GB/T 26255-2022 Steel-plastic-transition fittings for polyethylene(PE) piping systems for the supply of gaseous fuels

GB/T 26255.1-2010 Mechanical fittings for polyethylene piping systems for the supply of gaseous fuels—Part 1:Metal fittings for pipes of nominal outside diameter less than or equal to 63 mm GB/T 26255.2-2010 Mechanical fittings for polyethylene piping systems for the supply of gaseous fuels—Part 2:Metal fittings for pipes of nominal outside diameter greater than 63 mm

GB/T 19278-2018 General terms and their definitions of thermoplastic pipes,fittings and valves GB/T 2828.1-2003 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2828.1-2012 Sampling procedures for inspection by attributes—Part 1:Sampling schemes indexed by acceptance quality limit(AQL) for lot-by-lot inspection GB/T 2918-1998 Plastics—Standard atmospheres for conditioning and testing GB/T 2918-2018 Plastics—Standard atmospheres for conditioning and testing GB/T 6111-2003 Thermoplastics pipes for the conveyance of fluids-Resistance to internal pressure—Test method GB/T 6111-2018 Thermoplastics piping systems for the conveyance of fluids—Determination of the resistance to internal pressure GB/T 7306.2-2000 Pipe threads with 55 degree thread angle where pressure-tight joints are made on the threads—Part 2:Taper internal and external threads GB/T 8163-1999 Seamless steel tubes for liquid service GB/T 8163-2008 Seamless steel tubes for liquid service GB/T 8163-2018 Seamless steel pipes for liquid service GB/T 8806-2008 Plastics piping systems—Plastics components—Determination of dimensions GB/T 8923.1-2011 Preparation of steel substrates before application of paints and related products—Visual assessment of surface cleanliness—Part 1:Rust grades and preparation grades of uncoated steel substrates and of steel substrates after overall removal of previous coatings GB 15558.1-1995 Buried polyethylene (PE) pipes for the supply of gaseous fuels GB 15558.1-2003 Buried Polyethylene(PE)piping systems for the supply of gaseous fuels—Part 1:Pipes GB/T 15558.1-2015 Buried polyethylene(PE)piping systems for the supply of gaseous fuels—Part 1:Pipes GB/T 15558.1-2023 Buried polyethylene(PE) piping systems for the supply of gaseous fuels—Part 1:General GB 15558.2-1995 Buried polyethylene (PE) fittings for the supply of gaseous fuels GB/T 15558.2-2005 Buried polyethylene (PE) piping systems for the supply of gaseous fuels—Part 2:Fittings GB/T 15558.2-2023 Buried polyethylene(PE) piping systems for the supply of gaseous fuels—Part 2:Pipes GB/T 18252-2000 Plastics piping and ducting systems—Determination of the long-term hydrostatic strength of thermoplastics materials in pipe form by extrapolation GB/T 18252-2008 Plastics piping and ducting systems—Determination of the long-term hydrostatic strength of thermoplastics materials in pipe form by extrapolation GB/T 18252-2020 Plastics piping and ducting systems—Determination of the long-term hydrostatic strength of thermoplastics materials in pipe form by extrapolation GB/T 18475-2001 Thermoplastics materials for pipes and fittings for pressure applications—Classification and designation—Overall Service(design) coefficient GB/T 18570.3-2005 Preparation of steel substrates before application of paints and related products—Tests for the assessment of surface cleanliness—Part 3:Assessment of dust on steel surface prepared for painting(pressure-sensitive tape method) GB/T 18570.9-2005 Preparation of steel substrates before application of paints and related products—Tests for the assessment of surface cleanliness—Part 9:Field method for the conductometric determination of water-soluble salts GB/T 23257-2009 Polyethylene coating for buried steel pipeline GB/T 23257-2017 Polyethylene coating for buried steel pipeline GB/T 23258-2009 Standard practice controlling internal corrosion in steel pipelines GB/T 23258-2020 Standard practice controlling internal corrosion in steel pipelines and piping systems GB/T 23658-2009 Elastomeric seals—Material requirement for seals used in pipes and fittings carrying gaseous fuels and hydricarbon fluid SY/T 0315-2013 Steel pipe fusion-bonded epoxy powder coating technical specification SY/T 0315-2005 The technical specifications for a single-layer molten weld epoxy coating applied to steel pipes SY/T 0315-1997 Steel pipe welding epoxy powder coating technology standard GB/T 8806-1988 Method for dimension measuring of plastic pipes GB 50236-2011 Code for construction and acceptance of field equipment, industrial pipe welding engineering GB/T 18570.9-2025 Preparation of steel substrates before application of paints and related products—Tests for the assessment of surface cleanliness—Part 9:Field method for the conductometric determination of water-soluble salts

ISO 17885:2015