1. thermal conductivity - tested at ambient temperature - aged 180 days (C-177)
2. thermal conductivity - tested at -180 deg - fresh foam (C-177)
3. thermal conductivity - tested at -180 deg - aged 180 days (C-177)
4. leachable halide content (ASTM C-871)
5. water absorption at 20 deg C (ASTM D2852)
6. Fire resistive properties (BS-4735):
extent of burn (max.)
extinguishment time (max.)
mean burning rate (max.)
7. Retention of weight (ASTM D-3014)
8. Linear coefficient of thermal exp/contraction (between -165 deg C and +21 deg C) (ASTM D696, BS-4370)
9. Cryogenic thermal stress resistance (CTSR)
a. tensile strength - tested at -165 deg C (ASTM D1623)
b. tensile modulus - tested at -165 deg C (ASTM D1623)
10. friability
11. buttler-chimney for weight retention & extinguish time
12. limited oxygen index
13. maximum smoke density
Regarding test#1 and 3 do we have to wait to get the foam aged 180 days or there is such a machine that can give equal effect to aged 180 days like in coating?
Yohanes,
In general, try the ASTM laboratory listing service.
In particular, I can do the tensile and thermal testing at those temperatures.
(www.redcore.ca)
Dear Garry, we're glad to know that you can do the tensile and thermal testing at cryogenic temperatures. May we know further regarding the procedures? Many thanks in advance. Please attach such testing services catalogue if possible to [email protected]
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