IS 7231 : 2021 Plastic Flushing Cisterns for Water Closets and Urinals — Specification
Revised Standard from Last Update.
1. SCOPE
1.1 This standard covers requirements for manually operated dual-flush plastic flushing cisterns of capacities 6/3 litres, 4.8/2.8 litres and 4/2 litres for water closets (WC) including squatting pans and urinals, together with flush pipe details.
1.2 This standard does not cover ceramic (vitreous China) flushing cisterns and close-coupled cisterns, which are covered in IS 774 and IS 2556 (Part 8), respectively.
2. REFERENCES
The standards listed in Annex A contain provisions, which through reference in this text constitute provisions of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated in Annex A.