| ASTM | 81346 | AMERICAN SOCIETY FOR TESTING AND MATERIALS |
| ASTM C534 | 81346 | AMERICAN SOCIETY FOR TESTING AND MATERIALS |
| ASTMC534 | 81346 | AMERICAN SOCIETY FOR TESTING AND MATERIALS |
| C534 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
| HH-I-573 | 03938 | ARMSTRONG WORLD INDUSTRIES INC |
| HH-I-573 | 81348 | FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC |
| STANDARD ARMAFLEX5-8ID3-8WALL | 03938 | ARMSTRONG WORLD INDUSTRIES INC |
| STANDARDARMAFLEX5-8 | 03938 | ARMSTRONG WORLD INDUSTRIES INC |