This standard specifies the technical requirements for extruded polypropylene anti-corrosion coatings on steel pipelines. This standard is applicable to the design, construction and inspection of extruded polypropylene anti-corrosion coatings for buried or underwater steel pipelines with a design temperature range of -20°C to 110°C.
SY/T 7041-2016 Referenced Document
GB 6514 Safety code of practice for coating—Safety and ventilation for coating process*， 2023-12-28 Update
GB 7692 Safety code for painting.Safety、ventilation and air clean-up for pretreatment process of painting
GB/T 1040.2 Plastics—Determination of tensile properties—Part 2: Test conditions for moulding and extrusion plastics*， 2022-07-11 Update
GB/T 1408.1 Insulating materials.Test methods for electric strength.Part 1:Test at power frequencies*， 2016-12-13 Update
GB/T 1410 Methods of test for volume resistivity and surface resistivity of solid electrical insulating materials
GB/T 1633 Plastics--Thermoplastic materials--Determination of vicat softening temperature(VST)
GB/T 16422.2 Plastics—Methods of exposure to laboratory light sources—Part 2: Xenon-arc lamps*， 2022-04-15 Update
GB/T 18570.3 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 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 Polyethylene coating for buried steel pipeline*， 2017-05-12 Update
GB/T 2411 Plastics and ebonite.Determination of indentation hardness by means of a durometer(shore hardness)
GB/T 3682 Determination of the melt mass-flow rate (MFR) and the melt volume-flow rate (MVR) of thermoplastics
GB/T 4472 Detemination of density and relative density for chemical products
GB/T 50087 Code for design of noise control of industrial enterprises
GB/T 5470 Plastics.Determination of the brittleness temperature by impact
GB/T 6554 Resin based reactive compounds used for electrical insulation Part 2:Methods of test:Methods for coating pourders for electrical purposes
GB/T 8923.1 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 coa
GBZ 1 Hygienic standards for the design of industrial enterprises
HG/T 2751 Determination of the moisture content of unplasticized cellulose acetate
SY/T 7041-2016 history
2016SY/T 7041-2016 Specification of polypropylene coating for steel pipeline