GB/T 46831-2025

Upcoming

Plastics—Determination of isotactic index for polypropylene (PP)—Low-resolution nuclear magnetic resonance spectrometry

塑料 聚丙烯(PP)等规指数的测定 低分辨率核磁共振波谱法

Standard Type
GBT
ICS
83.080.20
CCS
G31
Status
Upcoming
Issue Date
2025-12-02
Implementation
2026-07-01
Centralized Committee
中国石油和化学工业联合会
Issuing Authority
国家市场监督管理总局、国家标准化管理委员会

Application Summary AI generated

This standard specifies a method for determining the isotactic index of polypropylene (PP) using low-resolution nuclear magnetic resonance (NMR) spectrometry. It is applied in the plastics industry for quality control and material characterization of PP resins, particularly in manufacturing and testing contexts where rapid, non-destructive measurement of polymer tacticity is required. The method is suitable for production line monitoring and laboratory analysis of PP materials used in packaging, automotive parts, and consumer goods.

Related Standards

Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.