NS EN ISO 8990 Ed. 1 (1997)现行
Thermal Insulation - Determination Of Steady-state Thermal Transmission Properties - Calibrated And Guarded Hot Box
出版：Norwegian Standards (Norges Standardiseringsforbund)
专家解读视频
Gives principles for designing of apparatus and minimum requirement to be met for determining the laboratory steady-state thermal transmission properties of building and similar components for industrial use. Does not specify a particular design as requirements can vary widely.
Supersedes NS 3161 (06/2002)
DIN EN ISO 8990 (1996-09) - Identical
NBN EN ISO 8990:1996 - Identical
I.S. EN ISO 8990:1997 - Identical
NEN EN ISO 8990:1997 - Identical
BS EN ISO 8990:1996 - Identical
SN EN ISO 8990:1996 - Identical
ONORM EN ISO 8990:1996 - Identical
ISO 8990:1994 - Identical
UNI EN ISO 8990:1999 - Identical
NF EN ISO 8990:1996 - Identical
SS EN ISO 8990 Ed. 1 (1996) - Identical
UNE EN ISO 8990:1997 - Identical
