BB-F-1421B

 March 5, 1982

 SUPERSEDING

 BB-F-1421A

 June 21, 1976

 FEDERAL SPECIFICATION

 FLUOROCARBON REFRIGERANTS 

 This specification was approved by the Commissioner, Federal Supply Service, 

General Services Administration, for the use of all Federal Agencies.

 1. SCOPE AND CLASSIFICATION

 1.1 Scope. This specification covers the requirements for fluorocarbon

refrigerants with collateral use as nonpolar beat transfer and electronics

isolation media. Fluorocarbon solvents are excluded from this specification.

 1.2 Classification. The fluorocarbon refrigerant shall be of the

following types, as specified (see 6.2):

 Type Chemical Name Formula

 11 Trichloromonofluoromethane CC1Ú3¿F

 12 Dichlorodifluoromethane CC1Ú2¿FÚ2¿

 13 Monochlorotrifluoromethane CC1FÚ3¿

 21 Dichloromonofluoromethane CHC1Ú2¿F

 22 Monochlorodifluoromethane CHC1FÚ2¿

 113 Trichlorotrifluoroethane CC1Ú2¿FCC1FÚ2¿

 114 Dichlorotetrafluoroethane CC1FÚ2¿CC1FÚ2¿

 116 Hexafluoroethane CFÚ3¿CFÚ3¿

 500 Dichlorodifluoromethane/ CC1Ú2¿FÚ2¿/CHÚ3¿CHFÚ2¿

 difluoroethane

 502 Monochlorodifluoromethane/

 Monochloropentafluoroethane CHC1FÚ2¿/CC1FÚ2¿CFÚ3¿

 503 Trifluoromethane/

 Monochlorotrifluoromethane CHFÚ3¿/CC1FÚ3¿

 2. APPLICABLE DOCUMENTS

 2.1 The following documents, of the issues in effect on date of invitation

for bids or request for proposal, form a part of this specification to the

extent specified herein:

 Federal Specifications:

 RR-C-910 - Cylinders, Compressed Gas: ICC 4BA, ICC 4BW, and ICC 4E.

 TT-L-32 - Lacquer, Cellulose Nitrate, Gloss for Aircraft Use.

 FSC 6830

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 PPP-B-601 - Boxes, Wood, Cleated-Plywood.

 PPP-B-621 - Boxes, Wood, Nailed and Lock Corner.

 PPP-B-636 - Boxes, Shipping, Fiberboard.

 Federal Standards:

 FED. STD. No. H28 - Screw-Thread Standards for Federal Service.

 FED. STD. No. 123 - Marking for Domestic Shipment (Civil Agencies).

 (Activities outside the Federal Government may obtain copies of Federal

Specifications, standards, and commercial item descriptions as outlined under

General Information in the Index of Federal Specifications and Standards and

Commercial Item Descriptions. The index which includes cumulative bimonthly

supplements as issued, is for sale on a subscription basis by the

Superintendent of Documents, U.S. Government Printing Office, Washington, DC

20402.)

 (Single copies of this specification and other Federal specifications and

commercial item descriptions required by activities outside the Federal

Government for bidding purposes are available without charge from General

Services Administration Business Service Centers in Boston, New York,

Washington, DC, Atlanta, Chicago, Kansas City, HO, Fort Worth, Houston,

Denver, San Francisco, Los Angeles, and Seattle, WA.)

 (Federal Government activities may obtain copies of Federal specifications,

standards, commercial item descriptions, and the Index of Federal 

Specifications, Standards and Commercial Item Descriptions from established

distribution points in their agencies.)

 Military Specifications:

 MIL-V-2 - Valves, Cylinder, Gas (For Compressed or Liquified Gases),

 General Specification.

 MIL-V2/22 - Value, Cylinder, Gas, Dichlorodifluoromethane

 Monochlorodifluoromethane, Dichlorotetraflouroethane, Methyl

 Chloride, Sulfur Dioxide Bromochloromethane, and

 Bromotriflouromethane Outlet 621.

 MIL-T-704 - Treatment and Painting of Materiel.

 Military Standards:

 MIL-STD-101 - Color Code for Pipelines and for Compressed Gas Cylinders.

 MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes.

 MIL-STD-129 - Marking for Shipment and Storage.

 MIL-STD-147 - Palletized and Containerized Unit Loads, 40 Inch by 48 Inch

 Pallets, Skids, Runners or Pallet Type Base.

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 MIL-STD-1186 - Cushioning, Anchoring, Bracing, Blocking, and Waterproofing; 

 With Appropriate Test Methods.

 MIL-STD-1411 - Inspection and Maintenance of Compressed Gas Cylinders.

 Publications:

 TM 88-250 - Preparation of Hazardous Materials

 (AFR 71-4, NAVSUP PUB 505, for Military Air Shipment.

 MCO P4030.19D, DSAM 4145.3)

 DEPARTMENT OF TRANSPORTATION (DOT)

 4.9 CFR 100-199 Code of Federal Regulations, Title 49-Transportation.

 Title 49 Code of Federal Regulations, Specification 39.

 Title 49 Code of Federal Regulations, Specification 17E.

 (The Code of Federal Regulations (CFR) and the Federal Register (FR), are

for sale on a subscription basis by the Superintendent of Documents, U.S.

Government Printing Office, Washington, DC 20204. When indicated, reprints

of certain regulations may be obtained from the Federal agency responsible

for issuance thereof.)

 (Copies of Military specifications, standards and publications required by

contractors in connection with specific procurement functions should be 

obtained from the procuring activity or as directed by the contracting 

officer.) 

 3. REQUIREMENTS

 3.1 Physical properties. Fluorocarbon refrigerants shall conform to table I.

 3.2 Containers and valves. Unless otherwise specified herein, the 

fluorocarbon refrigerants shall be contained in Government-furnished cylinders 

in accordance with CFR Title 49, 171-190, and equipped with valves in 

accordance with outlet connection No. 668 or 660 in accordance with 

FED-STD-H28. When specified (see 6.2), cylinders shall be furnished by the

contractor and shall be in accordance with RR-C-910 and shall be equipped

with valves in accordance with MIL-V-2. When specified (see 6.2), the

fluorocarbon refrigerants shall be contained in contractor-owned DOT-approved

containers with valves with outlet connection No. 668.

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 3.2.1 Disposable containers. When specified (see 5.2), the contractor

shall furnish disposable containers of the capacity as specified in

accordance with the CFR Title 49, Specification 39. The unit of pack for

disposable containers requires packaging in fiberboard boxes in accordance

with Specification 39 and marking (see 5.2) shall be in high visibility on

each unit of park. Drums 100-200 pounds conforming to Specification 17E

shall be used to contain type II and type 113 fluorocarbon refrigerants.

 3.3 Container maintenance. Government furnished containers that require

maintenance shall be processed by the contractor for serviceability to meet

the requirements of this specification and MIL-STD-1411.

 3.3.1 Container inspection and cleanup. Prior to filling the fluorocarbon

refrigerants, each container shall be inspected. The container interior

shall be clean and free of contaminants which could alter the properties of

the fluorocarbon refrigerants.

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 3.3.2 Treatment and painting. Government-furnished cylinders and

containers for fluorocarbon refrigerants requiring repainting shall have the

old paint, decals and rust removed. The metal surface shall be pretreated

and painted in accordance with MIL-T-704, type C finishing system. When a

contractor services all acceptable cylinders and containers, including paint

removal and refinishing, at no cost to the Government above the base price of

the fluorocarbon commodity, the practice of applying a one coat finishing

system by electrostatic or automatic spraying principles on a conveyor

process shall be acceptable. The paint shall be a fast drying lacquer in

accordance with TT-L-32 applied with quality equal to or better than that

practiced on the contractor's regular product line (see 6.4). When specified

for overseas or unprotected storage, military cylinders and containers for

fluorocarbon shall have the paint removed, the metal pretreated and painted

with a prime coat and a finish coat in accordance with MIL-T-704, type A

finishing system (see 6.2). Government-owned cylinders shall be color-coded

and marked in accordance with MIL-STD-101.

 3.4 Capacity. Unless otherwise specified (See 6.2), containers shall be

filled to the rated capacity. The weight of fluorocarbon refrigerant

supplied shall be the difference between the filled weight and the unfilled

tank weight of the container (see 6.3).

 3.5 Leakage. Containers and valves shall not leak after being filled.

 3.6 Caution markings. Each fluorocarbon refrigerant container shall be

marked to warn personnel to avoid the breathing of vapors. The decal or label 

shall be placed on the shoulder of the cylinder, but not over identification 

marking. Labels shall be placed away from outlets on drumheads. A 

contractor's decal warning against the breathing of vapors is acceptable.

 3.7 Leak detecting dye. When specified (see 6.2), a leak detecting dye

shall be added to the refrigerant. Each container having a leak detecting

dye shall be marked to indicate that the dye has been added and that the

refrigerant shall be charged in the liquid phase only. The dye shall be of a

type which shall not effect the performance of the refrigerant or the

refrigeration system.

 4. QUALITY ASSURANCE PROVISIONS

 4.1 Responsibility for inspection. Unless otherwise specified in the

contract, the contractor is responsible for the performance of all inspection

requirements specified herein. Except as otherwise specified in the contract, 

the contractor may use his own or any other facilities suitable for the 

performance of the inspection requirements specified herein, unless disapproved 

by the Government. The Government reserves the right to perform any of the 

inspections set forth in the specification where such inspections are deemed 

necessary to assure supplies and services conform to prescribed requirements.

 4.1.1 Component and material inspection. The contractor is responsible

for insuring that components and materials used are manufactured, examined,

and tested in accordance with referenced specifications and standards.

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 4.2 Classification of inspections. The inspection requirements specified

herein are classified as follows:

 (a) Quality conformance inspection (see 4.3).

 (b) Examination of preparation for delivery (see 4.5).

 4.3 Quality conformance inspection.

 4.3.1 Inspection lot. Cylinders or containers filled in a 24-hour period

from the same source and with the same type of fluorocarbon refrigerant shall

be considered a lot.

 4.3.2 Sampling. Sampling for tests shall be from filled cylinders or

containers and shall be in accordance with MIL-STD-105, Inspection level S-4.

 4.3.3 Examination. Samples selected in accordance with 4.3.2 shall be

examined for the following major defects. AQL shall be 4.0 percent defective.

 101. Cylinder or container not as specified.

 102. Evidence of leakage.

 103. Marking not as specified.

 104. Net weight not in accordance with rated cylinder capacity.

 4.3.4 Tests. Samples selected in accordance with 4.3.2 shall be tested as

specified in 4.4.1 through 4.4.4. AQL shall be 1.5 percent defective.

 4.4 Test methods.

 4.4.1 Water content. The fluorocarbon refrigerant shall be tested for

water content. The analysis may be conducted by using the phosphorus

pentoxide method, by infrared absorption, by an electrolytic moisture

analyzer, or by a piezoelectric analyzer. The Karl Fischer method shall be

the referee method in confirming accuracy of results. Water content greater

than specified in table I shall constitute failure of this test.

 4.4.2 Air in the vapor phase.

 4.4.2.1 Types 12, 13, 21, 22, 114, 116, 500, 502, and 503. Fluorocarbon

refrigerant numbers 12, 13, 21, 22, 114, 116, 500, 502, and 503 shall be tested 

for air in the vapor phase in the original container by the determination of 

gases not absorbable in perchloroethylene using water as a sealant. The test 

may be conducted by the determination of gases not absorbable in 

perchloroethylene using mercury as a sealant, or by the determination of gases 

remaining when the refrigerant is frozen. The determination of gases not 

absorbable in perchloroethylene using water as a sealant shall be the standard.

 4.4.2.1.1 Apparatus.

 (a) Absorption vessel, Lab Glass Co. No. LG-11119 or equal.

 (b) Leveling bulb and connecting tubing.

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 (c) Perchloroethylene reagent: specific gravity at 59 deg./39 deg. F,

 1.628-1.632; no free halogens; 0.001 maximum free acid as HC1:

 0.0007 maximum residue on evaporation; distill completely between

 238 and 252 deg. F; 31 deg. F maximum cloud point.

 

 (d) Silicone solution: 1 part "Siliclad" (Scientific Glass Co.) in

 100 parts of water.

 4.4.2.1.2 Procedure.

 (a) Wash the absorption vessel thoroughly and rinse in distilled

 water. Coat the inside with the silicone solution, let stand

 for 5 minutes and then discard the solution. Rinse again with

 distilled water and dry at 212 deg. F for 10 minutes.

 (b) When cool, add 20 ml of distilled water and fill with

 perchloroethylene.

 (c) Add sufficient water to the leveling bulb to give a water seal.

 (d) Collect a 100 cc sample from the vapor space of the refrigerant

 unit directly into the absorption vessel. A slight positive

 pressure is needed to prevent entry of extraneous air.

 (e) Tilt the vessel in such a way as to remove all the water lock

 which separated the perchloroethylene from the refrigerant gas.

 Allow the perchloroethylene to flow into the upper chamber of the

 vessel and gently agitate to aid in the absorption of the

 refrigerant gas.

 (f) Return the vessel to an upright position and allow the water

 layer to flow back into the burette section.

 (g) Adjust the leveling bulb so that the liquid layers are at the

 same level.

 (h) Read the percent of nonabsorbable gas from the burette.

 (i) A blank run is made with a sample from the liquid phase of the

 refrigerant unit and the result subtracted from the analysis of

 the vapor phase.

The presence of air in the vapor phase in excess of 1.5 percent by volume

shall constitute failure of this test.

 4.4.2.2 Gas chromatography. Fluorocarbon refrigerants may be tested for

the concentration of air in the vapor phase by gas chromatography. A

concentration of air in excess of the percent by volume listed in table I

shall constitute failure of this test.

 4.4.3 Boiling point, boiling range, and high boiling impurities.

 4.4.3.1 Apparatus.

 (a) Goetz phosphorus tube, 100 ml capacity.

 (b) Thermometer, National Bureau of Standards certified for the

 temperature range anticipated.

 (c) Carborundum crystals, 20 mesh.

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 4.4.3.2 Procedure.

 (a) Fill the Goetz tube with 100 ml of the sample, add two or three

 crystals of carborundum, and suspend temperature indicating

 instrument in the sample.

 (b) Suspend the tube in a medium (air or water) held at a minimum

 temperature of 90 deg. F above the expected boiling point.

 (c) As soon as the thermometer is constant after 5 ml of the sample 

 has been distilled, record the reading as the initial observed

 boiling point.

 (d) Record as the end point the temperature reached when 85 ml of

 sample has evaporated. Calculate the boiling range.

 (e) Transfer the tube and the remaining 15 ml of sample to a second

 medium maintained at a temperature 50 deg. F above the boiling

 point.

 (f) After 30 minutes, record the residual material as the percentage

 of high boiling impurities.

 (g) Correct the boiling point to 29.92 inches Hg as follows:

 Obtain atmospheric pressure at point of test in inches of

 mercury. Corrected boiling point (deg. F) equals the observed

 boiling point plus factor for each inch below 29.92 inches or

 minus factor for each inch above 29.92 inches as applicable in

 table II.

 TABLE II. Factors for Correcting Boiling Point to 29.92 In. Hg.

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3 Fluorocarbon Correction 3

3 Refrigerant Factor deg. F/inc. Hg. 3

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3 11 1.7 3

3 12 1.5 3

3 13 1.1 3

3 21 1.6 3

3 22 1.3 3

3 113 1.8 3

3 114 1.6 3

3 118 1.2 3

3 500 1.4 3

3 502 1.3 3

3 503 1.1 3

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A corrected boiling point other than that specified in table I, a corrected

boiling range in excess of that specified in table I, or a percentage of high

boiling impurities more than that specified in table I, shall constitute

failure of this test.

 4.4.4 Chlorination test. Add 3 or 4 drops of a saturated solution of

silver nitrate to 5 ml of absolute methyl alcohol in a test tube and shake. 

Reagent shall be negative. Add 5 ml of the sample. Any turbidity indicates

the presence of chloride ions and constitutes failure of this test.

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 4.5 Examination of preparation for delivery. An examination shall be made

to determine compliance with the requirements of section 5. A sample unit

shall be one shipping container fully prepared for delivery. Sampling shall

be in accordance with MIL-STD-105. The inspection level shall be S-2 with an

AQL of 4.0 expressed in terms of percent defective.

 5. PREPARATION FOR DELIVERY

 5.1 Packing. Packing shall be level A, B, or Commercial, as specified

(see 6.2).

 5.1.1 Level A.

 5.1.1.1 Disposable cylinders. Disposable cylinders in unit packs (see

3.2.1) shall be packed in an upright position in a close fitting box

conforming to PPP-B-601, overseas type, style I or J, or PPP-B-621, class 2,

style optional. Contents shall be blocked and cushioned in accordance with

MIL-STD-1186. Boxes shall be closed and reinforced in accordance with the

appendix to PPP-B-636.

 5.1.1.2 Cylinders and drums. Unless otherwise specified, cylinders and

drums shall be either packed in boxes as specified in 5.1.1.1, or pelletized

in accordance with MIL-STD-147, as specified in the contract or order (see

6.2). The loads shall be secured in accordance with the appendix to the

applicable specification.

 5.1.2 Level B.

 5.1.2.1 Cylinders, drums, and disposable cylinders. Packing shall he

specified in 5.1.1, except that domestic boxes shall be used.

 5.1.3 Commercial. Refrigerant containers shall be packed in accordance

with Title 49 Code of Federal Regulations. Packing for military air shipment

shall be in accordance with TM 38-250.

 5.2 Marking.

 5.2.1 Military agencies. Marking for level A or B shall be in accordance

with MIL-STD-129.

 5.2.2 Civil agencies. Marking shall he in accordance with FED. STD. No. 123.

 6. NOTES

 6.1 Intended use. The fluorocarbon compounds covered by this specification 

are intended primarily for use in refrigeration and air conditioning units, 

however, some of the gases may be used as an aerosol propellant or as nonpolar 

heat transfer and electronic isolation media. Fluorocarbons of solvent grades 

are not covered by this specification.

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 6.2 Ordering data. Purchasers should select the preferred options permitted 

herein and include the following information in procurement documents:

 (a) Title, number, and date of this specification.

 (b) Type fluorocarbon required (see 1.2).

 (c) When contractor shall furnish Government-approved cylinders (see

 3.4).

 (d) When contractor-owned DOT-approved cylinders shall be furnished

 (see 3.2).

 (e) When the contractor will furnish DOT-approved disposable containers 

 (see 3.2.1).

 (f) When military materiel painting is required (see 3.3.2).

 (g) When cylinder capacities shall differ from capacities of Government-

 approved cylinders (see 3.4).

 (h) Level of packing required (see 5.1).

 (i) When containers shall be boxed, pelletized, or shipped loose (see

 5.1.1.2).

 (j) When leak detecting dye is to be added (see 3.7).

 6.3 Cylinder capacities. Fluorocarbon refrigerants should be purchased by

weight (pounds avoirdupois). Type II is available in disposable containers

or gas cylinders. Type 113 is usually furnished in disposable containers. 

All other types are supplied in cylinders or DOT-approved containers having

nominal capacities between 10 and 150 pounds, depending upon material

purchased and container size.

 6.4 Automated cylinder handling systems. Fluorocarbon refrigerants have

been purchased for a number of years on a cost per unit basis. Suppliers of

fluorocarbons operate near automated filling plants in which valves,

cylinders and containers are serviced internally and externally in accordance

with the requirements of Title 49 Code of Federal Regulations, to maintain

the purity and integrity of the suppliers' fluorocarbon products. In these

contracts Government cylinders are received serviced (including color coding,

MIL-STD-101) and filled, or rejected and returned to the supplying agency at

no additional charge for cylinder service. This specification has been

written .o accept automatic internal and external cylinder handling unless

otherwise specified for special military requirements.

 6.5 Recycled material. It is encouraged that recycled material be used

when practical as long as it meets the requirements of the specification.

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 6.6 Venting to atmosphere. In compliance with EPA regulations limiting

refrigerants to the atmosphere fluorocarbon aerosol propellants have been

deleted from this specification. Care should be exercised in utilization of

these products to minimize venting to the atmosphere in all applications.

MILITARY INTERESTS: CIVIL AGENCY COORDINATING ACTIVITIES:

 GSA - FSS

Custodians: HEW - FDA

 Army - ME VA - OSS

 Navy - SH

 Air Force - 68 Preparing activity:

 Army - ME

Review activities:

 Army - MD, EA, MI DOD Project 6830-0104

 DSA - GS

User activity:

 Navy - YD

 DOD - MA

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 Orders for this publication are to be placed with General Services

Administration, acting as an agent for the Superintendent of Documents. See

Section 2 of this specification to obtain extra copies and other documents

referenced herein.

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