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R-990 — Greenstone

Name: Insulation R Values — greenstone: record id 990 · rsi per inch 0.00177487 m2K/W/in · r value per inch 0.0100782 ft2hF/BTU/in · date 5/20/1955 · k w mk 14.3109 W/mK
Creator: Engineering Database

Material Id: Greenstone
Record Id: 990
Date: 5/20/1955
Delta T (F): 2.23
Delta X (in): 0.9716
Density (lb/ft3): 186.72
Description: Igneous Rock
Form: Block
K W Mk (W/mK): 14.3109
Material: Greenstone
Mean Temp (F): 52.3
R Value per Inch (ft2hF/BTU/in): 0.010078
Rsi per Inch (m2K/W/in): 0.001775
Standard: Nist Srd 81 API
Test Method: ASTM C 177

Source: NIST SRD 81 API

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greenstone — record id 990 · rsi per inch 0.00177487 m2K/W/in · r value per inch 0.0100782 ft2hF/BTU/in · date 5/20/1955 · k w mk 14.3109 W/mK | Insulation R Values | Engineering Database