GB/T 25149-2010 English PDFUS$139.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 25149-2010: Quality test method of passive film on carbon steel of chemical cleaning for industrial equipment -- Red dot method Status: Valid
Basic dataStandard ID: GB/T 25149-2010 (GB/T25149-2010)Description (Translated English): Quality test method of passive film on carbon steel of chemical cleaning for industrial equipment -- Red dot method Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: G90 Classification of International Standard: 71.120.01 Word Count Estimation: 6,638 Date of Issue: 2010-09-26 Date of Implementation: 2011-03-01 Quoted Standard: GB/T 603; GB/T 6682 Regulation (derived from): National Standard Approval Announcement 2010 No.6 (Total No.161) Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies the carbon steel pipe fittings, chemical cleaning equipment passivation film quality test conditions, test methods and test procedures. This standard applies to carbon steel pipe fittings, equipment, chemical cleaning of the passivation film quality testing. GB/T 25149-2010: Quality test method of passive film on carbon steel of chemical cleaning for industrial equipment -- Red dot method---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Quality test method of passive film on carbon steel of chemical cleaning for industrial equipment.Red dot method ICS 71.120.01 G90 National Standards of People's Republic of China Industrial equipment, chemical cleaning passivation film quality carbon steel Red Dot Test Method Method Issued on. 2010-09-26 2011-03-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released ForewordThe standard proposed by China Petroleum and Chemical Industry Association. This standard by the National Standardization Technical Committee of Chemical Machinery and Equipment (SAC/TC429) centralized. This standard was drafted. Bluestar Environmental Engineering Co., Ltd., China National Bluestar (Group) Co., Ltd. Drafters of this standard. Li Defu, Liu Yang, Wang Jianjun, Chen Enhui, Wangshuang Tian, Zhang Lianghu, Wong Tai, Zhang Ji Yu. Industrial equipment, chemical cleaning passivation film quality carbon steel Red Dot Test Method Method1 ScopeThis standard specifies the carbon steel pipe fittings, equipment, chemical cleaning passivation film quality test conditions, test methods and test procedures. This standard applies to carbon steel pipe fittings, equipment, chemical cleaning passivation film quality testing.2 Normative referencesThe following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard. GB/T 603 chemical reagent in test methods - Preparations with Laboratory use specifications and test methods GB/T 6682 Analysis3 Terms and DefinitionsThe following terms and definitions apply to this standard. 3.1 Passivation film passivefilm To prevent the metal surface to be cleaned twice rust, a temporary protective film by chemical metal surface. 3.2 Red dot liquid reddotliquid Designed to test carbon steel surface passivation film quality of the test solution. Solution itself is blue, red spots will form a passivation film is destroyed. 3.3 Cleaning system cleaningsystem While accepting cleaning device or system is composed of a plurality of devices, components and piping component. 4. Summary Carbon steel surface passivation after dropping liquid on the red dot, red dot fluid can damage the passive film, the following reaction. Fe Cu2 = Cu ↓ Fe2. After the destruction of the passive film formed elemental copper red spots, red spots with a stopwatch record was changed from blue to red time, according to the disappearance of the blue to red Color length of time to determine the quality of the passivation film.5 Reagents and materials5.1 Test methods used in the reagents and water, did not indicate when the other requirements, refer to analytically pure reagents and GB/T 6682 provisions of the three steam Distilled water. Solution preparation and products 5.2 Test required, in the absence of other provisions indicated, was prepared according to the provisions of GB/T 603's. 5.3 Reagents and materials required for the test are as follows. --- Copper sulfate pentahydrate; ---Sodium chloride; --- Hydrochloric acid. 0.1mol/L; ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 25149-2010_English be delivered?Answer: Upon your order, we will start to translate GB/T 25149-2010_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.Question 2: Can I share the purchased PDF of GB/T 25149-2010_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 25149-2010_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.Question 3: Does the price include tax/VAT?Answer: Yes. 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