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R-692 — Cotton

Name: Insulation R Values — cotton: record id 692 · rsi per inch 0.0967988 m2K/W/in · r value per inch 0.549649 ft2hF/BTU/in · k w mk 0.2624 W/mK · mean temp 71.47 F
Creator: Engineering Database

Material Id: Cotton
Record Id: 692
Date: 8/22/1949
Delta T (F): 24.11
Delta X (in): 0.7455
Density (lb/ft3): 0.73
Description: Roll 39414T, Sample # 5, Backing
Form: Blanket
K W Mk (W/mK): 0.2624
Material: Cotton
Mean Temp (F): 71.47
R Value per Inch (ft2hF/BTU/in): 0.549649
Rsi per Inch (m2K/W/in): 0.096799
Standard: Nist Srd 81 API
Test Method: ASTM C 177

Source: NIST SRD 81 API

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