HG/T 2519-2017
Sodium hexametaphosphate for industrial use
HG/T 2519-2007
Sodium hexametaphosphate for industrial use
HG/T 2519-1993
AWWA B502-05
Sodium Polyphosphate, Glassy (Sodium Hexametaphosphate)
AWWA B502-01
Sodium Polyphosphate, Glassy (Sodium Hexametaphosphate)
AWWA B502-94
Sodium Polyphosphate, Glassy (Sodium Hexametaphosphate) (includes addendum B502a-97)