GB/T 30790.4-2014
Paints and varnishes.Corrosion protection of steel structures by protective paint systems.Part 4: Types of surface and surface preparation (English Version)

Standard No.

GB/T 30790.4-2014

Language

Chinese, Available in English version

Release Date

2014

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 30790.4-2014

Scope

This Part of GB/T 30790 deals with the following types of carbon steel or low-alloy steel surfaces and their surface treatments: -- uncoated surfaces; -- thermal sprayed zinc, aluminum or their alloy surfaces; -- hot-dip galvanized Zinc surface;--electrogalvanized surface;--powder galvanized surface;--coated pre-primed surface;--other painted surface. This standard defines a number of surface preparation grades, but does not specify the requirements for the condition of the substrate before surface preparation. This section excludes highly polished surfaces and work-hardened surfaces.

GB/T 30790.4-2014 Referenced Document

• GB/T 13288.1 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-c
• GB/T 13288.2 Preparation of steel substrates before application of paints and related products.Surface roughness characteristics of blast-cleaned steel substrates.Part 2:Method for the grading of surface profile of abrasive blast-cleaned steel.Comparator procedure
• GB/T 13912 Metallic coatings—Hot dip galvanized coatings on fabricated iron and steel articles—Specifications and test methods*， 2020-06-02 Update
• GB/T 17850.1 Preparation of steel substrates before application of paints and related products—Specifications for non-metallic blast-cleaning abrasives—Part1:General introduction and classification*， 2017-12-29 Update
• GB/T 17850.3 Preparation of steel substrates before application of paints and related products--Specifications for non-metallic blast-cleaning abrasives--Copper refinery slag
• GB/T 17850.6 Preparation of steel substrates before application of paints and related products.Specifications for non-metallic blast-cleaning abrasives.Part 6:Iron furnace slag
• GB/T 18570.2 Preparation of steel substrates before application of paints and related products.Tests for the assesssment of surface cleanliness.Part 2:Laboratory determination of chloride on cleaned surfaces
• 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 18570.4 Preparation of steel substrates before application of paints and related products--Tests for the assessment of surface cleanliness--Guidance on the estimation of the probability of condensation prior to paint application
• GB/T 18838.1 Preparation of steel substrates before application of paints and related products--Specifications for metallic blast-cleaning abrasives--General introduction and classification
• GB/T 18838.3 Preparation of steel substrates before application of paints and related products.Specifications for metallic blast-cleaning abrasives.Part 3:High-carbon cast-steel shot and grit
• GB/T 18838.4 Preparation of steel substrates before application of paints and related products.Specifications for metallic blast-cleaning abrasives.Part 4:Low-carbon cast-steel shot
• GB/T 18839.1 Preparation of steel substrates before application of paints and related products--Surface preparation methods--General principles
• GB/T 18839.2 Preparation of steel substrates before application of paints and related products--Surface preparation methods--Abrasive blast-cleaning
• GB/T 18839.3 Preparation of steel substrates before application of paints and related products--Surface preparation methods--Hand-and power-tool cleaning
• GB/T 30790.1 Paints and varnishes.Corrosion protection of steel structures by protective paint systems.Part 1:General introduction
• 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
• GB/T 8923.2 Preparation of steel substrates before application of paints and related products.Visual assessment of surface cleanliness.Part 2:Preparation grades of previously coated steel substrates after localized removal of previous coatings
• GB/T 9286 Paints and varnishes—Cross-cut test*， 2021-08-20 Update
• GB/T 9793 Technical raying--Metallic and other inorganic coatings--Zinc,aluminum and their alloys
• ISO 4 Information and documentation - Rules for the abbreviation of title words and titles of publications

GB/T 30790.4-2014 history

• 2014 GB/T 30790.4-2014 Paints and varnishes.Corrosion protection of steel structures by protective paint systems.Part 4: Types of surface and surface preparation

GB/T 30790.4-2014 -All Parts