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R-1530 — Nbs Gum Rubber

Material Id
Nbs Gum Rubber
Record Id
1530
Date
6/9/1964
Delta T (F)
10.66
Delta X (in)
0.4722
Density (lb/ft3)
62.69
Description
Natural rubber, ASTM-2A recipe, Cure 140 °C, 0.5 h: R(100g); ZnO(5g); S(2.5g); Stearic ACID(2.0G); Altex(1.0g); Phenyl Beta Naphthylamine (antioxidant) (1.0G); Samples 8X8X½ in., No.1,6
Form
Slab
K W Mk (W/mK)
1.0406
Manufacturer
NBS, Rubber Section
Material
Nbs Gum Rubber
Mean Temp (F)
18.46
R Value per Inch (ft2hF/BTU/in)
0.138601
Rsi per Inch (m2K/W/in)
0.024409
Standard
Nist Srd 81 API
Test Method
ASTM C 177

Source: NIST SRD 81 API

nbs_gum_rubber — record id 1530 · rsi per inch 0.024409 m2K/W/in · r value per inch 0.138601 ft2hF/BTU/in · date 6/9/1964 · delta x 0.4722 in | Insulation R Values | Engineering Database