index supplemented by a searching key that summarizes the entry

in a rigidly prescribed manner (See Section 3). The bibliography sections

of the record are line-by-line copies of the bibliography in the Bulletin.

The substance-property index in the Bulletin is in three parts:

organic substances, organic mixtures and inorganic substances. The

machine record also is in several parts corresponding to the division

in the Bulletin. This overall structure is described in Section 4.

The machine record is written in the American National Standard

Code for Information Interchange (ASCII-1968) which is a variant of the

International Standardization Organization Code (ISO/IS 646). In order

to obtain special features (subscripts, Greek etc.) the ASCII-1968 code

has been supplemented with an additional set of characters and several

specially defined escape code sequences. The technical details of the

machine record are described in Section 5.

The potential user of the tape will face two major tasks which are

not discussed further in this report. First, he must obtain a program

that will read and transcribe the ASCII records into a form usable on

his computer system. Second, he must develop or obtain a program that

can search the records.
The first task is one which should preferably be done by the computer

service center rather than by the individual user, since the result will

be a utility program applicable to any ISO or ASCII tape. The second

task may be either simple or complex. This depends upon whether a simple

character by character comparison of chemical formulae is to be used or

whether the detailed information in the searching key is to be used to

make the search more efficient.
3. Description of an Entry

Each of the index files in the Bulletin of Thermodynamics and

Thermochemistry is divided into basic logical groups of information

known as entries. Each entry contains a reference number, correlating

it to an entry in the corresponding bibliographic file, and additional

information intended to permit mechanized searching of the Bulletin .

The entry consists of:

(a) Two lines of coded information followed by one line per

compound in the entry.

(b) The text as printed in the Bulletin . This is often one

line, but may be several lines long.

A typical entry is shown in figure 2.

3.1 First Line :

The first character in the first line of an entry is an. ASCII Group

Separator. This denotes the start of an entry. Columns 2 through 6

contain a sequence number which is assigned to the entry by the program

generating the tape. The entry appearing first on the tape is assigned

the number 1; the second number is assigned the number 2; the thousandth

entry is assigned the number 1000, and so on. This number (like every

number in the first two lines of an entry) is right justified in its field:

the units digit is in column 6. In the example shown in figure 2,

the sequence number is 141.

Columns 8 and 9 (or, if the number is one digit, column 9 only) contain

the number of lines in the entry. In the example shown, there are five

lines, therefore this number is 5.
Column 11 contains the number of substances for which chemical formulas

are given, one per line. The maximum number of substances indexed in this

way is 3. If more than three substances are present in an alloy or a

mixture, only the first three are indexed, and the entry is permuted

"end-around" so that all substances are indexed. In the example shown,

two substances (water and hydrogen chloride) are indexed.

Column 13 contains the number of property codes for which the substance described has been indexed. The maximum value of this number is

3. The property codes are given in columns 14 and 15; columns 16 and 17;

and columns 18 and 19. The document described by the entry in figure 2

discusses two properties, having the codes 17 and 28. The zero in column

19 occurs because there is no third property. If more than three property

codes are present in the entry, only the three lowest are given. Appendices

A and B give the meanings of the property codes.

Note that there are two sets of property codes. One is for compounds

for which a formula is given. The other is for miscellaneous subjects.

The numerical values in the two sets overlap.

Columns 21 and 22 contain a numerical state code. Meanings of the

state codes are given in Appendix C. The 45 in figure 2 indicates a

liquid-gas transition.

Columns 24 through 27 give the class code for an organic compound.

Columns 28 through 30 give the subclass code. These are explained in

Appendix D. In figure 2 they are zeroes because the entry is from the

inorganic file. Values of 1023 for the class code and 255 for the subclass may also occur for inorganic entries.
Columns 32 through 34 contain a "finding number" for the substances

described on the first substance line. The finding number is based on

the standard order of arrangement of the elements (see NBS Technical

Note 270). It indicates the element in the first substance that occurs

last in the standard order. Appendix E lists the element to which each

finding number corresponds. For example, in figure 2, the substance listed

first is water. Since hydrogen follows oxygen in the standard order, the

finding number is that of hydrogen, which is 2. Certain entries may have

anomalously large finding numbers, such as 117. Such a number indicates

that the item was filed in the "General and Miscellaneous" section of the

index, e.g. starting at p. 252 of the Bulletin, number 14. The subheadings

in this section are the property codes for miscellaneous items.

Columns 41 through 48 contain the reference number. This specifies

the bibliographic entry to which this index entry refers. In the example

shown, the reference number is 5157-70. Note that this number appears

twice in each index entry.

This line is always present. It is 47 or 48 characters long, not

including control codes.

3.2 Second Line :

The second line contains numerical "flags" alerting a searcher to

special characteristics of an indexed substance. Column 1 contains the

number of flags for the first substance, column 2, for the second

substance, column 3, for the third substance. There may be from to

5 flags for a substance. Each flag consists of two digits. Since there

may be up to 15 flags, 30 columns are reserved for the flags (10 columns
for each substance). The flags for the first substance are in columns 4

through 13. Those for the second substance are in columns 14 through 23.

Those for the third substance are in columns 24 through 33. The information

in columns 1 through 3 indicates that there is a single flag for the

first substance. This flag, a 3, is found in column 5 (actually

columns 4 and 5). Appendix F makes it clear that this flag identifies

the first compound, water, as a component of a mixture, to be followed

by (at least) one more component. The flags 2, indicating a hydrate, 11,

indicating positive charge, and 12, indicating negative charge, are each

followed by a number which is not actually another flag but a count.

For a hydrate it is the number of molecules of water of hydration.

For an ion it represents the number of charges.

This line is always present; it may be 3 to 33 characters long,

not including control codes.

3.3 Formula Lines:

An empirical formula for each substance is part of each entry.

Each formula appears on a separate line. The example given in Figure 2

illustrates two significant features of the formula. First, the

elements in a formula are arranged in reverse standard order of

arrangement. Thus hydrogen chloride is written Cl.H . Second, a

subscript "1" follows the symbol for an element of which the compound

contains one atom. This permits the formula to be converted into a

6-bit code (e.g., BCD) in which no distinction is made between upper

and lower case, without ambiguity. The formula may be followed by a

slash, which indicates that it is one of the components of an alloy

or a system, in which case the next component is on the next line.

8
3.4 Text :

Following the substance lines, the text of the index as printed in

the Bulletin appears on the tape. One may note the correspondence

between the substance lines and the formula in the text; between the

state abbreviation following the formula in the text, and the state

code in columns 21 and 22 of the first line; and between the property

symbols beginning in column 31 of the first line of text, and the

property codes in columns 14 through 19.
4. Sequence of Files and Structure

The Bulletin tape consists of six files. The first record on the

tape is a standard volume header label as described in ANSI X3. 27-1969.

It is followed immediately by the file header labels for the first file.

Each file is preceded by two standard file header labels (followed by

a tape mark). The file itself is followed by a tape mark; and the file

and its tape mark are followed by a standard end-of-file label and a

tape mark. Two tape marks follow the final end-of-file label. This

structure is shown in figure 3.

The first file contains the substance-property index to the inorganic

section of the Bulletin . Its format is described in Chapter 3. The

second file contains the index for organic compounds. The third file

contains the index for organic mixtures. The maximum length of a line

in an index file is 48 characters.

The fourth through sixth files contain the bibliographic portion of

the Bulletin for the inorganic, organic compound, and organic mixture

sections respectively. * These files are images of the bibliographic parts

of the printed Bulletin . The first line of a bibliographic entry begins

in column 1 with a digit. Each continuation line of an entry begins in

column 4. The maximum length of a line is 110 characters. Note that

group separators do not precede entries in the bibliography.

The following table gives the number of 1008-character blocks and

of lines in each file. (A "line" consists of a line feed followed by at

*Note that the inorganic reference numbers start 3001, organic substances

at 0001 and organic mixtures at 1001.

10
least one graphic character and possibly other characters, followed

by a carriage return).

File // Blocks # Lines

1 1526 40470

2 347 8917

3 980 26301

4 493 5224

5 101 1097

6 249 2441

11
5. Technical Description of the Record

5.1 The tape is a standard 0.5 in. (1.27 cm) wide magnetic tape.

5.2 The recording is in 9 tracks at a density of 800 characters per inch

(^ 315 per cm). There are 1008 characters per physical record. Each

record is followed by an 0.6 in. (1.52 cm) record gap.

5.3 The information is recorded using the American National Standard

Code for Information Interchange, ASCII-1968, Document X 3.4-1968, with

certain extensions described in section 5.5, below. This is a 7 bit code.

The eighth bit available for recording information on a 9 track tape is

always zero. That means that the information itself has been recorded

without the parity bit usually included on pa*per tape records.

5.4 Standards , The recording has been prepared in conformance with the

pertinent standards. The American National Standard Code is a recognized

variant of the International Standard Code for Information Processing

Interchange, ISO/IS 646. Recipients not familiar with the developing

body of formal standards for information interchange will find it useful

to study some of the basic standards. Within the U.S.A. the essential

set of standards (one still in draft) is:

(1) X 3.4-1968, American National Standard Code for Information

Interchange (FIPS Publication 1)

(2) X 3.22-1967, American National Standard Recorded Magnetic

Tape for Information Interchange (800 CPI.NRZI) (FIPS Publication 3)

(3) X 3.26-1970, American National Standard Hollerith Punched

Card Code (FIPS Publication 14)

(4) X 3.27-1969, American National Standard Magnetic Tape Labels

for Information Interchange

(5) X3L2/1199, American National Standard Code Extension Techniques

for Use with the 7-Bit Coded Character Set of ASCII.

12
All these standards can be considered as derivatives of corresponding ISO standards. They may be obtained from the American National

Standards Institute. Recipients in other countries can expect to be

able to obtain copies of their own corresponding national standards from

their national standards agencies.

5.5 Special features on this tape . The tape is designated as being a

"GPDW03" tape (General Purpose Document Writer-03) . This means that we

have (a) defined the meaning of six Escape sequences and (b) defined an

alternative set of graphics to supplement the basic ASCII set.

(a) The escape sequences and their uses here are:

Sequence Meaning at a Teletypewriter Use in GPDW03

ESC 3^ Shift to Red Ribbon (alternative graphic set)

ESC 4_ Shift to Black Ribbon (basic graphic set)

ESC 1_ Reverse Line Feed (up one line)

ESC 8 Reverse One-half Line Feed (up 1/2 line)

ESC 2 Forward One-half Line Feed (down 1/2 line)

ESC % 3 Standard Designator for GPDW03 as a Code Requiring Special

Interpretation

The first five Escape sequences occur in the body of the text. ESC 3

and ESC A signal changes of graphic character sets. "Shift Out" (SO) is

not used on this tape to signal changes of graphic sets because it has

been assigned a specific meaning in some national standards. On the

other hand, Shift In (SI) does occur at the beginning of each page of text,

13
ESC 7, ESC 8 and ESC 9 are used to signal the motion of a printing

device to and from positions needed for superscripts and subscripts.

The final sequence, ESC % 3 appears at the start of each physical

record. It warns that the GPDW03 conventions are being used,

(b) The graphic character sets and their numerical codes are defined

in figure 4.

5.6 Examples of recordings . A computer programmer who must arrange to

read a magnetic tape that has been prepared outside his installation

needs a printed example of the record on the tape. This will be used

to check the performance of the hardware tape-reading facility when

reading the foreign tape. Appendix G contains such a printed record,

a "dump" of part of this tape. It is a representation in limited

symbolism, character by character, of several lines of text. The

actual numerical codes can be obtained by interpreting this dump using

figure 4.

It may also help the recipient who plans to transcribe this tape

to be aware of the following conventions:

(1) The text is broken into lines. A carriage return (CR)

line feed (LF) sequence signals the end of the line. This sequence

has several delete (DEL) codes in it.

(2) The only other use of carriage return is in a sequence at

the start of a page. A page start is indicated by form feed (FF) and

carriage return together with several (DEL) codes.

14
(3) Delete codes (DEL) have been inserted whenever it is

desirable to provide for a time delay during the mechanical motion

of a printing device.

(4) Lines of text may start in one physical record and end in

the next. Even in this case, the sequence ESC % 3 is placed at the

start of the second physical record.

(5) Line feed (LF) controls may occur within the recording for

a line of text. This can happen when movement from a superscript

level to a subscript level is required.

(6) Lines are always separated by at least one blank half-line

interval.

(7) Backspace (BSP) is used, often to achieve overstriking of

characters. Backspace does not carry the meaning "backspace and delete

the previous character."

(8) Shift In (SI) occurs regularly in the pagination sequence

(see 2, above). This is done in order to reestablish periodically a

standard default condition in case of error.

5.7. Discussion . Although the statements above are definitive, they

do not make it clear that we have exploited almost all of the features

of the ASCII (or ISO) code system in this recording. This subsection

attempts to explain the matter.

The record on the tape is a teletypewriter driver record, that

is, a sequence of control and graphic codes that could cause a

typewriter-like device that responds to ASCII to produce a clean

copy, line by line, of the information. The features that this

idealized teletypewriter (the target device) must have are described below.

15
(1) The target device is a character sequential page printer, i.e.

a "typewriter-like reference transducer." This assumption reflects an

attempt to invoke a broadly acceptable lowest common denominator for

data interchange and dissemination.

(2) The target printer can print only the 94 graphic characters

of ASCII, e.g. in the columns labeled "Std", figure 4.

(3) The target printer provides two color printing, e.g. black and

red, subject to being invoked under code control. Symbols printed in

red are to be interpreted as symbols from the alternative set of 94

graphic characters.

(4) The target printer provides forward and reverse half line feed

under code control. By this means all symbols are subject to being

placed in the positions of superscripts or overscores and subscripts

or underscores.

(5) The target printer provides backspace under code control so

that the effective graphic repertory includes composite sysmbols formed

by overs tr iking.

(6) The target printer provides separate "carriage return" and

"line feed" functions, i.e. carriage return implies no vertical motion.

In addition, the device provides a reverse line feed function under

code control. It may be noted that two-half line feed intervals are

taken to equal one line feed interval, exactly.

(7) The target printer provides a "form feed" or "page eject"

function under code control.

16
Teletypewriters with these capabilities are available as offthe-shelf items. One of them was used to keyboard the copy from which

figure 4 was printed.

Typewriter-like devices with more limited characteristics can still

produce interpretable, but slightly less readable records from GPDW03

tapes. In addition, such a tape can be "dumped" on a line printer. Such

a dump is shown in Appendix G.

17
Appendix A

Codes for Properties used on BT of T tapes

Property Class Tape Code Property Class Tape Code

none (blank) 8 30

1 8c 31

1 3 8h 33

2 A 8s 35

2p 7

2q 9 9 37

9c 41

3 10 9r 39

3d 11

3e 13

3k 15

3s 17

k 19

4e 21

4f 19 (=4)

5 23

6 25

7 26

7c 27

7g 28

7t 29

18
Appendix B TABLE x. GLOSSARY OF SYMBOLS FOR THE SUBSTANCE -PROPERTY INDEX

Description of Properties

Calorimetric heats of reaction

Calorimetric heats of solution, mixing and dilution

Phase change equilibria

Physical properties for pure substances, melting

point, transition temperature, boiling point,

vapor pressure, and derived data

Calorimetric heats and entropies of transition,

fusion and vaporization

Equilibrium data and derived properties

Dissociation pressures

Electrochemical data

Equilibrium constants

Solubilities, vapor pressures of solutions, activities,

and related data

Thermodynamic functions from molecular properties

, Molecular and spectroscopic data

,j- Thermodynamic functions of gases

Physical properties of single phases. Density,

refractive index, and viscosity

Spectroscopic studies of molecular bonding

P-V-T data

7 Effect of pressure on condensed phases: compressibility, Mollier diagrams

Effect of pressure on gases, PVT data, critical

Property Symbol

Category Subgroup

1

2 2 P

2q

3 3d

3e

3k

3s

7g

7t

8c

8h

state, Joule-Thomson coefficient

Tables and charts

Calorimetric enthalpy : Low temperature heat capacity and enthalpy

High temperature heat content (enthalpy) and capacity

o" Third Law entropy

q Reviews and compilations : „ Correlation reviews

9c

q Reviews and compilations

Papers on apparatus, theoretical topics, etc., are contained in the section

headed Miscellaneous (below)

Physical States: (c)rystal, solid (aq)ueous

(amorp)hous (nonaq)ueous, includes fused salts

(liq)uid (ads)orbed

(g)as (sol)ution

(gls) glass

19
MISCELLANEOUS PROPERTIES AND TECHNIQUES

Subject

1. Properties of real materials

2. Calorimetric apparatus - Reaction calorimetry

3. Calorimetric apparatus - Heat capacity and heat content

4. Solutions and solution theory

5. Properties of real fluids

6. Temperature measurement and scales

7. Pressure measurement and scales

8. Correlations, bond energies, and estimates

9. Thermodynamic theory

20
Appendix C

Codes for States used on BT and T Tapes

c 11

amorph 12 22

glass 13 23 33

liquid 14 24 34 44

gas 15 25 35 45 55

aq 16 26 36 46 56 66

soln 17 27 37 47 57 67 77

nonaq 18 28 38 48 58 68 78

adsorbed 19 29 39 49 59 69 79 89 99

Examples: 12 = c/amorph or amorph/c [process]

22 = amorph (single state) or amorph/amorph

00 = no state given

21
Appendix D National Bureau of Standards

Chemical Thermodynamics Data Group

Tentative List (1972) of

Organic Compound Main Classes

<5 atoms

5 atoms

6 atoms

>6 atoms

01 Organic (general, used vith subclasses)

02 Aliphatic

03 Alicyclic

04 Aromatic

05 Aliphatic-Alicyclic

06 Aliphatic-Aromatic

07 Alicyclic-Aromatic

08 Aliphatic-Alicyclic-Aromatic

09 Spiro

10 Terpene

11 Heterocyclic-Oxygen Compounds, Monocyclic Ring,

12 Heterocyclic-Oxygen Compounds, Monocyclic Ring,

13 Heterocyclic-Oxygen Compounds, Monocyclic Ring,

14 Heterocyclic-Oxygen Compounds, Monocyclic Ring,

15 Heterocyclic-Oxygen Compounds, Fused Ring <9 atoms

16 Heterocyclic-Oxygen Compounds, Fused Ring 9 atoms

17 Heterocyclic-Oxygen Compounds, Fused Ring 10 atoms

18 Heterocyclic-Oxygen Compounds, Fused Ring >10 atoms

19 Inter-Linked Heterocyclic-Oxygen Compounds

20 Heterocyclic-Sulfur Compounds, Monocyclic Ring,

21 Heterocyclic-Sulfur Compounds, Monocyclic Ring,

22 Heterocyclic-Sulfur Compounds, Monocyclic Ring,

23 Heterocyclic-Sulfur Compounds, Fused Ring

24 Inter-Linked Heterocyclic-Sulfur Compounds

25 Heterocyclic Sulfur-Oxygen Compounds, Monocyclic Ring

26 Heterocyclic S-0 Compounds, Fused Ring, S, in same ring

27 Heterocyclic S-0 Compounds, Fused Ring, S,0 in different ring

28 Heterocyclic S-0 Compounds, Non-Fused Ring,

29 Heterocyclic S-0 Compounds, Non-Fused Ring,

30 Heterocyclic Selenium Compounds

31 Heterocyclic Se-0 Compounds

<5 atoms

5 atoms

>5 atoms

S, in same ring

S,0 in different ring

32 Heterocyclic Tellurium Compounds

33 Heterocyclic Te-0 Compounds

34 Heterocyclic Nitrogen Compounds, Monocyclic Ring, <5 atoms

35 Heterocyclic Nitrogen Compounds, Monocyclic Ring, 5 atoms

36 Heterocyclic Nitrogen Compounds, Monocyclic Ring, 6 atoms

37 Heterocyclic Nitrogen Compounds, Monocyclic Ring, >6 atoms

38 Heterocyclic Nitrogen Compounds, Fused Ring, >9 atoms

39 Heterocyclic Nitrogen Compounds, Fused Ring, 9 atoms

40 Heterocyclic Nitrogen Compounds, Fused Ring, 10 atoms

22
a used only in Bull. Thermodynamics and Thermochem.

b merged with 3 for Bull T. T.

c merged with 4 for Bull T. T.

d merged with 11 for Bull T.. T.

e merged with 15 for Bull T. T.

f merged with 20 for Bull T. T. g merged with 34 for Bull T. T. h merged with 38 for Bull T. T.

h 41 Heterocyclic Nitrogen Compounds, Fused Ring, >10 atoms

42 Inter-Linked Heterocyclic Nitrogen Compounds

43 Heterocyclic N-0 Compounds, Fused Ring, N, in same ring

44 Heterocyclic N-0 Compounds, Fused Ring, N, in different ring

45 Heterocyclic N-0 Compounds, Non-Fused Ring, N, in same ring

46 Heterocyclic N-0 Compounds, Non-Fused Ring, N,0 in different ring

47 Inter-Linked Heterocyclic Nitrogen- Oxygen Compounds

48 Heterocyclic N-S Compounds, Fused Ring, N, S in same ring

49 Heterocyclic N-S Compounds, Fused Ring, N, S in different ring

50 Heterocyclic N-S Compounds, Non-Fused Ring, N, S in same ring

51 Heterocyclic N-S Compounds, Non-Fused Ring, N, S in different ring

52 Heterocyclic N-S-0 Compounds, Monocyclic Ring

53 Heterocyclic N-S-0 Compounds, Fused Ring

54 Heterocyclic Phosphorus Compounds

55 Heterocyclic Phosphorus -Oxygen Compounds

56 Heterocyclic P-S Compounds

57 Heterocyclic P-N Compounds

58 Heterocyclic P-O-S Compounds

59 Heterocyclic P-N-S Compounds

60 Heterocyclic P-N-0 Compounds

61 Heterocyclic P-N-O-S Compounds

62 Heterocyclic As Compounds

63 Heterocyclic As-0 Compounds

64 Heterocyclic Sb Compounds

65 Heterocyclic Sb-0 Compounds

66 Heterocyclic Bi Compounds

67 Heterocyclic Bi-0 Compounds

23
70 Dyes

71 Natural and Synthetic Rubber

72 Natural and Synthetic Plastics and Resins

73 Natural and Synthetic Fibers

74 Alkaloids

75 Vitamins and Vitamin Related Compounds

76 Steroids

77 Monosaccharides

78 Disaccharides and Other Oligosaccharides

79 Polysaccharides

80 Miscellaneous I 81 Miscellaneous II

82 Miscellaneous III

83 Miscellaneous IV

84 Miscellaneous V

85 Miscellaneous VI

99 General (unclassified)

24
National Bureau of Standards

Chemical Thermodynamics Data Group

Tentative List (1972) of

040

050

052

054

056

058

060

062

068

070

072

074

076

078

080

082

084

086

088

090

092

094

096

098

100

102

104

106

110

112

114

116

118

120

124

128

Note

Organic

Hydrocarbons (general)

Saturated Hydrocarbons

Saturated Hydrocarbons

Saturated Hydrocarbons

Saturated Hydrocarbons

Saturated Hydrocarbons

Saturated Hydrocarbons

Saturated Hydrocarbons

Compound Group Classes

(alkanes or cycloalkanes)

(Bicycloalkanes

(polycycloalkanes)

(alkyl subst. cycloalkanes <5

(alkyl subst. cycloalkanes 5 (alkyl subst. cycloalkanes 6 (alkyl subst. cycloalkanes >6

atoms)

atoms)

atoms)

atoms)

Miscellaneous Saturated Hydrocarbons

Unsaturated Hydrocarbons (alkenes or cycloalkenes)

Unsaturated Hydrocarbons (alkyl subst. cycloalkenes)

Unsaturated Hydrocarbons (bicycloalkenes)

Unsaturated Hydrocarbons (polycycloalkenes)

Unsaturated Hydrocarbons (dialkenes or cyclodialkenes)

Unsaturated Hydrocarbons (polyalkenes or cyclopolyalkenes)

Unsaturated Hydrocarbons (alkynes or cycloalkynes)

Unsaturated Hydrocarbons (dialkynes)

Unsaturated Hydrocarbons (polyalkynes)

Unsaturated Hydrocarbons (cyclo(alkene-alkynes))

Unsaturated Hydrocarbons (di (alkene-alkynes))

Unsaturated Hydrocarbons (poly(alkene-alkynes)

)

Miscellaneous Unsaturated Hydrocarbons

Inter-Linked (Catenated) alicyclic ring systems (saturated)- (chains)

Inter-Linked (Catenated) alicyclic ring systems (unsaturated)- (chains)

Inter-Linked (Catenated) alicyclic ring systems (miscellaneous)- (chains)

Intra-Linked alicyclic ring systems (saturated)

Intra-Linked alicyclic ring systems (unsaturated)

Intra-Linked alicyclic ring systems (miscellaneous)

Benzene, Naphthalene and Polynuclear Parent Hydrocarbons

Alkane substituted aromatic hydrocarbons

Alkene substituted aromatic hydrocarbons

Alkyne substituted aromatic hydrocarbons

Alicyclic substituted aromatic hydrocarbons

Catenated aromatic ring systems (chains)

Partially Hydrogenated aromatic hydrocarbons

Miscellaneous aromatic hydrocarbons

polyfunctional compounds are classed under the highest

applicable number.

25
130 Saturated primary alcohols*

132 Saturated secondary alcohols

134 Saturated tertiary alcohols

136 Saturated diols alcohols

138 Saturated polyols alcohols

140 Unsaturated alcohols

142 Phenolic Compounds

144 Miscellaneous alcohols

148 Saturated Ethers or Sulfides

150 Unsaturated Ethers or Sulfides

152 Hydroxy Ethers or Sulfides

158 Miscellaneous Ethers or Sulfides

162 Peroxides or Polysulfides

164 Ozonides

166 Hemiacetals

168 Acetals

170 Orthoesters

174 Saturated Aldehydes

176 Unsaturated Aldehydes

178 Miscellaneous Aldehydes

180 Saturated Ketones

182 Unsaturated Ketones

184 Quinones

186 Miscellaneous Ketones

190 Monobasic Saturated Acids

192 Monobasic Unsaturated Acids

194 Monobasic Hydroxy and Keto Acids

196 Polybasic Saturated Acids

198 Polybasic Unsaturated Acids

200 Polybasic Hydroxy and Keto Acids

202 Miscellaneous Acids

204 Carbonic Acid Derivatives

206 Peroxy Acids

208 Acid Anhydrides

210 Lactones

212 Lactides

215 Acid Halides

220 Saturated Methyl Esters

221 Unsaturated Methyl Esters

222 Hydroxy and Keto Methyl Esters

•'Note: Functional S, Se, Te is put in the same subclass as the

corresponding oxygen function throughout the scheme.

26
224 Saturated Ethyl Esters

225 Unsaturated Ethyl Esters

226 Hydroxy and Keto Ethyl Esters

228 Saturated Aliphatic Esters

229 Unsaturated Aliphatic Esters

230 Hydroxy and Keto Aliphatic Esters

232 Saturated Alicyclic Esters

233 Unsaturated Alicyclic Esters

234 Hydroxy and Keto Alicyclic Esters

236 Aromatic Esters

238 Miscellaneous Esters

240 Carbonates

242 Salts of Aliphatic Acids

243 Salts of Alicyclic Acids

244 Salts of Aromatic Acids

245 Miscellaneous Salts

250 Sulfoxides

258 Sulfones

266 Sulfinic Acids RS02H

268 Sulfonic Acids RSO3H

270 Sulfenyl Halides RSX

272 Sulfinyl Halides RSOX

274 Sulfonyl Halides RS02X

276 Thionic Acids RCSOH

278 Thiolic Acids RCOSH

280 Esters of Sulfenic Acids RS0R'

282 Esters of Sulfinic Acids RS02 R' 284 Esters of Sulfonic Acids RSO3R 1 286 Esters of Thionic Acids RCS0R 1 288 Esters of Thiolic Acids RCOSR 1 290 Esters of Sulfuric Acids RHSO4, R2 S04

992 Esters of Sulfurous Acids RHSO3 R2 S03

294 Miscellaneous C-H-S- Compounds

296 Miscellaneous C-H-S-0 Compounds

27
300 Primary Amines

302 Secondary Amines

304 Tertiary Amines

306 Quaternary Amines

308 Amine Salts

310 Diamines

312 Triamines

314 Tetraamines and Higher Amines

316 Amine-Acid Complexes (EDTA)

340 Miscellaneous Amines

342 Nitriles

344 Miscellaneous Nitriles

346 Carbylamines

348 Miscellaneous Carbylamines

350 Azides

352 Imines

354 Cyanamides

356 Amidines

358 Substituted Hydrazines or Hydrazo Compounds

360 Hydrazones

362 Guanidine and its Derivatives

364 Diazonium Compounds

366 Purine and its Derivatives

368 Quinoline and its Derivatives

370 Azo Compounds

380 Miscellaneous C-H-N Compounds

382 Amino Acids

384 Amino Acids Containing a Phenyl Group

386 Dipeptides

388 Tripeptides

390 Polypeptides

392 Proteins

394 Miscellaneous Amino Acids.

28
400 Amides

404 Miscellaneous Amides

410 Urea Derivatives

420 Miscellaneous Urea Derivatives

430 Nitro Compounds

432 Nitro Aldehydes

433 Nitro Alcohols

434 Nitro Ethers

436 Nitro Acids

438 Nitro Amides

440 Nitro Amines

442 Nitro Ketones

444 Nitro Esters

446 Nitro Phenols

448 Miscellaneous Nitro Compounds

450 Hydroxylamines

452 Aldoximes

454 Ketoximes

456 Imides

458 Lactams

460 Nitramines

462 Nitroso Compounds

464 Nitrosamines

466 Cyanates

468 Isocyanates

470 Nitrites RN02 472 Nitrates RN03 474 Semicarbaz ides

476 Osazones

478 Amine Oxides

482 Carbamates and Their Derivatives

490 Nitro Dyes

492 Nitroso Dyes

494 Azo Dyes

496 Triphenylme thane Dyes

498 Phthalein Dyes

500 Anthraquinone Dyes

502 Indigo Dyes

504 Sulfur Dyes

506 Auramine Dyes

508 Azine, Thiazine and Oxazine Dyes

510 Anthocyanins and Flavones

512 Phthalocyanine Dyes

514 Miscellaneous Dyes

29
520 Miscellaneous C-H-N-0 Compounds

530 Diaminosulf ides and Their Derivatives, H2N-S-NH2

532 Sulfenamides R-S-N-H2 534 Miscellaneous C-H-N-S Compounds

540 Sulfinamides RSONH,

542 Sulfonamides RS02NR

2 544 Sulfamide and its Derivatives H2N-S02 -NH2

546 Sulfamates RS03NH2 548 Aminosulfinates

550 Aminosulfonates

554 Nitrosulfonates

556 Amine Disulfinic Acids and Their Derivatives

558 Amine Trisulfinic Acids and Their Derivatives

560 Amine Disulfonic Acids and Their Derivatives

562 Amine Trisulfonic Acids and Their Derivatives

568 Miscellaneous C-H-N-0-S Compounds

580 Phosphines

582 Phosphine Oxides

590 Miscellaneous C-H-P Compounds

600 Substituted Phosphinic Acids R2 PO(OH)

602 Substituted Phosphonic Acids RP0(0H)

2 604 Phosphites

606 Phosphates

608 Esters of Phosphinic Acids

610 Esters of Phosphonic Acids

616 Miscellaneous C-H-P-0 Compounds

620 Miscellaneous C-H-P- S Compounds

630 Miscellaneous CHPN Compounds

640 Miscellaneous CHPS0 Compounds

650 Miscellaneous CHPNO Compounds

660 Miscellaneous CHPSN Compounds

670 Miscellaneous CHPOSN Compounds

700 Arsines

702 Arsenites

704 Arsenates

706 Miscellaneous CHAs Compounds

708 Miscellaneous CHAsO Compounds

30
710 Stibines

712 Stibnites

714 Stibnates

716 Miscellaneous CHSb Compounds

718 Miscellaneous CHSbO Compounds

720 Bismuthines

722 Bismuthates

724 Miscellaneous CHBi Compounds

726 Miscellaneous CHBiO Compounds

APPENDIX E

This sequence, in which the elements have the same order as in

the Standard Order of Arrangement (see NBS TN 270-3) , is used on

Bulletin Tapes. The numbers are different because deuterium and tritium

are assigned their own numbers, there is a generalized halogen (16)

and a generalized lanthanide (83) , and allowance has been made for

elements 105 and 106. A compound is filed (or appears on the tape)

under its constituent element having the highest finding number.

31
1 31 B 61 [106] 91 Am

2 H 32 Al 62 Ti 92 Pu

3 D 33 Ga 63 Zr 93 Np

4 T 34 In 64 Hf 94 U

5 He 35 Tl 65 Ku [104] 95 Pa

6 Ne 36 Zn 66 Sc 96 Th

7 Ar 37 Cd 67 Y 97 Ac

8 Kr 38 Hg 68 Lu 98 Be

9 Xe 39 Cu 69 Yb 99 Mg

10 Rn 40 Ag 70 Tm 100 Ca

11 F 41 Au 71 Er 101 Sr

12 CI 42 Ni 72 Ho 102 Ba

13 Br 43 Co 73 Dy 103 Ra

14 I 44 Fe 74 Tb 104 Li

15 At 45 Pd 75 Gd 105 Na

16 X (halogen) 46 Rh 76 Eu 106 K

17 S 47 Ru 77 Sm 107 Rb

18 Se 48 Pt 78 Pm 108 Cs

19 Te 49 Ir 79 Nd 109 Fr

20 Po 50 Os 80 Pr 110

21 N 51 Mn 81 Ce

22 P 52 Tc 82 La

23 As 53 Re 83 Ln (lanthanides)

24 Sb 54 Cr 84 No

25 Bi 55 Mo 85 Md

26 C 56 W 86 Fm

27 Si 57 [105] 87 Es 28 Ge 58 V 88 Cf

29 Sn 59 Nb 89 Bk

30 Pb 60 Ta 90 Cu

32
Appendix F

Flags

Codes used to indicate variable composition compounds, alloys,

mixtures, entities in equations, hydrates and ions.

These flags follow the number of atoms of the last element in

the compound, e.g. in words 7-12 for the first component. That a flag code is stored can be determined by examining the element

symbol storage field, e.g. words 1-6, where the corresponding region

is set to zero.

000 compound (normal)

001 compound is a hydrate. The next byte stores the no. of

molecules of water

002 compound occurs in a chemical equation

003 "dash" indicates a component of a mixture

3+

004 compound is of variable composition, e.g. Fe : Ci indicates the

group of compounds Fe Ci

005 "slash" indicates an alloy, e.g. Al/Sn

010 "*" excitation or activated state

011 "+" formal positive charge or oxidation state

the next byte stores the number of charges

012 "-" formal negative charge

the next byte stores the number of chargei

Note: When more than one flag appears, they are stored

in descending numberical order.

33
Appendix G

Display of Data Recording ("Dump")

The first few physical records from two of the files on the

Bulletin No. 14 (1971) tape are displayed here in a printer dump.

These show every character recorded, both controls and graphics.

The explanation of the conventions used in the dump follows the

examples.

Example 1. Header Labels - the first three physical records

on the tape.

Example 2. File if 1 - first two physical records. The

valid data start at the mark in the ninth line of Block 1. The

first valid entry corresponds to the first entry in figure lb -

Substance-property index.

Example 3. Header labels for File 4.

Example 4. File # 4 - first physical record. The data

correspond exactly to the start of figure la - Bibliography.

34
Example 1

(l. in «. a.

O *J »

4 o

35
Example 2

UJ i/» u

_j — u. if

Q U J Q UJ -J

UJ in o m •* a.

•• u. _l — u. Ct UI J a uj _i a ui -i a -j -j a UJ -I O uj _l Q ui -J a uij

S UJ _J O ui J

O .. (E o -* a:

ui in u

m ** a.

in « a.

in — a.

IT « 0. in •• q.

in .. D» a

m — 0.

p>* n—

tn — a.

f*i m •- a.

•o

in • a.

in — a.

ai

in » 0.

[A — o.

t/1 .. o- m — o>

ui — a. O « m

Xj -* u. * a UJ —1 a UJ _S o UJ _i a Ui -1 o UJ -J u — a:

in *• a.

in — a

in .. q.

in ** a.

in -« a. m •• a.

in .. Q. V) .. Q. <n »• a. •

o uj -i a uj -J O — 0=

u in u in •- a.

ui m u q ui a u j

Q UJ _l O UJ _1 o uj _j in — ft. m »• a. in -• a.

in •• a.

uj m w in « o_ in u in •• a.

-i u in u a Ui _i O Ui _1 U JO Ui «J o ui j O U J

Q U J

O -• CE

in — — IE _l — b.

O Ul _J O uj _i w — a:

36
in ** a. in

— cl

au j in --a _i « u. in

O UJ a uj o UJ

in •• a. _jo UJ _i a uj -i O UJ _

O UJ _) Q UJ J u •• or

•- u.

m

OUJ ay j ou J

O UJ- -I

W

O Ul _J O UJ -J O UJ -* in- « O UJ -J in • UJ in *• u • a. m • o in -

in •< - UJu.

in » o. o uj -i in • 0, -I • u.

.—

Q

O UJ _JQ UJ _l

••a. o uj _j

Ul .. Q. o m " CL o in •• D_ —J u. (A — 0. o UJ o tft ~ 0. o UJ _J f-i un .. q. a UJ -J » in ** a. o Ul _l o tn « o_ a UJ -1 l/l 0- in " CL

»-> or CL in -- a. in Q- z

t>

m £L in -* a.

in ^ C/l £L • UJ in 11

CL in -• a.

_j " U. in *" 0. tn « CL o Ul j in .. CL > a UJ _J i/i •• a. in -* a. o uj _J in n Ul J Ul — Q.

t-j orO

in .. £L

ci- in -• CL

Ul in u> in .. tL - z> in .. CL

O

U

J QU J O U

_j

— u. in

_im « a.

in— cl o uj _jm

a uj _i O UJ _J

i_» *- or

37
Example 3

Z 3 J Z 3 J

LA — (L.

t/> «. Q. — Q.

in " CU m ** a. U1 — Q.

ii — Q.

38
Example 4

o ui _» a ui o ui _i a ui a ui -i a ul

UI l/l u

UI un ^

1 IS

fi

in

UI in u

UI in w

k^ U

to

UI lA o

CD O

in

Ui lA Ul

Ul l/l Ul

a ui _j 3 ui _i Q Ul _J O Ul J

O Ul -J O Ul J

a ui j a ui j

o ui j Q U J

u •• a:

Ul in o

CD Ul l/l u

I

in •• in f> u in u

o- y Ul u

c*

3- ui in u

eo ui in u

i r

co •• in

*n ui in u

o>- ui in u

* o ui in u

• u. CO

E/1 •* a. ui in u

ui in u

t m — m

ui in u

_i — u. O Ul -I

ui in u

e© U UIU

t

CO — Ul

PI

ui in (j

o- 'ui mye> tn — o. in

in — a. in « a.

in u

CDin u

m u •

O U J

O uij a ui _i O UIJ

a ui _j w — cr

in .-• a. * o

m » a. • tt in — a. • rO* - m

ui in u • z

-j ** a ui a ui _i * a ui _j CO o Ul *o O Ui -j o- u -* (T —

• (E • Ui - a. - x:

in ** —

o u J

O Ul J

o -• a

O Ul -I — u in u

v CD

t_J o

o o

39
Explanation of the Dump

This character by character "dump" was prepared on a printer

that has a limited character repertory. This consists of space

and 60 of the characters in columns 2 through 4 of the ASCII table

plus two special graphics. One of these, Greek capital A, is used in the

dump to show double quotes, circumflex and underscore.

The dump has messages showing the number and size of each

physical block. Then the text of each block is shown, in groups

of ten characters. This is a "three level dump". ASCII controls

are indicated by their mnemonics written vertically:

E B D S S C

S S E : : : C PL P I R

Note that a colon is inserted in two letter mnemonics.

Letters, numerals and special characters are written in clear

text. A comma above an ASCII character means that it should be

read as the corresponding character from columns 6 and 7, e.g.

lowercase for letters. This usage and that for A is shown below

yA means a (used for all letters)

)A means " (quote)

*A means (circumflex) +A means underscore

A means ~ (tilde)

40
Each line is recorded from left to right in a three level line

(superscript, main line, and subscript). The lines are of variable

length and are closed by carriage returns.

Figure Captions

1. Samples of Printed Text of the Bulletin.

a. Bibliography. Top of page 320, Bull. Thermodyn.

Thermochem. 14 1971.

b. Substance-Property Index. Top of page 184, Bull.

Thermodyn. Thermochem. _14 1971.

2. Example of a Substance-Property Index Entry as it,

appears on the Bulletin Tapes. See Section 3 for an

explanation.

3. File Structure on the Bulletin Tapes, showing Labels (VOL

1, HDR 1, HDR 2, EOF 1, EOF 2), Tape marks (TM) and

positions of files. See Section 4 for explanation.

4. Character Set (ASCII plus an alternative graphic set)

used on GPDW03 tapes. The numerical value for a character

is an eight bit number based on the position of the

character in the table: value = 16 * Column + Row (Space,

2/0 = 32; N, 4/14 = 78). Printout from a teletypewriter

equipped with red-ribbon shift but not with the alternative

graphic set would show (in red) the corresponding character

from the standard set.

41
asp

OCT.

4-1 CM

4JCT*

l-IC^ •rl

0)

U

O c » to •hit

HOJl

i-i iflrU-l c c o . c t»-. »

r-l l» Tp-I

>.o 0"-|

4-»

C EiTI

T4-C S U 1 4Jm u

PI HI o»- 4-1 ja C=J 01 m

H(-

a -i

M 1 o

3<N s

ui ru

N

(0 01 v-r. J= o eu 4-" 10 En

Ul .. 0UJ — Oe, Em

4-jCT* c*- H

v£> 10^ ts Lio> V"

aii- Ul 1 f"' •HCM Ul

01 uir~

u

r- 4J r-lj o ui u „, T- myD

O.QJ o >J- uer- P-Ui c~ Q u

•H 3 B » <P

W

<-t+J Q> * • +JU-.I

H

H f0 +» 30J (0m| -Qt-

&-

U Onu HCTCD f-H Ul<- o • Um

rri CL. ffi QJ=t .CCS 3 1 c s U rH*- to ro -do

to QJ •H i ' 3 1 .J.-J OCT1

ni * •. urn cr- .. . C -h ^ . • ,.j^ to*- iTi .f a* * w U n > en u^ in-* >o ^cr|.ri

60 .j= 1 -e • (0 f-H

W Q) rH

*r> *f. r-<.OJ c .. JtO rH

U l-i , ** rdr- fl- ITJ-H CL QJ CD *(0 c cr. B C +J

U) OJ> 0-* act > If) CJ Q)

U

a) «~r. ui HU .c^ o o cr- o Ul a J- Cr-H c- W Ul -O QJ

o> ia <o tO *•ro td • >i

CD i >^-> c — ^CP

U

H ra Orsij_, Q) UQ\ 3«- u u 3 T r- 3 e Qjvd UcT HW 10 O

c= ^ .|JO"> U)3

O >» » »3 o

(0 QJ 1 T3u C? c o U O 1-+'*-' cm C C H CP (0 s

•Hrn rtJ

O 0) c 4-1 \-l • • . Ul »cn u^j- H E- rtJ Ul QJ

u • CD ffj MJ

U

C -r-i a. i . Ul T3 o E-* SO .4-> in oj O D CO) Ul

i-4 CT^-h Ul GO *<N| XI (0 l-l

M in %

0-. • e 3 en • w -l-i E — z o »+J

-c

O 0) *c +J

U cr • J -=?.*:-*-> +jr- *U1 E^ W *~Eh U C C (j O fO CD QH4-I QJ i o rjfliffi • H • -^ u c o *.£X OJ fc I u u TJ O U ttJ 1) ui e r- e

a. cr> io to 0) = f0J= N+J QJ QJ •H c CO.Vj= c ^:U M n3 •H+J 0) >, r-fO U t QJ * ff3 3 CJ 0) • H M U(0 J E OCQCMl tS]P=l fcj= On O r: * r-l n-, cr| "^ t •

OB l/l tiz 0' w-ri 01 c J= j= 1-4 4-1 OlSrf 3 •r-l CL

j= •u 4-1 01 o W 4J • X fl&i +J

OJ E3. •H

r-H CnH s 3 *

a. cj=

U (fl o 3 .r^s*; X ^Hnzl r4 o c 01 oil (d 4J U -H ». l~i Oc (0 O B . CL aj u B U1T3 B OlU • H u 0/ a> o

ai *>> o O • CL

j: o> id ^O D'

4-> >OM l-l OC 10 o 3

l-lu . 1+-I OJ

O

B

o-a cu

4-i <4-< d) Ifl

H l-l (U 42 • m

in no > U Ul (0 » 5-< 3D M 3 01 •iHr-i O -P 3 +JCC •OVG

ih n) . o 1 OJ

r-l UX Ul . "—

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W c 10V O'^

O.U1

O 10 Li 1 * &->, •H z. 3tN t «cCo 4-1 » Ulr- a (C U) a. ui (D«: . '. > • H 4-1 UU a •< N U . ti o.

>>

M 613 , ,.. a- ^J » CI ^ ro »o r>cr> C V) > 4-1 U vo H wQJ 4J CL CTtT^ > > ^ r-t 3 Or- 3 3 a . JC C 1-4 "—

>- +JP • r4=T UlO 1 E-< yi m -^•H •—

01

u er-i 04J s>-m •a u Oi c=j- n ul Curn C .SCO' Ul'- 03 r-l 1 (0 cr e 01 1 J3 flp- m^j 0) HjfM O E J=3 » ^- c-n M-ir- CO 4-im • rr 03 H mO • c

Z. i~ JZ .Q«e C(L fc l kCr. m ci wo in 1_ri| . fJ .-H CJ » iC H (N| C Ma£ «- ••• trifo =s.r4

=3*~)

— <- 10

«. -s: ,+j «- cr- . u i ».u

(TJ UD-lra | •so n-H OJ *.H

>i rJp.icr» to r- o c

«j •• «.W

h ^ , (j J^ ^- O T? *.•*-' HP *-: ». Q)

Ul 0>-^-H -£

C HO Ul^ > VO- 3 U tC^ 0J**-« ui o O CrH O1 ECO fX ••(!)£ U r- CU"-* ••n-.r- CL.W ^.CT'l-" if "^H ^^t+-t'" (0 QJ CT> CTQJ O QJ CT> O I JTrH vCtoE-*

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46 U. S. GOVERNMENT PRINTING OFFICE : 1973—511-324 (200)
FORM NBS-I14A (1-71) 2. Gov t Accession No.

U.S. DEPT. OF COMM. BIBLIOGRAPHIC DATA

SHEET

1. PUBLICATION OR REPORT NO. NBS-TN 7603. Recipient's Accession No.

4. TITLE AND SUBTITLE Description of the Magnetic Tape Version of the Bulletin of Thermodynamics

and Thermochemistry, No. 14 (1971)

5. Publication Date March 1973

6. Performing Organization Code

7. AUTHOR(S)

R. McClenon, W. H. Evans, D. Garvin, and B. C. Duncan

8. Performing Organization

10. Ptoject/Task/Work Unit No. 9. PERFORMING ORGANIZATION NAME AND ADDRESS NATIONAL BUREAU OF STANDARDS DEPARTMENT OF COMMERCE

WASHINGTON, D.C. 20234

11. Contract/Grant No.

12. Sponsoring Organization Name and Address

Same as above

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14. Sponsoring Agency Code

15. SUPPLEMENTARY NOTES

16. ABSTRACT (A 200-word or less factual summary of most significant information. If document includes a significant bibliography or literature survey, mention it here.)

The substance-property index and bibliography sections of the Bulletin of Thermodynamics and Thermochemistry, No. 14 (May 1971) have been converted to

a magnetic tape version designed for computerized searching written in an extended form of the American National Standard Code for Information

Interchange (X 3.4-1968). In this version each substance-property entry has been supplemented by a searching key. This report describes the magnetic

tape version.

17. KEY WORDS (Alphabetical order, separated by semicolons) Bibliography; chemical thermodynamics; extended character codes; information

retrieval; magnetic tape

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