Hope the below details will provide good idea about the Thermal insulation:
How to test the Thermal Transmittance "U" and Thermal resistance "R" value. What is the standard to be followed:
How to test the Thermal Conductivity "K" and what is the standard to be followed:
Many thanks for Mr Jim Malek of KINGSPN, as many of the information are referred from his presentation.
How to test the Thermal Transmittance "U" and Thermal resistance "R" value. What is the standard to be followed:
ISO 9869, ASTM C1046 and ASTM C1155.
Once you got "U" value find the "R" value by formula
U=1/R
K=Thickness of material / R.
U=1/R
K=Thickness of material / R.
ASTM D1518, JIS L1096, ISO 11092, GB/T 11048, FZ/T 73016