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R-1042 — Perlite

Name: Insulation R Values — perlite: record id 1042 · rsi per inch 0.0651783 m2K/W/in · r value per inch 0.3701 ft2hF/BTU/in · date 8/8/1956 · k w mk 0.3897 W/mK
Creator: Engineering Database

Material Id: Perlite
Record Id: 1042
Date: 8/8/1956
Delta T (F): 22.82
Delta X (in): 1.0166
Density (lb/ft3): 5.882
Description: Specimens Placed in Wood Frames
Form: Loose
K W Mk (W/mK): 0.3897
Manufacturer: Atlantic Perlite Co.
Material: Perlite
Mean Temp (F): 128.07
R Value per Inch (ft2hF/BTU/in): 0.3701
Rsi per Inch (m2K/W/in): 0.065178
Standard: Nist Srd 81 API
Test Method: ASTM C 177
Trade Name: Panacalite (?)

Source: NIST SRD 81 API

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perlite — record id 1042 · rsi per inch 0.0651783 m2K/W/in · r value per inch 0.3701 ft2hF/BTU/in · date 8/8/1956 · k w mk 0.3897 W/mK | Insulation R Values | Engineering Database