استانداردها

BSI - British Standards Institution (115)

IEEE - The Institute of Electrical and Electronics Engineers, Inc. (6)

American Water Works Association (AWWA) (2)

ETSI - European Telecommunications Standards Institute (2)

AASHTO - American Association of State Highway and Transportation Officials (1)

APHA,American Public Health Association (1)

AWWA,American Water Works Association (1)

WEF,Water Environment Federation (1)

2000 - 2025 (10100)

1922 - 1999 (1507)