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Position: Chinese Standard in English/GB/T 8923.1-2011
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 s (English Version)
Standard No.: GB/T 8923.1-2011 Status:valid remind me the status change

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Language:English File Format:PDF
Word Count: 5000 words Price(USD):120.0 remind me the price change

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Implemented on:2012-10-1 Delivery: via email in 1 business day
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Standard No.: GB/T 8923.1-2011
English Name: 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 s
Chinese Name: 涂覆涂料前钢材表面处理 表面清洁度的目视评定 第1部分:未涂覆过的钢材表面和全面清除原有涂层后的钢材表面的锈蚀等级和处理等级
Chinese Classification: A29    Material Protection
Professional Classification: GB    National Standard
ICS Classification: 25.220.10 25.220.10    Surface preparation 25.220.10
Issued by: AQSIQ,SAC
Issued on: 2011-12-30
Implemented on: 2012-10-1
Status: valid
Superseding:GB 8923-1988 Rust grades and Preparation Grades of Steel Surfaces before Applicati
Language: English
File Format: PDF
Word Count: 5000 words
Price(USD): 120.0
Delivery: via email in 1 business day
This Part of GB/T 8923 specifies a series of rust grades and preparation grades of steel surfaces (substrate) (see Chapters 2 and 3, respectively). The various grades are defined by written descriptions together with photographs that are representative examples as described in words. It is applicable to hot-rolled steel surfaces prepared for painting by methods such as blast-cleaning, hand and power tool cleaning and flame cleaning, although these methods rarely lead to comparable results. Essentially, these methods are intended for hot-rolled steel, but blast-cleaning methods, in particular, could also be used on cold-rolled steel of sufficient thickness to withstand any deformation caused by the impact of the abrasive or the effects of power tool cleaning. This Part is also applicable to steel substrates (surface) that show residues of firmly adhering paint and other foreign matter (see Note 1 in 3.1) in addition to residual mill scale. Note: The preparation grades of previously painted steel surfaces after only localized removal of paint coatings form the subject of ISO 8501-2. This Part relates the cleanliness of the surface to its visual appearance. In many instances, this is sufficient for the purpose but for coatings likely to be exposed to severe environments, such as water immersion and continuous condensation conditions, consideration should be given to testing for soluble salts and other invisible contaminants on the visually clean surface by the physical and chemical methods which form the subjects of the various parts of ISO 8502. The roughness characteristics of the surface should also be considered by reference to the various parts of ISO 8503.
1 Scope 2 Rust Grades 3 Preparation Grades 4 Procedure for Visual Assessment of Steel Substrates 5 Photographs Appendix A (Informative) Representative Photographic Examples of the Change of Appearance Imparted to Steel when Blast-cleaned with Different Abrasives Appendix NA (Informative) Comparison List of the International Standards and Their Corresponding National Standard Applying to Steel Surface Treatment Before the Application of Coating and Related Products References
Referred in GB/T 8923.1-2011:

GB/T 8923.1-2011 is referred in:
* GB 51022-2015 Technical Code for Steel Structure of Light-weight Building with Gabled Frames
*GB/T 29047-2012 Prefabricated directly buried insulating pipes and fittings with polyurethane [PUR]foamed-plastics and high density polyethylene [PE]casing pipes
*GB/T 9711-2017 Petroleum and natural gas industries―Steel pipe for pipeline transportation systems
*TB/T 456-2016 Couplers and coupler yokes for railway rolling stock
*GB 50446-2017 Code for construction and acceptance of shield tunnelling method
*JB/T 12474.10-2015 Coke oven machine-Part 10:Stamping machine
*HG/T 5178-2017 Anticorrosive coatings for metal surface under insulation
*SH/T 3113-2016 Technical specification for burners of tubular heater in petrochemical industry
*SY/T 0319-2012 Standard of Liquid Internal Coatings for Steel Tank
*JB/T 7016-2017 Storage/retrieval machine
*GB/T 20041.21-2017 Conduit systems for cable management- Part 21:Particular requirement for rigid conduit systems
*GB/T 10595-2017 Belt conveyors
*NB/T 47007-2018 Air-cooled heat exchangers
*GB/T 31817-2015 Specification of coating for corrosion protection of windpower equipments
*NB/T 47064-2017 Tank container for dangerous liquid goods
*JC/T 2286-2014 Steel-glass fiber reinforced plastic double layers buried oil tank
*MH/T 6028-2016 Passenger boarding bridge
*GB/T 11577-2020 Container securing fitting for ships
*GB 50205-2020 Standard for acceptance of construction quality of steel structures
*NB/T 10558-2021 Coating and packing for pressure vessels transport
*GB/T 25826-2022 Epoxy-coated steel for the reinforcement of concrete
*GB 50072-2021 Standard for design of cold store
*SY/T 0442-2018 Technical standard for internal fusion-bonded epoxy coating of steel pipe
*NB/T 35097.2-2017 Quality Degree Evaluate Standard of Unit Works in Hydropower Proj ects Part 2:Installation of Hydraulic Steel Structure and Hoists
*GB/T 40399-2021 General technical conditions for precast concrete part of prefabricated construction
*GB/T 23257-2017 Polyethylene coating for buried steel pipeline
*GB/T 38097-2019 Urban heating—Prefabricated directly buried insulating pipes and fittings with polyurethane(PUR)foamed-plastics and glass fiber reinforced plastics protect layers
Code of China
Standard
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 s (English Version)
Standard No.GB/T 8923.1-2011
Statusvalid
LanguageEnglish
File FormatPDF
Word Count5000 words
Price(USD)120.0
Implemented on2012-10-1
Deliveryvia email in 1 business day
Detail of GB/T 8923.1-2011
Standard No.
GB/T 8923.1-2011
English Name
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 s
Chinese Name
涂覆涂料前钢材表面处理 表面清洁度的目视评定 第1部分:未涂覆过的钢材表面和全面清除原有涂层后的钢材表面的锈蚀等级和处理等级
Chinese Classification
A29
Professional Classification
GB
ICS Classification
Issued by
AQSIQ,SAC
Issued on
2011-12-30
Implemented on
2012-10-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB 8923-1988 Rust grades and Preparation Grades of Steel Surfaces before Applicati
Language
English
File Format
PDF
Word Count
5000 words
Price(USD)
120.0
Keywords
GB/T 8923.1-2011, GB 8923.1-2011, GBT 8923.1-2011, GB/T8923.1-2011, GB/T 8923.1, GB/T8923.1, GB8923.1-2011, GB 8923.1, GB8923.1, GBT8923.1-2011, GBT 8923.1, GBT8923.1
Introduction of GB/T 8923.1-2011
This Part of GB/T 8923 specifies a series of rust grades and preparation grades of steel surfaces (substrate) (see Chapters 2 and 3, respectively). The various grades are defined by written descriptions together with photographs that are representative examples as described in words. It is applicable to hot-rolled steel surfaces prepared for painting by methods such as blast-cleaning, hand and power tool cleaning and flame cleaning, although these methods rarely lead to comparable results. Essentially, these methods are intended for hot-rolled steel, but blast-cleaning methods, in particular, could also be used on cold-rolled steel of sufficient thickness to withstand any deformation caused by the impact of the abrasive or the effects of power tool cleaning. This Part is also applicable to steel substrates (surface) that show residues of firmly adhering paint and other foreign matter (see Note 1 in 3.1) in addition to residual mill scale. Note: The preparation grades of previously painted steel surfaces after only localized removal of paint coatings form the subject of ISO 8501-2. This Part relates the cleanliness of the surface to its visual appearance. In many instances, this is sufficient for the purpose but for coatings likely to be exposed to severe environments, such as water immersion and continuous condensation conditions, consideration should be given to testing for soluble salts and other invisible contaminants on the visually clean surface by the physical and chemical methods which form the subjects of the various parts of ISO 8502. The roughness characteristics of the surface should also be considered by reference to the various parts of ISO 8503.
Contents of GB/T 8923.1-2011
1 Scope 2 Rust Grades 3 Preparation Grades 4 Procedure for Visual Assessment of Steel Substrates 5 Photographs Appendix A (Informative) Representative Photographic Examples of the Change of Appearance Imparted to Steel when Blast-cleaned with Different Abrasives Appendix NA (Informative) Comparison List of the International Standards and Their Corresponding National Standard Applying to Steel Surface Treatment Before the Application of Coating and Related Products References
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Keywords:
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