ISO 18177:2025
International Standard
Current Edition
·
Approved on
13 May 2025
Plastics — Test method for estimation of the short chain branching distribution of semicrystalline ethylene 1-olefin copolymers — Differential scanning calorimetry (DSC)
ISO 18177:2025 Files
English
20 Pages
Current Edition
OMR
66.69
ISO 18177:2025 Scope
This document specifies a test method for the estimation of the short chain branching distribution of semicrystalline ethylene 1-olefin copolymers by successive self-nucleation and annealing (SSA) with conventional, high performance and fast differential scanning calorimetry.
This document is applicable to the estimation of the short chain branching distribution of raw materials of semicrystalline ethylene 1-olefin copolymers and its products.
Quantitative calculation of short chain branching content, degree of crystallinity and short chain branching distribution is applicable to ethylene/1-butene copolymers, ethylene/1-hexene copolymers and ethylene/1-octene copolymers.
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