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Test Board Physical Properties
Property	Unit	Average		Individual
Property	Unit	Requirement	Result	Requirement	Result
Modulus of rupture (MOR) (after preconditioning)	MPa	≥ 17.2	38.5	≥ 13.8	25.7
Modulus of elasticity (MOE) (after preconditioning)	MPa	≥ 3 100	5 254	≥ 2 480	4 135
Internal bond (after preconditioning)	MPa	≥ 0.345	0.632	≥ 0.276	0.570
Bond durability - MOR after 2-hour boil (tested when wet)	MPa	≥ 8.6	20.3	≥ 6.9	15.5
Bond durability - MOR after six cycles	MPa	≥ 8.6	33.6	≥ 6.9	23.6
Thickness swell: 24-hour soak	%	≤ 25	8.5	≤ 30	9.9
Linear expansion: oven-dry to saturated	%	≤ 0.40	0.23	≤ 0.48	0.28
Linear expansion: 50% to 90% RH	%	≤ 0.20	0.10	≤ 0.24	0.13

Creep Properties
Property		Units	Average		Individual
Property		Units	Requirement	Result	Requirement	Result
Creep properties at 20°C	cumulative creep	mm	≤ 1.7	1.52	≤ 2.04	1.63
Creep properties at 20°C	secondary creep		≤ 0.4	0.29	≤ 0.48	0.33
Creep properties at 20°C	irrecoverable creep		≤ 1.1	0.92	≤ 1.32	0.98
Creep properties at 30°C	cumulative creep	mm	≤ 2.2	2.36^{Footnote (1)}	≤ 2.64	3.18^{Footnote (1)}
Creep properties at 30°C	secondary creep		≤ 0.4	0.21	≤ 0.48	0.27
Creep properties at 30°C	irrecoverable creep		≤ 1.5	1.60^{Footnote (1)}	≤ 1.8	2.19^{Footnote (1)}
Percent increase at higher ambient temperature (30°C) of creep properties	cumulative creep	%	≤ 35	56^{Footnote (1)}	≤ 42	95^{Footnote (1)}
Percent increase at higher ambient temperature (30°C) of creep properties	secondary creep		≤ 0	−27^{Footnote (1)}	0	−18^{Footnote (1)}
Percent increase at higher ambient temperature (30°C) of creep properties	irrecoverable creep		≤ 50	74^{Footnote (1)}	≤ 60	123^{Footnote (1)}

Retention of Residual Properties
Exposure		Residual Property Requirements (MPa)
		MOR				MOE				Internal Bond^{Footnote (1)}
		Average		Individual		Average		Individual		Average
		Req't	Result	Req't	Result	Req't	Result	Req't	Result	Req't	Result
After 2-hour boil (modified)		≥ 8.6	36.4	≥ 6.9	24.0	≥ 1 550	5 576	≥ 1 240	4 683	≥ 0.104	0.323
After six-cycle test		≥ 8.6	33.6	≥ 6.9	23.6	≥ 2 015	5 060	≥ 1 612	3 567	≥ 0.035	0.153
At −20°C		≥ 17.2	43.6	≥ 13.8	25.5	≥ 3 100	5 810	≥ 2 480	4 702	≥ 0.0345	0.681
After fungal exposure	Aspergillus niger v. Teigh	≥ 13.8	39.3	≥ 11.0	32.7	≥ 2 480	5 253	≥ 1 984	4 542	≥ 0.207	0.501
After fungal exposure	Penicillium luteum	≥ 13.8	38.2	≥ 11.0	28.6	≥ 2 480	5 119	≥ 1 984	4 226	≥ 0.207	0.390
After soaking in 1% hydrochloric acid		≥ 7.7	28.2	≥ 6.2	20.4	≥ 2 480	5 080	≥ 1 984	3 995	≥ 0.069	0.147
After soaking in 1% sodium hydroxide		≥ 12.0	28.5	≥ 9.6	21.3	≥ 2 325	4 480	≥ 1 860	3 619	≥ 0.155	0.244
After soaking in water		≥ 14.6	34.6	≥ 11.7	24.8	≥ 2 790	4 979	≥ 2 232	4 251	≥ 0.224	0.321

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