Acronyms A Å Angstrom(s) AA Atomic Absorption abs absolute ACGIH American Conference of Governmental Industrial Hygienists ASTM American Society for Testing Materials atm atmosphere(s) avg average B Bar Bureau of Automotive Repair bar Unit of pressure equal to 100,000 pascals bp boiling point Btu British thermal unit(s) C CAA Clean Air Act cal calorie(s) CAS Chemical Abstract Services ccm cubic centimeter(s) per minute ccs cubic centimeter(s) per second CEM Continuous Emission Monitor cf cubic feet CFCs Chlorofluorocarbons CFR Code of Federal Regulations CGA Compressed Gas Association cm centimeter(s) cm2 square centimeter cm3, cc cubic centimeter COA Certificate of Analysis COC Certificate of Conformance CP Chemically Pure Cp specific heat at constant pressure Cv specific heat at constant volume Cv coefficient of flow °C degree(s) Celsius D DID Discharge Ionization Detector DISS Diameter Index Safety System DOT Department of Transportation E ea each ECD Electron Capture Detector EPA Environmental Protection Agency F FID Flame Ionization Detector FNPT Female National Pipe Thread F.O.B. Freight on Board FPD Flame Photometric Detector FPT Female Pipe Thread ft foot, feet ft3 cu ft cubic foot (feet) FTIR Fourier Transform Infrared Spectrometer or Spectroscopy °F degree(s) Fahrenheit G g gram(s) gal gallon(s) GC Gas Chromatography or Chromatograph GMIS Gas Manufacturers Intermediate Standard GMP Good Manufacturing Practice(s) GPA Gas Processors Association H Hall Electrolytic Conductivity Detector HAP Hazardous Air Pollutants HID Helium Ionization Detector hr hour Hz hertz I ICP Inductively Coupled Plasma (Spectroscopy) ID identification or inside diameter IDLH Immediately Dangerous to Life or Health in inch in3 cu in cubic inch(es) ISO International Organization for Standardization J J joule K K Kelvin kg kilogram(s) kPa Kilopascal(s) °K degree(s) Kelvin L L liter(s) lb pound(s) LC Liquid Chromatography LEL Lower Explosive Limit Lpm liters per minute M μ micron(s), 10–6 m m3 cubic meter(s) mA milliampere max maximum mg milligram(s) min minute(s) ml milliliter(s) mm millimeter(s) MNPT Male National Pipe Thread mol.wt. molecular weight MOS Metal Oxide Semiconductor MPT Male Pipe Thread mp melting point MS Mass Spectrometry MTBE Methyl Tertiary Butyl Ether MVCR Male VCR MVFS Male Vacuum Face Seal MW molecular weight N N/A Not Applicable nbp normal boiling point NDIR Non–Dispersive Infrared Analyzer NDUV Non–Dispersive Ultraviolet Analyzer NER normal evaporation rate NF National Formulary NFPA National Fire Protection Association NIOSH National Institute for Occupational Safety and Health NIST National Institute of Standards and Technology nm nanometer(s) NMR Nuclear Magnetic Resonance Spectroscopy No number nom nominal NOS Not Otherwise Specified NPD Nitrogen/Phosphorous Detector NPT National Pipe Thread NTP Normal Temperature and Pressure NTRM NIST Traceable Reference Material O OD Outside Diameter Ohm–cm ohms centimeter OSHA Occupational Safety and Health Administration oz ounce(s) P Pa Pascal(s) PAMS Photochemical Air Monitoring Systems PID Photo Ionization Detector ppb part(s) per billion ppba part(s) per billion atomic ppbv part(s) per billion by volume ppbw part(s) per billion by weight ppm part(s) per million ppma part(s) per million atomic ppmv part(s) per million by volume ppmw part(s) per million by weight ppt part(s) per trillion ppta part(s) per trillion atomic pptv part(s) per trillion by volume pptw part(s) per trillion by weight psi pound(s) – force per square inch psia pound(s) – force per square inch absolute psig pound(s) – force per square inch gauge Q QA Quality Assurance QC Quality Control R Ra Roughness average RFO Restricted Flow Orifice °R degree(s) Rankine S scc standard cubic centimeters sccm standard cubic centimeters per minute sccs standard cubic centimeters per second scfh standard cubic feet per hour scfm standard cubic feet per minute scfs standard cubic feet per second SDS Safety Data Sheet sec second(s) SFC Supercritical Fluid Chromatography SFE Supercritical Fluid Extraction slpm standard liters per minute gr. specific gravity vol. specific volume SRM Standard Reference Materials SS Stainless Steel STEL Short Term Exposure Limit STP Standard Temperature and Pressure T TCD Thermal Conductivity Detector TEA Transversely Excited Atmosphere THC Total Hydrocarbon Content TLV Threshold Limit Value tp triple point TPH Total Petroleum Hydrocarbons TWA Time Weighted Average U UEL Upper Explosive Limiit UHP Ultra High Purity USP United States Pharmacopoeia V VAC Volts Alternating Current VDC Volts Direct Current VOC Volatile Organic Compounds vol volume vol% volume percent W w.c. water column pressure wt. weight wt% weight percent wt ppm weight parts per million Y yd yard(s) > Greater than ≥ Greater than or equal < Less than ≤ Less than or equal
Fresno Oxygen & Welding Supplies/Barnes Welding Supply is privileged to be a fully certified member of the PurityPlus® family, the biggest network of independent specialty gas producers in North America. We work locally to supply exceptional specialty gases that help address local needs.