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R-157 — Vermiculite

Material Id
Vermiculite
Record Id
157
Date
10/12/1939
Delta X (in)
1.012
Density (lb/ft3)
5.4
Description
Mica fill, 3 to 8 mesh, North Carolina Ore
Form
Loose
K W Mk (W/mK)
0.446
Material
Vermiculite
Mean Temp (F)
101.3
R Value per Inch (ft2hF/BTU/in)
0.323381
Rsi per Inch (m2K/W/in)
0.056951
Standard
Nist Srd 81 API

Source: NIST SRD 81 API

vermiculite — record id 157 · rsi per inch 0.0569507 m2K/W/in · r value per inch 0.323381 ft2hF/BTU/in · date 10/12/1939 · k w mk 0.446 W/mK | Insulation R Values | Engineering Database