NATIONAL BUREAU OF STANDARDS REPORT

NBS PROJECT NBS REPORT

0201-30-2320 July 1, 1955 4139

QUALIFICATION TESTS

OF

LAMPS SUPPLIED TO THE GOVERNMENT

BY

NINE CONTRACTORS

DURING FIRST TEN MONTHS

OF

CONTRACT PERIOD SEPTEMBER 1, 1954 TO AUGUST 31, 1955

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, re|

unless permission Is 25|D,C. Such peri

cal ly prepared If tt

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

jort has been speclfiport for Its own use,

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,

195*+, provided that any bid to supply lamps to the Government during the contract period September 1, 195^ to

August 31, 1955, would be considered only if the bidder

was qualified under the requirements of applicable Federal

Specifications and also specified means whereby successful

bidders could qualify for the succeeding contract period

September 1, 1955 to August 31, 1956. This report gives a

summary of the tests made in accordance with these provisions

of the Invitation for Bids.

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:

2. Procedure

Lamps Groups Federal Specification

Incandescent, large a-as-rs W-L-lOle

Incandescent miniature m W-L-lllb

Fluorescent fl W-L-116

Photographic flash Pf W-L-122

- 3

-

3. Number of Lamps Life-Tested

Lamps as follows, manufactured by current contractors,

were life-tested:

Test

No. Lamp Manufacturer Groups

Number

Life-Tested

1 Amplex Corp. rs 54

2 Arc-Ray Electric Corp. fl 90

3 Champion Lamp Works a-rs 504

4 Champion Lamp Works fl 90

5 Dura Electric Lamp Co. pf 115

6 General Electric Co. a-as-rs 411

7 General Electric Co. m 155

8 General Electric Co. fl 90

9 General Electric Co. pf 115

10 Radiant Lamp Corp. as 20

11 Sylvania Electric Prod. a-as-rs 609

12 Sylvania Electric Prod. fl 90

13 Sylvania Electric Prod. pf 138

14 Tung-Sol Lamp Works m 258

15 Westinghouse Elec. Corp. a-as-rs 546

16 Westinghouse Elec. Corp. m 79

17 Westinghouse Elec. Corp. fl 90

18 Westinghouse Elec. Corp. pf 115

4. Results

The lamps included in the qualification tests were the

product of nine manufacturers. These were grouped into 18

separate qualification tests as tabulated in Section 3 above.

The lamps in each of the 18 tests complied with the qualifica

tion 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 nine 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, 1955 to August 31, 1956.

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