استانداردها

BSI - British Standards Institution (29)

IEEE - The Institute of Electrical and Electronics Engineers, Inc. (4)

American Water Works Association (AWWA) (1)

APHA,American Public Health Association (1)

AWWA,American Water Works Association (1)

WEF,Water Environment Federation (1)

2000 - 2025 (1970)

1922 - 1999 (141)

English (2000)

English, French (6)

German, English (6)

Japanese (1)