group ph
group ph, Total:8 items.
The international standard classification for "group ph" includes: .
The Chinese standard classification for "group ph" includes: .
American National Standards Institute （ANSI)
- ANSI PH4.41-1990 Photography - Processing Waste - Analysis for Free Cyanide at pH6
- ANSI PH3.415-1984 Photography (Flash Equipment) - Flash Array "600"
- ANSI PH3.414-1984 Photography (Flash Equipment) - Flipflash/Topflash Arrays; Correction-March 1985
- ANSI PH3.617-1980 Definitions Testing and Specifications for Appearance Imperfections of Optical Elements and Assemblies
- ANSI PH1.44-1990 Photography (Films) - Rolls for Phototypesetting or Photocomposing Devices or Both - Dimensions
- ANSI PH3.616-1990 Photography (Optics) - Antireflection Coatings for Photographic Lenses - Performance Specifications and Methods for Testing
Instrument Society of America (ISA)
- ISA ADV PH MEAS CNTRL-2005 Advanced pH Measurement and Control (Third Edition)
American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE)
- ASHRAE PH-97-3-3-1997 GAX Component Simulation and Validation
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