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British Hydromechanics Research Association (BHRA)
- Hydraulic Institute Standards (HIS)
- Institute of Electrical and Electronic Engineers (IEEE)
- International Electrotechnical Commission (IEC)
- Reglamento Técnico de Instalaciones Eléctricas (RETIE)
- Instrument Society of America (ISA)
- American Water Works Association (AWWA)
- ANSI/ASME
- American Society for Testing and Materials (ASTM)
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