NATIONAL BUREAU OF STANDARDS REPORT

NBS PROJECT NBS REPORT

0201-30-2320 July 1, 1954 3357

QUALIFICATION TESTS

OF

LAMPS SUPPLIED TO THE GOVERNMENT

BY

EIGHT CONTRACTORS

DURING FIRST TEN MONTHS

OF

CONTRACT PERIOD SEPTEMBER 1, 1953 TO AUGUST 31, 1954

by

W. A. Roche

S. W. Wilson

and

J. E. Jordan

Photometry and Colorimetry Section

Optics and Metrology Division

<NBS>

U. S. DEPARTMENT OF COMMERCE

NATIONAL BUREAU OF STANDARDS

The publication, ref: unless permission Is 25,D.C. Suchperr

cal ly prepared If th

Approved for public release by the

Director of the National Institute of

Standards and Technology (NIST) on October 9, 2015

in part, is prohibited

indards, Washington

sort has been specifiport for its own use,
-

-t
1.

Purpose of Tests

Paragraphs 1(g) and 1(h) of the Invitation for

Bids for Electric Lamps (class 17, part VI) issued

May 13, 1953 provided that any bid to supply lamps

to the Government during the contract period September 1, 1953 to August 31, 195*+, would be considered

only if the bidder was qualified under the requirements

of applicable Federal Specifications and also specified

means whereby succe%ful bidders could qualify for the

succeeding contract period September 1, 195*+ to August 31, 1955. This report gives a summary of the

tests made in accordance with these provisions of the

Invitation for Bids.

2.

Procedure

A Government lamp inspector made periodic visits

to the factories or warehouses of contractors supplying lamps to the Government and inspected these lamps

to determine compliance with applicable Federal Specifications. Samples from tentatively accepted lots of

lamps were selected and forwarded to the National Bureau of Standards for life test. The life tests of the

various categories of lamps were made in accordance

with the requirements of applicable Federal Specifications as follows:

Federal

Lamps Groups Specification

Incandescent large a-as« rs

Incandescent miniature m

Fluorescent fl

Photographic flash pf

W-T -lOle

W-L-lllb

W-L-116

W-L-122

3.

Number of Lamps Life-Tested

Lamps as follows, manufactured by current contractors, were life-tested:

Test Number

No. Lamp Manufacturer Groups Life-Tested

1 Amplex Corp. r s 80

2 Arc-Ray Electric Corp. fl 90

3 Champion Lamp Works a-n 679

4 Champion Lamp Works fl 90

5 General Electric Co. a-as- rs 602

6

et n r* IT 61

7

IV tt n fl 90

8

11 ct it pf 140

9 Radiant Lamp Corp. as 66

2

Test

No.

10

11

12

13

Ik

15

16

17

Lamp Manufacturer

Sylvania Electric Prod.

u ik a

tt it tt Tung- Sol Lamp Works

Westinghouse Elec.Corp.

u tfc it

It Ik u

It It tk

4. Results

Groups

Number

Life-Tested

a- r s 605

fl 90

pf 140

m- 403

a-as- rs 599

M 50

fl 90

pf 140

The lamps included in the qualification tests were the

product of eight manufacturers. These were grouped into

17 separate qualification tests as tabulated in Section 3

above. The .lamps in each of the 17 tests complied with the

qualification requirements of the applicable Federal Specifications as listed in Section 2 above, in effect on the

date of the tests. Detailed test results are on file at the

National Bureau of Standards.

5. Remarks

Each of the eight contractors currently supplying lamps

to the Government has qualified to have his bid to supply

lamps of the types listed in Section 3 above considered for

the contract period September 1, 195*+ to August 31* 1955-
*