GB/T 34202-2017 Ductile iron pipes,fittings and accessories—Epoxy coating(heavy-duty)

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 9274-1988 Paints and varnishes—Determination of resistance to liquids GB/T 13288.1-2008 Preparation of steel substrates before application of paints and related products—Surface roughness characteristics of blast-cleaned substrates—Part 1:Specification and definitions for ISO surface profile comparators for the assessment of abrasive blast-cleaned surfaces 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) ISO 21809-2:2007 GB/T 1771-1991 Paints and varnishes—Determination of resistance to neutral salt spray GB/T 1771-2007 Paints and varnishes—Determination of resistance to neutral salt spray(fog) GB/T 2411-1980 Plastics—Shore hardness test GB/T 2411-2008 Plastics and ebonite—Determination of indentation hardness by means of a durometer(shore hardness) GB/T 5210-1985 Determination of adhesion of coats—Pull-off test GB/T 5210-2006 Paints and varnishes—Pull-off test for adhesion GB/T 13295-2003 Ductile iron pipes,fittings and accessories for water or gas applications GB/T 13295-2008 Ductile iron pipes,fittings and accessories for water or gas applications GB/T 13295-2013 Ductile iron pipes,fittings and accessories for water or gas applications GB/T 13295-2019 Ductile iron pipes,fittings and accessories for water or gas applications GB/T 17219-1998 Standard for safety evaluation of equipment and protective materials in drinking water system GB/T 17456.2-2010 Ductile iron pipes—External zinc coating—Part 2:Zinc rich paint with finishing layer GB/T 17457-1998 Ductile iron pipes—Centrifugal cement mortar lining—General requirements GB/T 17457-2009 Ductile iron pipes and fittings—Cement mortar lining GB/T 17457-2019 Ductile iron pipes and fittings—Cement mortar lining GB/T 26081-2010 Ductile iron pipes,fittings and accessories for sewage applications GB/T 26081-2022 Ductile iron pipes,fittings and accessories for sewerage applications GB/T 17219-2025 Hygienic safety evaluation of distribution equipment,protective materials and treatment materials in drinking water system GB/T 17456.2-2025 Ductile iron pipes,fittings and accessories—External zinc-based coating—Part 2:Zinc rich paint with finishing layer