A-A-1979 Absorbent Material, Oil And Water (For Floors And Decks)

Pages 1 - 2

[METRIC]

A-A-1979A

January 29, 1998

Superseding

A-A-1979

August 29, 1984

COMMERCIAL ITEM DESCRIPTION

ABSORBENT MATERIAL, OIL AND WATER (FOR FLOORS AND DECKS)

The General Services Administration has authorized the use of this commercial item description, for all federal agencies.

1. Scope. This commercial item description covers absorbent clay/silicate floor sweep.

2. Salient Characteristics:

2.1 Materials. The absorbent material shall consist of a uniform mixture of minerals of the silicate type processed in such a manner as to conform to the requirements in Table 1.

TABLE I. Physical characteristics

Characteristics			Test Method
	Maximum	Minimum
Matter retained on:			ASTM D 2862
No. 6 US Standard Sieve	12.0 percent
No. 30 US Standard Sieve	99.0 percent	52.0 percent
No. 40 US Standard Sieve	99.8 percent	73.0 percent
No. 60 US Standard Sieve	----	90.0 percent
Oil absorption capacity	----	0.6 ml	see below
Water absorption capacity	----	0.7 ml	see below
Solubility in distilled water, percent	1.5	----	see below
Resistance to attrition, percent retained on No. 80 Sieve below	10.0	----	see

2.2 Absorption of lubrication oil. Tape an 18-mesh screen over one end of a glass tube measuring 23 cm in length and 3 cm in inside diameter. Weigh 50 g of the absorbent material into the open end of the glass tube held in a vertical position. Collect any fine particles passing through the screen and add to the top of the tube. Clamp the tube at an angle of 60 degrees to the horizontal above a 100 ml graduate. Pour 75 ml of SAE 30 weight lubricating oil at 25� C into the open end of the tube. Allow the oil to drain out of the tube for three hours after the first drop of

Beneficial comments, recommendations, additions, deletions, clarification, etc., and any data which may improve this document should be sent to: GSA, Paints and Chemicals Center, 400 15th Street, S.W., Auburn, WA 98001.