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From [Institution name]
Table 1. CAN/ULC-S711.1-05 technical requirements-Class 2
| Property |
Requirement |
| Min. |
Max. |
| Air permeance (L/(m2•s) at 75 Pa) |
– |
0.02 |
| Closed cell content (%) |
90 |
– |
| Density (kg/m3) |
16 |
– |
| Dimensional stability – volume change (%) at |
−20°C |
– |
5 |
| 70°C |
– |
16 |
| Durability performance: air permeance per 1-m length after aging on specific substrates (L/s at 75 Pa) |
– |
0.05 |
| Elongation at break (%) |
5 |
– |
| Long-term thermal resistance (LTTR) at 25 mm thick (m2•°C/W) |
0.75 |
– |
| LTTR for 25 mm , 50 mm and 75 mm |
Report values |
| Surface-burning characteristics |
≥ 25 |
75 |
| Smoke-developed classification |
– |
250 |
| Tack-free time (min.) |
– |
2 |
| Tensile strength (kPa) |
130 |
– |
| Volatile organic compounds (time to reach maximum allowable limit levels) (h) |
24 |
– |
Table 2. CAN/ULC-S711.1-05 permissible concentration in indoor air of possible volatile organic emissions
| Compound |
Maximum Concentration in Indoor Air |
| mg/m3 |
ppm |
| Acetaldehyde |
1.80 |
1.0 |
| Dichlorofluoromethane |
0.42 |
0.1 |
| Dichlorofluoroethane |
3.83 |
0.8 |
| Trichlorofluoromethane |
56.2 |
10.0 |
| Chloroform |
0.49 |
0.1 |
| α-Methylstyrene |
2.42 |
0.5 |
| Chlorobenzene |
0.46 |
0.1 |
| 1, 4 Dioxane |
0.90 |
0.25 |
| Toluene |
3.77 |
1.0 |
| 1, 2, 4 Trimethylbenzene |
1.23 |
0.25 |
