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R-831 — Rock Wool
- Material Id
- Rock Wool
- Record Id
- 831
- Date
- 8/13/1952
- Delta T (F)
- 24.24
- Delta X (in)
- 1.0189
- Density (lb/ft3)
- 4.31
- Description
- Rock wool, Super felt, Specimen Cut From 4 in. Batt
- Form
- Blanket
- K W Mk (W/mK)
- 0.2523
- Manufacturer
- Johns Manville
- Material
- Rock Wool
- Mean Temp (F)
- 71.29
- R Value per Inch (ft2hF/BTU/in)
- 0.571652
- Rsi per Inch (m2K/W/in)
- 0.100674
- Standard
- Nist Srd 81 API
- Test Method
- ASTM C 177
Source: NIST SRD 81 API