GB/T 21464-2025

Active

Rubber—Determination of 5-ethylidenenorbornene (ENB) or dicyclopentadiene (DCPD) in ethylene-propylene-diene (EPDM) terpolymers

橡胶乙烯-丙烯-二烯烃（EPDM）三元共聚物中5-乙叉降冰片烯（ENB）或双环戊二烯（DCPD）的测定

Standard Type

GBT

ICS

83.040.10

CCS

G35

Status

现行

Issue Date

2025-08-29

Implementation

2026-03-01

Responsible Dept

中国石油和化学工业联合会

Drafting Unit

N/A

🔗 Related Standards / 同类标准

GB/T 13021-1991 Determination for the carbon black content of polyethylene pipes and fittings by calcination and pyrolysis GB/T 14796-1993 Raw natural rubber--Colour index test GB/T 14795-1993 Terminology of raw natural rubber GB/T 1844.2-1995 Symbols of plastics and resins--Part 2:Fillers and reinforcing materials GB/T 1844.3-1995 Symbols of plastics and resins--Part 3:Plasticizers GB/T 1844.1-1995 Symbols of plastics and resins--Part 1:Basic polymers and their special characteristics GB/T 7535-1996 Rubber，vulcanized--Classification--Description of the classification system GB/T 16589-1996 Rubber，vulcanized--Classification--Rubber materials