FED-STD-791 Lubricants, Liquid Fuels, And Related Products, Testing Method OfThis test method standard is composed of standard test methods for sampling, inspecting and testing lubricants, liquid fuels and related products. It is issued pursuant to the Federal Property and Administration Services Act of 1949, as amended and its application to the purchase of commodities referred to herein is mandatory on all Federal agencies.

Pages 1 - - 297 - 298 - 299 - 300 - 301 - 302 - 303 - 304 - 305 - 306 - 307 - 308 - 309 - 310 - 311 - 312 - 313 - 314 - 315|||

'�NOTE:This draft dated 15 April 2006' by DasH - Page 306 of 460

FED-STD-791D

flammability, handling and storage precautions, emergency treatment and measures, and

spill practices of each chemical are explained.

5.2 Test panel, chemical-lead grade (ASTM B 29-55 or equal) 3.5 H 4.13 H 0.16

cm (1-3/8 H 1-5/8 H 1/16 in), conforming to Table I.

TABLE I. Composition of lead test pane.

Element

Content percent

Maximum

Minimum

Silver

0.020

0.002

Copper

0.080

0.040

Arsenic, antimony, and tin

0.002

-----

(total)

0.001

-----

Zinc

0.002

-----

Iron

0.005

-----

Bismuth

-----

99.90

Lead (by difference)

5.3 Test panel, copper, electrolytic (ASTM B 152/152M, 3.5 H 4.13 H 0.130 cm

[1-3/8 H 1-5/8 H 0.051 in] [16 gage]).

5.4 Naphtha, petroleum (TT-N-97).

5.5 Acetone (ASTM D 329).

5.6 Steel wool.

5.7 Pads, absorbent-cotton.

6. PROCEDURE

6.1 Preheat and adjust bath to 163� " 1�C (325� " 2�F).

6.2 Pour 500 mL of the sample into a clean sample tube, and place tube into the

bath so that the bath level is at least 2.5 cm (1 in) above the sample level.

6.3 Connect air supply line to the aerator intake of the sample tube.

6.4 Allow approximately 30 min for the specimen to come to test temperature.

6.5 Drill a 3/16-inch hole in the center of each test panel (see 5.2 and 5.3).

6.6 Polish and clean the test panels (handling only with forceps) as follows:

305