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R-680 — Polyester
- Material Id
- Polyester
- Record Id
- 680
- Date
- 6/21/1949
- Delta T (F)
- 23.96
- Delta X (in)
- 0.9704
- Density (lb/ft3)
- 10.15
- Description
- Specimen Pair Unlike
- Form
- Block
- K W Mk (W/mK)
- 0.3374
- Manufacturer
- Nbs
- Material
- Polyester
- Mean Temp (F)
- 71.2
- R Value per Inch (ft2hF/BTU/in)
- 0.427469
- Rsi per Inch (m2K/W/in)
- 0.075282
- Standard
- Nist Srd 81 API
- Test Method
- ASTM C 177
Source: NIST SRD 81 API