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USG Structural Panels Test Data
| Physical and Mechanical Properties | Test Standard | Approximate Values Standard (Metric) |
|---|---|---|
| Noncombustibility | ASTM E136-12 (unmodified) CAN/ULC-S114 | Passed Passed |
| Surface-burning characteristics (flame spread/smoke developed) | ASTM E84 CAN/ULC S102 | 0/0 0/0 |
| Weight (3/4in. [19mm] thickness) | ASTM D1037 | 5.3 lb./ft.2 (26 kg/m2) |
| Mold resistance | ASTM D3273, ASTM G21 | 10, 0 |
| Termite resistance | AWPA Standard E1-13 | 9.8 |
| Low VOC emissions | CDHP/EHLB/Standard Method V1.1-2010a | Compliant |
| Concentrated load | ASTM E661 | 550 lb. (2.45 kN) static 0.108 in. (2.7 mm) max. deflection @ 200 lb. (0.89 kN) |
| Water absorptionb | ASTM C1185, Sec. 5.2.3.1 | <15.0% |
| Linear variation with change in moisture (25% to 90% relative humididty) | ASTM C1185, Sec. 8 | <0.10% |
(a) Reference Standard: California Department of Public Health CDPH/EHLB/Standard Method Version 1.1, 2010 (Emission testing method for CA Specification 01350).
(b) Absorption measured from equilibrium conditioning followed by immersion in water for 48 hours.