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R-700 — Cotton

Material Id
Cotton
Record Id
700
Date
9/9/1949
Delta T (F)
24.04
Delta X (in)
0.7254
Density (lb/ft3)
0.83
Description
Roll 42170T, Sample # 8, Backing
Form
Blanket
K W Mk (W/mK)
0.2558
Material
Cotton
Mean Temp (F)
70.92
R Value per Inch (ft2hF/BTU/in)
0.563831
Rsi per Inch (m2K/W/in)
0.099296
Standard
Nist Srd 81 API
Test Method
ASTM C 177

Source: NIST SRD 81 API

cotton — record id 700 · rsi per inch 0.0992963 m2K/W/in · r value per inch 0.563831 ft2hF/BTU/in · k w mk 0.2558 W/mK · mean temp 70.92 F | Insulation R Values | Engineering Database