| A641 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
| ASTM | 81346 | AMERICAN SOCIETY FOR TESTING AND MATERIALS |
| ASTM A641 | 81346 | AMERICAN SOCIETY FOR TESTING AND MATERIALS |
| ASTMA641 | 81346 | AMERICAN SOCIETY FOR TESTING AND MATERIALS |
| QQ-W-461 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
| QQW461 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |