# IS 17658:2021: Polyvinyl Chloride (PVC) Homopolymers — Specification - BIS Compliance & Testing Guide

      

IS 17658:2021 testing protocols, QCO compliance mandate (National Benchmark Specification (Mandatory QCO Rescinded Nov 12, 2025 via Gazette S.O. 5139(E))), and 

      
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## Standards guides

- [Is 14426](/standards/is-14426)
- [Is 4985](/standards/is-4985)
- [Is 694](/standards/is-694)
- [Is 1554](/standards/is-1554)
- [Is 5831](/standards/is-5831)
- [Is 6721](/standards/is-6721)
- [Is 12254](/standards/is-12254)
- [Is 15844](/standards/is-15844)
- [Is 13592](/standards/is-13592)
- [Is 12818](/standards/is-12818)
- [Is 15328](/standards/is-15328)
- [Is 10151](/standards/is-10151)
- [Is 17658](/standards/is-17658)
- [Is 1891](/standards/is-1891)
- [Is 14421](/standards/is-14421)

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