Active standard | Published: 01/04/2026

ASTM D2227-96(2026)

Standard Specification for Natural Rubber (NR) Technical Grades

Available languages: English

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Detail information

Designation: ASTM D2227-96(2026)

Publication date: 01/04/2026

Pages: 2

Country: American technical standard

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Anotation

This specification covers the minimum physical and chemical requirements for five technical grades of raw natural rubber. Materials are classified into grades according to retained dirt content, ash content, volatile matter content, nitrogen content, initial plasticity, plasticity retention index, color index, and Mooney viscosity. Skim rubber is not permitted in any grade.

Keywords:
natural rubber (NR), technical grade ,, ICS Number Code 83.040.10 (Latex and raw rubber)

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