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GB/T 30790.1-2014: Paints and varnishes -- Corrosion protection of steel structures by protective paint systems -- Part 1: General introduction Delivery: 9 seconds. True-PDF full-copy in English & invoice will be downloaded + auto-delivered via email. See step-by-step procedure Status: Valid
Similar standardsGB/T 30790.1-2014: Paints and varnishes -- Corrosion protection of steel structures by protective paint systems -- Part 1: General introduction---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT30790.1-2014 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 87.020 G 50 Paints and varnishes – Corrosion protection of steel structures by protective paint systems - Part 1. General introduction (ISO 12944-1.1998, MOD) Issued on: JULY 8, 2014 Implemented on: DECEMBER 1, 2014 Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration of the People's Republic of China. Table of ContentsForeword ... 3 1 Scope ... 5 2 Normative references ... 7 3 Terms and definitions ... 8 4 General considerations and requirements ... 9 5 Health and safety and environmental protection ... 10 6 Information on the other parts of GB/T 30790 ... 11 Annex A (Informative) Guidelines for using ISO 12944 for a given project 13 Annex B (Informative) Technical differences between this Part and ISO 12944-1.1998 and their reasons ... 14 Bibliography ... 15ForewordGB/T 30790, Paints and varnishes – Corrosion protection of steel structures by protective paint systems, comprises 8 parts. -- Part 1. General introduction; -- Part 2. Classification of environments; -- Part 3. Design considerations; -- Part 4. Types of surface and surface preparation; -- Part 5. Protective paint systems; -- Part 6. Laboratory performance test methods; -- Part 7. Execution and supervision of paint work; -- Part 8. Development of specification for new work and maintenance. This Part is Part 1 of GB/T 30790. This Part was drafted in accordance with the rules given in GB/T 1.1-2009. This Part was redrafted by adopting ISO 12944-1.1998, Paints and varnishes – Corrosion protection of steel structures by protective paint systems – Part 1. General introduction. This Part has technical differences from ISO 12944-1.1998. The clauses concerning these differences are marked with vertical single lines (|) in the page margins. Annex B gives the list of corresponding technical differences and their reasons. This Part was proposed by China Petroleum and Chemical Industry Federation. This Part shall be under the jurisdiction of National Technical Committee 5 on Paints and Pigments of Standardization Administration of China (SAC/TC 5). The drafting organizations of this Part. CNOOC Changzhou Paint and Chemicals Research Institute, Jotun Paint (Zhangjiagang) Co., Ltd., Beijing BIAM New Materials and Technological Engineering Co., Ltd., Yung Chi Paint and Varnish MFG Co., Ltd., Shenzhen Grandland Decoration Group Co., Ltd., AkzoNobel Protective Paint (Suzhou) Co., Ltd., Marine Chemical Research Institute, COSCO Kansai Paint and Chemicals Co., Ltd., Shandong Puntium Paint Co., Ltd., Hempel (China) Co., Ltd., Zhejiang Feijing Paint Co., Ltd., Beijing Hongshi Paint Co., Ltd., Yejian New Material Co., Ltd., Taicang High Polymer Materials Research and Development Center Co., Ltd. Paints and varnishes – Corrosion protection of steel structures by protective paint systems - Part 1. General introduction1 Scope1.1 GB/T 30790 deals with the corrosion protection of steel structures by protective paint systems. 1.2 GB/T 30790 covers only the corrosion-protective function of paint systems. Other protective functions, like the protection against. -- microorganisms (marine fouling, bacteria, fungi, etc.), -- chemicals (acids, alkalis, organic solvents, gases, etc.), -- mechanical action (abrasion, etc.) and -- fire are not covered by GB/T 30790. 1.3 The field of application is characterized by. -- the type of structure, -- the type of surface and surface preparation, -- the type of environment, -- the type of protective paint system, -- the type of work and -- the durability of the protective paint system. Although GB/T 30790 does not cover all types of structure, surface and surface preparation, it may, by agreement, also be applied to those cases which are not covered by the standard. The various aspects of the field of application are described in more detail in 1.3.1 to -- coatings of more than 2 mm dry-film thickness, -- linings of tanks, -- products for the chemical treatment of surfaces (e.g. phosphating solutions). 1.3.5 Type of work GB/T 30790 covers both new work and maintenance. 1.3.6 Durability of the protective paint system GB/T 30790 considers three different durability ranges (low, medium and high). See 3.5 and Clause 4. The durability range is not a “guarantee time”.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition dated applies to this document. For undated references, the latest edition of the referenced documents (including all amendments) applies to this document. ISO 4628-1, Paints and varnishes – Evaluation of degradation of paint coatings – Designation of intensity, quantity and size of common types of defect – Part 1. General principles and rating schemes. ISO 4628-2, Paints and varnishes – Evaluation of degradation of paint coatings – Designation of intensity, quantity and size of common types of defect – Part 2. Designation of degree of blistering. ISO 4628-3, Paints and varnishes – Evaluation of degradation of paint coatings – Designation of intensity, quantity and size of common types of defect – Part 3. Designation of degree of rusting. ISO 4628-4, Paints and varnishes – Evaluation of degradation of paint coatings – Designation of intensity, quantity and size of common types of defect – Part 4. Designation of degree of cracking. ISO 4628-5, Paints and varnishes – Evaluation of degradation of paint coatings – Designation of intensity, quantity and size of common types of defect – Part 5. Designation of degree of flaking. EN 10025-2, Hot-rolled products of non-alloy structural steels – Technical delivery conditions. -- measures against harmful effects of fumes, dust, vapours and noise, as well as fire hazards; -- protection of the body, including the eyes, the skin, the ears and the respiratory system; -- protection of water and soil during corrosion protection work; -- recycling of materials and waste disposal.6 Information on the other parts of GB/T 307906.1 GB/T 30790.2 describes the corrosion stresses produced by the atmosphere, by different types of water and by soil. It defines atmospheric-corrosivity categories and indicates the corrosion stresses to be expected in situations where steel structures are immersed in water or buried in soil. The corrosion stresses to which a steel structure is exposed represent one essential parameter governing the selection of appropriate protective paint systems in accordance with GB/T 30790.5. 6.2 GB/T 30790.3 gives information on basic design criteria for steel structures for the purpose of improving their resistance to corrosion. It gives examples of suitable and unsuitable designs, indicating, with the help of diagrams, which structural elements and combinations of elements are likely to cause accessibility problems during surface preparation work and when applying, inspecting and maintaining paint systems. In addition, design features which will facilitate the handling and transport of steel structures are discussed. 6.3 GB/T 30790.4 describes different types of surface to be protected and gives information on mechanical, chemical and thermal surface preparation methods. It deals with surface preparation grades, surface profile (roughness), assessment of prepared surfaces, temporary protection of prepared surfaces, preparation of temporarily protected surfaces for further coatings, preparation of existing metal coatings, and environmental aspects. As far as possible, reference is made to the basic National Standards on the surface preparation of steel substrates before application of paints and related products. GB/T 30790.4 is intended to be read in conjunction with GB/T 30790.5 and GB/T 30790.7. 6.4 GB/T 30790.5 describes different generic types of paints on the basis of their chemical composition and the type of film formation process. It gives examples of various protective paint systems that have proved suitable for structures exposed to corrosive stresses and corrosivity categories described in GB/T 30790.2, reflecting current knowledge on a world-wide scale. GB/T 30790.5 is intended to be read in conjunction with GB/T 30790.6. 6.5 GB/T 30790.6 specifies laboratory test methods that are to be used when theAnnex A(Informative) Guidelines for using ISO 12944 for a given project In order to ensure effective corrosion protection, it is important that suitable specifications are written for the project (GB/T 30790.8), taking the following items as the basis. a) Analyse or estimate the corrosivity of the environment in the area where the structure is located or is to be located (GB/T 30790.2). b) Establish any special conditions which may affect the choice of paint system to be used (GB/T 30790.5). c) Examine the design of the structure and make sure that corrosion traps have been avoided and adequate access has been provided for corrosion protection work. Avoid galvanic corrosion by insulating dissimilar metals from each other (GB/T 30790.3). d) For maintenance painting, assess the condition of the surface to be treated (GB/T 30790.4). e) Identify those paint systems with the required durability from those listed as being suitable for the relevant environment (GB/T 30790.5), or from results of laboratory performance testing if no long-term experience is available (GB/T 30790.6). f) Select, from the paint systems identified, the optimum one, taking into consideration the method of surface preparation which will be used (GB/T 30790.4). g) Make sure that damage to the environment and all health and safety risks are minimized (GB/T 30790.1, GB/T 30790.8). h) Draw up a plan of work and select a method of application (GB/T 30790.7). i) Establish a programme of inspections to be carried out during and after the work (GB/T 30790.7, GB/T 30790.8). j) Establish a maintenance programme covering the whole service life of the structure. NOTE. For detailed planning, see GB/T 30790.8, annexes C and D. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al. Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of English version of GB/T 30790.1-2014 be delivered?Answer: The full copy PDF of English version of GB/T 30790.1-2014 can be downloaded in 9 seconds, and it will also be emailed to you in 9 seconds (double mechanisms to ensure the delivery reliably), with PDF-invoice.Question 2: Can I share the purchased PDF of GB/T 30790.1-2014_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 30790.1-2014_English will be deemed to be sold to your employer/organization who actually paid for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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