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| AWWA | American Water Works Association | NIST | National Institute of Std & Tech |
| WEFTEC | Water Environment Federation | AIChE | American Institute of Chemical Eng |
| WWEMA | The Water and Wastewater Equipment Manufacturers Association | ASME | American Society of Mech Eng |
| ACS | American Chemical Society | API | American Petroleum Institute |
| ISA | Instrument Society of America | IEEE | Institute of Electrical & Electronic Eng |
| Fieldbus | The Field Bus Foundation | ANSI | American National Stds Institute |
| HART | The HART Foundation | ISO | International Standardization Org |
| FM | Factory Mutual | Sched B | Schedule B Export Codes |
| EPA | US Environmental Protection Agency | FDA | US Food & Drug Administration |
| OSHA | US Occupational Safety & Health Admin | ||
