A-A-1201A
TABLE I
|
Classes |
Grit sizes |
Backing weight (1) |
Coated product (1) (2) min. avg. break. strength |
||
|
|
|
Pounds per 2880 square feet + 5% |
Standard Industry Desig. (2) |
Machine direction lbs/in. |
Cross machine direction lbs/in. |
|
1 and 4 |
All |
40 |
A |
25 |
12 |
|
2 |
220, 180, 150, 120, 100 |
70 70 |
C C |
45 45 |
25 32 |
|
2 |
80, 60, 50, 40, 36 |
90 90 |
D D |
55 55 |
32 32 |
|
3 |
All |
130 |
E |
90 |
45 |
(1) Backing weights and breaking strengths are measured after samples are in moisture equilibrium with an atmosphere of 50 + 2 percent relative humidity at 21 + 1 degrees C (70 + 2 degrees F).
(2) This is an average of four tests.
The issue of ANSI B74.18 in effect on the date of the solicitation shall be used to determine compliance with stated requirements.
Workmanship. The workmanship should be equal to or be better in every respect than that which is considered good practice by industry.
Preservation, packaging, packing, labeling, and marking. The preservation, packaging, packing, labeling, and marking shall be as specified in the contract or order.
Notes.
The purchaser shall specify class and grit size.
ANSI standards are available from the American National Standards Institute, Inc., 1430 Broadway, New York, NY 10018.
When this commercial item description is used for procurement, the commercial item certification clause must appear in the solicitation.
The cross reference between P-P-121D and A-A-1201A class are as follows:
|
P-P-121D |
A-A-1201A |
|
1 |
1 |
|
2 |
2 |
|
3 |
3 |
|
7 |
4 |
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