بخش 2.page-6.5

2-2 ISO 8990:1994, Thermal insulation – Determination of steady-state thermal transmission properties -Calibrated and guarded hot box
2-3 ISO 12567-1:2000, Thermal performance of windows and doors — Determination of thermal transmittance by hot box method — Part 1: Complete windows and doors
2-4 ISO 8302 : Thermal insulation - Determination of steady-state thermal resistance and related properties- guarded hot plate apparatus