ISO 182-3-2025 塑料 高温下氯乙烯均聚物和共聚物及其制品释放氯化氢及其他酸性产物倾向的测定 第3部分 电导率测定法

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Carl 2026-02-06 12 1.46MB 24 页 20星币
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Plastics — Determination of
the tendency of compounds and
products based on vinyl chloride
homopolymers and copolymers to
evolve hydrogen chloride and any
other acidic products at elevated
temperatures —
Part 3:
Conductometric method
Plastiques — Détermination de la tendance des compositions et
produits à base d’homopolymères et de copolymères du chlorure
de vinyle à dégager du chlorure d’hydrogène et éventuellement
d’autres produits acides à températures élevées —
Partie 3: Méthode conductimétrique
International
Standard
ISO 182-3
Third edition
2025-10
Reference number
ISO 182-3:2025(en) © ISO 2025
ii
ISO 182-3:2025(en)
© ISO 2025 – All rights reserved
COPYRIGHT PROTECTED DOCUMENT
© ISO 2025





CP 401 • Ch. de Blandonnet 8

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www.iso.org
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ISO 182-3:2025(en)
Foreword ....................................................................................................................................................................................................................................................iv
1 Scope ............................................................................................................................................................................................................................................. 1
2 Normative references ................................................................................................................................................................................................. 1
3 Termsanddefinitions ................................................................................................................................................................................................ 2
4 Principle ........................................................................................................................................... ......................................................................................... 2
5 Reagents .................................................................................................................................................................................................................................... 2
6 Apparatus ................................................................................................................................................................................................................................ 2
7 Preparation of test samples ................................................................................................................................................................................. 7
  ........................................................................................................................................................................................................................ 7
7.2 PVC plastisols ........................................................................................................................................... .............................................................7
  ........................................................................................................7
  ............................................................................................................................................................................................ 7
7.5 PVC coatings ..........................................................................................................................................................................................................7
  ..............................................................................................................................7
8 Number of tests ................................................................................................................................................................................................................. 7
9 Temperatures for dehydrochlorination ................................................................................................................................................. 7
10 Test procedure ................................................................................................................................................................................................................... 8
  ....................................................................................................................................................................... 8
  ...............................................................................................................................................................................8
  .....................................................................................8
  ..............................................................................................................................................8
  .....................................................................................................................................................8
11 Expression of results ................................................................................................................................................................................................... 9
12 Test report .............................................................................................................................................................................................................................. 9
13 Precision ................................................................................................................................................................................................................................... 9
  ........................................................................................................................................................................................................................ 9
  ......................................................................................................................................................................................................10
  ...................................................................... ........................................................................................................................... 10
  .....................................................................................................10
  ................................................................................................................................................10
  ......................................................................................................................................................................................................... 12
Annex A  Cleaning of the apparatus .........................................................................................................................................13
Annex B  Calculation of repeatability and reproducibility — Conductometric and
pH-meter methods ...................................................................................................................................................................................................... 14
Annex C  Interlaboratory test......................................................................................................................................................... 16
Bibliography .........................................................................................................................................................................................................................................18
iii
© ISO 2025 – All rights reserved
Contents Page

标签: #ISO #高温 #塑料

摘要:

ISO 182-3-2025 是塑料行业高温稳定性测试领域的国际标准,专门用于测定氯乙烯均聚物、共聚物及其制品在高温条件下释放氯化氢及其他酸性产物的倾向。该标准采用电导率测定法,通过精确测量样品在受热过程中产生的酸性气体被吸收液吸收后引起的电导率变化,从而量化酸性产物的释放量。这一方法适用于聚氯乙烯(PVC)及其改性材料的质量控制和热稳定性评估,帮助制造商确保材料在加工和使用中的安全性与耐久性。文档详细规定了测试原理、仪器要求、操作步骤及结果计算,是塑料研发、质检和合规认证的重要参考。

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ISO 182-3-2025 塑料 高温下氯乙烯均聚物和共聚物及其制品释放氯化氢及其他酸性产物倾向的测定 第3部分 电导率测定法.pdf

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作者:Carl 分类:国际标准 价格:20星币 属性:24 页 大小:1.46MB 格式:PDF 时间:2026-02-06

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