We follow various International Standard
A. British Standard for equipment : BS 4994 1987
British Standard for Pipe : BS-6464-1984, BS 7159-1989, BS-5480- 1982, BS-5480-1990, BS-5500/53
B. German Standard :
DIN 16965 : Part 4 & 5
DIN 16966 Part 1,2,4,5 & 6 etc
C. American Standard :
ASTM Volume 08.04
PS 15-69 Voluntary Product Standard.
ASME RTP 1 2000
AWWA M-45 & C-950
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