New Standard from Last Update.

1. SCOPE

This standard covers requirements for dual flush beta (outflow) valve suitable for fitting in gravity type flushing cisterns as per IS 774 and IS 7231.

2. REFERENCES

The standards given below 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 agreement based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below:

774 : 2021 Ceramic (vitreous China) flushing cisterns for water closets and urinals - Specification (sixth revision)

2267 : 1995 Polystyrene moulding and extrusion materials - Specification (second revision)

4905 : 2015/ISO 24153 : 2009 Random sampling and randomization procedures (first revision)

7231 : 2021 Plastic flushing cistern for water closets and urinals - Specification (third revision)

7328 : 2020 Specification for polyethylene material for moulding and extrusion (third revision)

12234 : 2021 Plastic equilibrium float valves for cold water services - Specification (first revision)