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R-478 — Fiberboard
- Material Id
- Fiberboard
- Record Id
- 478
- Date
- 12/30/1946
- Delta T (F)
- 18.51
- Delta X (in)
- 0.4741
- Density (lb/ft3)
- 17.66
- Description
- Lll-F-321B, Grade A, ½ in.
- Form
- Board
- K W Mk (W/mK)
- 0.3639
- Manufacturer
- United Refrig. Mfg. Co.
- Material
- Fiberboard
- Mean Temp (F)
- 71.68
- R Value per Inch (ft2hF/BTU/in)
- 0.396339
- Rsi per Inch (m2K/W/in)
- 0.069799
- Standard
- Nist Srd 81 API
- Test Method
- ASTM C 177
Source: NIST SRD 81 API