ASTM International

Standard Test Method for Constant-Temperature Stability of Chemical Materials
 N E487

Annotation

This test method describes the assessment of constanttemperature stability (CTS) of chemical materials that undergo exothermic reactions. The techniques and apparatus described may be used on solids, liquids, or slurries of chemical substances.

When a series of materials is tested by this test method, the results permit ordering the materials relative to each other with respect to their thermal stability.

Limitations of Test:

This test method is limited to ambient temperatures and above.

This test method determines neither a safe storage temperature nor a safe processing temperature.

NOTE 1—A safe storage or processing temperature requires that any heat produced by a reaction be removed as fast as generated and that proper consideration be given to hazards associated with reaction products.

When this test method is used to order the relative thermal stability of materials, the tests must be run under the same confinement condition (see 8.3).

The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

This standard should be used to measure and describe the properties of materials, products, or assemblies in response to heat and flame under controlled laboratory conditions and should not be used to describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual fire conditions. However, results of this test may be used as elements of a fire risk assessment which takes into account all of the factors which are pertinent to an assessment of the fire hazard of a particular end use.