GB/T 30788-2025 Corrosion controlling technology of steel pipelines covered by cold-applied petrolatum tape

GB/T 30788-2014 Specification of cold-applied petrolatum tape coatings for steel pipelines

GB/T 269-1991 Lubricating grease and petrolatum—Determination of cone penetration GB/T 269-2023 Determination of cone penetration of lubricating greases and petrolatum GB/T 1037-1988 Test method for water vapor transmission of plastic film and sheet—Cup method GB/T 1037-2021 Test method for water vapor transmission of plastic film and sheet—Desiccant method and water method GB/T 1408.1-1999 Methods of test for electric strength of solid insulating materials-Tests at power frequencies GB/T 1408.1-2006 Electrical strength of insulating materials—Test methods—Part 1:Tests at power frequencies GB/T 1408.1-2016 Insulating materials—Test methods for electric strength—Part 1:Test at power frequencies GB/T 1725-2007 Paints,varnishes and plastics—Determination of non-volatile-matter content GB/T 3536-1983 Petroleum products—Determination of flash and fire points—Cleveland open cup method GB/T 3536-2008 Petroleum products—Determination of flash and fire points—Cleveland open cup method GB/T 3820-1997 Determination of thickness of textiles and textile products GB/T 3923.1-1997 Textiles—Tensile properties of fabrics—Part 1:Determination of breaking force and elongation at breaking force—Strip method GB/T 3923.1-2013 Textiles—Tensile properties of fabrics—Part 1:Determination of maximum force and elongation at maximum force using the strip method GB/T 6343-1995 Cellular plastics and rubbers—Determination of apparent (bulk) density GB/T 6343-2009 Cellular plastics and rubbers—Determination of apparent density GB/T 8026-1987 Petroleum waxes and petrolatums—Determination of drop melting point GB/T 8026-2014 Standard test method for drop melting point of petroleum wax,including petrolatum GB/T 8026-2023 Test method for drop melting point of petroleum wax,including petrolatum GB 8624-2012 Classification for burning behavior of building materials and products 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/T 10125-1997 Corrosion tests in artificial atmospheres—Salt spray tests GB/T 10125-2012 Corrosion tests in artificial atmospheres—Salt spray tests GB/T 10125-2021 Corrosion tests in artificial atmospheres—Salt spray tests GB/T 13377-1992 Crude petroleum and liquid or solid petroleum products—Determination of density or relative density—Capillary stoppered pyknometer and graduated bicapillary pyknometer method GB/T 13377-2010 Crude petroleum and liquid or solid petroleum products-Determination of density or relative density-Capillary stoppered pyknometer and graduated bicapillary pyknometer methods GB/T 30651-2014 Test method of flowability of petrolatum tape at high temperature HB 7736.2-2004 Test method for physical properties of composite material prepreg Part 2:Determination of mass per unit area SH/T 0025-1999 Rust preventive oils--Test method of salt water immersion SH/T 0025-1990 Anti-rust oil immersion test method 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 30538-2014 Document management applications—Quality control for scanning office documents in colour