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R-890 — Rubber

Name: Insulation R Values — rubber: record id 890 · rsi per inch 0.0485196 m2K/W/in · r value per inch 0.275507 ft2hF/BTU/in · date 5/4/1953 · k w mk 0.5235 W/mK
Creator: Engineering Database

Material Id: Rubber
Record Id: 890
Date: 5/4/1953
Delta T (F): 12.76
Delta X (in): 0.479
Density (lb/ft3): 18.17
Description: Arctic Black Rubber (5), 0.4 in.
Form: Slab
K W Mk (W/mK): 0.5235
Material: Rubber
Mean Temp (F): 66.69
R Value per Inch (ft2hF/BTU/in): 0.275507
Rsi per Inch (m2K/W/in): 0.04852
Standard: Nist Srd 81 API
Test Method: ASTM C 177

Source: NIST SRD 81 API

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