GB/T 25025-2025 Technical requirements for glass-lined equipment

GB 25025-2010 Specification of glass-lined equipment for industry

GB/T 7989-2003 Vitreous and porcelain enamels—Determination of resistance to condensing hydrochloric acid vapour GB/T 7989-2013 Viterous and porcelain enamels—Determination of resistance to chemical corrosion by boiling acids and their vapours GB/T 7991.1-2021 Test method of viterous and porcelain enamels—Part 1:Determination of resistance to alkaline liquids GB/T 7991.3-2021 Test method of viterous and porcelain enamels—Part 3:Determination of resistance to thermal shock GB/T 7991.4-2019 Test method of viterous and porcelain enamels—Part 4:Determination of resistance to impact GB/T 7991.5-2014 Test method of viterous and porcelain enamels—Part 5:Determination of thickness by electromagnetic method GB/T 7991.6-2014 Test method of viterous and porcelain enamels—Part 6:High voltage test GB/T 7994.1-2014 Test method of glass-lined equipments—Part 1:Hydraulic pressure test GB/T 7994.2-2014 Test method of glass-lined equipments—Part 2:Gas leak test 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 9439-1988 Grey iron castings GB/T 9439-2010 Grey iron castings GB/T 9439-2023 Grey iron castings GB/T 12229-2005 General purpose industrial valves—Specification of carbon steel castings HG/T 2377-2009 The determination of the corrosion resistance of the teflon coating to boiling water and steam HG/T 2377-1992 The determination of the corrosion resistance of the vitreous enamel layer to boiling water HG/T 2637-2017 Glazed parts geometric size detection method HG/T 2637-2011 Geometric Dimensional Inspection Methods for Glazed Porcelain Parts HG/T 2637-2007 Geometric dimension testing method for enameled parts HG/T 2637-1994 The geometric dimensions of glazed porcelain parts are measured using a method HG/T 3105-2009 Preparation of glazed steel plate test specimens NB/T 47008-2017 Carbon steel and alloy steel forgings used in pressure equipment NB/T 47008-2010 Carbon and alloy steel forgings for pressure equipments NB/T 47009-2017 Low-temperature pressure-bearing equipment alloy steel for forging NB/T 47009-2010 Low-alloy steel forgings for low temperature pressure equipments NB/T 47013.4-2015 "Non-destructive testing of pressure equipment - Part 4: Magnetic particle testing" NB/T 47013.5-2015 Non-destructive testing of pressure equipment - Part 5: Penetrant testing GB/T 7991.6-2025 Test method of viterous and porcelain enamels—Part 6:High voltage test