IS 17546 : 2021

What this standard covers

This standard specifies requirements regarding material, test methods, inspection and marking of injection moulded chlorinated polyvinyl chloride (CPVC) fittings for hot and cold water distribution supplies for water service up to and including 82 °C, intended for connection to CPVC pipes covered by IS 15778. This standard is applicable to fittings of following types: a) Fittings with solvent...

Scope, quoted from IS 17546 : 2021. Read the full standard

Requirements and tests, as the standard names them

• 3.11 Tests
• 8.3 Stress Relief Test
• 9.1 Hydrostatic Characteristics
• 9.2 Thermal Stability by Hydrostatic Pressure

Sub-clause names as printed under the heading “MECHANICAL PROPERTIES”, and those whose printed names themselves say “Test” in IS 17546 : 2021. Values and limits are deliberately not reproduced here — read them in the standard itself.

How the standard is organised

• 4 NOTATION
• 5 CLASSIFICATION OF FITTINGS
• 6 COMPOSITION
• 7 DIMENSIONS OF FITTINGS
• 8 PHYSICAL
• 9 MECHANICAL PROPERTIES

Test methods it refers to

• IS 15778

Edition history (per the BIS registry)

• IS 17546 : 2021 — current edition (last reviewed by BIS 2026-06-01)

Where this standard is used on NirmanDost

Listed by product makers

2 products in the NirmanDost catalogue name this standard on their spec sheets — Astral CPVC PRO Pipe SDR-11 (Class 1), Astral CPVC PRO Pipe SDR-13.5 (Class 2). That is the maker’s own claim, copied as printed; we have not tested these products against the standard, and a spec sheet can cite the wrong code.

Materials market

Also cited in the DSR↔brand equivalence map (32 brand matches).