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Insulation R Values: bone char
447 to 644
Insulation R-values and thermal conductivity data from NIST SRD 81 — covers fiberglass, foam, cellulose, mineral wool, and other building insulation materials
| material id | record id | date | delta t (F) | delta x (in) | density (lb/ft3) | description | form | k w mk (W/mK) | material | mean temp (F) | r value per inch (ft2hF/BTU/in) | rsi per inch (m2K/W/in) | standard | test method |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| bone char | 447 | 4/17/1946 | 24.73 | 0.9798 | 43.61 | New bone char, loose in frames moderately compacted | Loose | 0.6348 | Bone Char | 89.64 | 0.227202 | 0.040013 | NIST SRD 81 API | ASTM C 177 |
| bone char | 448 | 4/18/1946 | 23.8 | 0.9838 | 86.04 | Discarded from refinery (sugar), loose in frames moderately compacted | Loose | 1.1334 | Bone Char | 88.95 | 0.127252 | 0.02241 | NIST SRD 81 API | ASTM C 177 |
| bone char | 449 | 4/19/1946 | 23.14 | 0.9806 | 76.77 | Specimens placed in frames, moderately compacted | Loose | 0.9725 | Bone Char | 88.34 | 0.148306 | 0.026118 | NIST SRD 81 API | ASTM C 177 |
| bone char | 450 | 4/24/1946 | 22.67 | 0.9883 | 79.8 | Specimens placed in frames, moderately compacted | Loose | 1.0544 | Bone Char | 91.98 | 0.136787 | 0.02409 | NIST SRD 81 API | ASTM C 177 |
| bone char | 451 | 4/25/1946 | 22.74 | 0.988 | 79.8 | Specimens placed in frames, moderately compacted | Loose | 1.0517 | Bone Char | 90.19 | 0.137138 | 0.024151 | NIST SRD 81 API | ASTM C 177 |
| bone char | 452 | 4/25/1946 | 22.04 | 0.988 | 79.8 | Specimens placed in frames, moderately compacted | Loose | 1.088 | Bone Char | 118.78 | 0.132562 | 0.023346 | NIST SRD 81 API | ASTM C 177 |
| bone char | 641 | 11/26/1948 | 21.59 | 0.9737 | 64.96 | — | Loose | 0.8688 | Bone Char | 128.83 | 0.166008 | 0.029236 | NIST SRD 81 API | ASTM C 177 |
| bone char | 642 | 11/29/1948 | 21.13 | 0.9743 | 86.56 | — | Loose | 1.2328 | Bone Char | 128.65 | 0.116992 | 0.020604 | NIST SRD 81 API | ASTM C 177 |
| bone char | 643 | 11/30/1948 | 21.71 | 0.9736 | 56.97 | Atlantic C | Loose | 0.8577 | Bone Char | 129.12 | 0.168157 | 0.029614 | NIST SRD 81 API | ASTM C 177 |
| bone char | 644 | 12/1/1948 | 22 | 0.9737 | 75.42 | — | Loose | 1.1023 | Bone Char | 129.45 | 0.130843 | 0.023043 | NIST SRD 81 API | ASTM C 177 |
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