This standard prescribes the methods of test for evaluating the physical, mechanical, and thermal properties of thermal insulating materials. It provides standardized procedures for measuring bulk density, moisture content, water absorption, and compressive strength to ensure material quality and performance in HVAC and industrial applications.
Describes various test methods for determining properties of thermal insulating materials.
Quick Reference Values
Standard laboratory testing temperature27 ± 2°C
Standard laboratory relative humidity65 ± 5%
Drying temperature for inorganic materials105 to 110°C
Minimum number of test specimens for bulk density3
Key Formulas
Moisture Content (%) = 100 * (M1 - M2) / M2 (where M1 is initial mass, M2 is oven-dry mass)
Bulk Density (kg/m³) = M / V (where M is mass, V is volume)
Practical Notes
Test specimens must be properly conditioned to standard laboratory temperature and humidity prior to testing to ensure accurate results.
Thermal conductivity specific testing procedures cross-reference IS 3346 using the guarded hot plate method.
Care must be taken not to exceed temperature limits when drying cellular plastics or organic foams to avoid material degradation during moisture content testing.