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Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 6580-2021: Glass - Resistance to attack by a boiling aqueous solution of mixed alkali - Method of test and classification Status: Valid GB/T 6580: Historical versions
Basic dataStandard ID: GB/T 6580-2021 (GB/T6580-2021)Description (Translated English): Glass - Resistance to attack by a boiling aqueous solution of mixed alkali - Method of test and classification Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: N64 Word Count Estimation: 14,135 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 6580-2021: Glass - Resistance to attack by a boiling aqueous solution of mixed alkali - Method of test and classification---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. Glass - Resistance to attack by a boiling aqueous solution of mixed alkali - Method of test and classification ICS 81.040.01 CCSN64 National Standards of People's Republic of China Replace GB/T 6580-1997 Corrosion resistance of glass with boiling mixed alkali aqueous solution Test method and classification (ISO 695.1991,MOD) Released on 2021-08-20 2022-03-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee ForewordThis document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules of Standardization Documents" Drafting. This document replaces GB/T 6580-1997 "Test method and classification of corrosion resistance of glass in boiling mixed alkali aqueous solution", and Compared with GB/T 6580-1997, in addition to structural adjustments and editorial changes, the main technical changes are as follows. --- Modify the standard name "Erosion" to "Erosion" (see cover); ---Added the content of this document applicable to various glass and ceramic alkali resistance tests (see Chapter 1, Chapter 1 of the.1997 edition); ---Added references to missing original documents (see Chapter 2, Chapter 2 of the.1997 edition); ---Added terms and definitions (see Chapter 3); ---Modify pure water to distilled water or deionized water (see 5.1, 4.1 in.1997 edition); ---The style and size of the container have been increased (see 6.1, 5.1 of the.1997 edition); ---Modified the heating device (see 6.12, 5.12 of the.1997 edition); ---The sample basket has been added (see 6.13); ---Modified the sample preparation of glass products (see 7.1, 6.1 of the.1997 edition); ---Modified the glass material sample preparation (see 7.2, 6.2 of the.1997 edition); ---Added the description of alkali resistance of glass material (see 7.2); ---The number of samples has been increased (see 7.3); --- Increased experimental bias (see Chapter 9). This document uses the redrafting method to modify and adopt ISO 695.1991 "Test method for resistance to corrosion of glass in boiling mixed alkali aqueous solution and Classification. Compared with ISO 695.1991, this document has many adjustments in structure. Appendix A gives the rules and regulations of this document and ISO 695.1991. List of serial numbers. Compared with ISO 695.1991, this document has technical differences. Appendix B gives a list of corresponding technical differences and their reasons. Compared with ISO 695.1991, this document has made the following editorial changes. ---Informative Appendix A and Appendix B have been added. Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents. This document was proposed by the China National Light Industry Council. This document is under the jurisdiction of the National Glass Instrument Standardization Technical Committee (SAC/TC178). This document was drafted by. Beijing Institute of Pharmaceutical Packaging Materials. The main drafters of this document. Yuan Chunmei, Du Yuhai, Liang Ye. This document was first published as GB/T 6580-1986 in 1986, and was revised for the first time in.1997, and this is the second revision. Corrosion resistance of glass with boiling mixed alkali aqueous solution Test method and classification1 ScopeThis document specifies a method for testing the corrosion resistance of glass with a boiling mixture of sodium carbonate and sodium hydroxide aqueous solution. Alkali resistance of glass It is expressed by the mass loss per unit surface area, and the corrosion resistance of the boiling mixed alkali aqueous solution is classified according to the amount of mass loss. This document is applicable to all kinds of glass and ceramics.2 Normative referencesThe contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations Only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document. document. GB/T 620 Chemical reagent hydrofluoric acid GB/T 622 Chemical reagent hydrochloric acid GB/T 629 chemical reagent sodium hydroxide GB/T 639 Chemical reagent anhydrous sodium carbonate GB/T 678 Chemical reagent ethanol (anhydrous ethanol) GB/T 686 Chemical reagent acetone GB/T 6682 Analytical laboratory water specifications and test methods (GB/T 6682-2008, ISO 3696.1987, MOD) GB/T 15724 Laboratory glass beaker (GB/T 15724-2008, ISO 3819.1985, NEQ) GB/T 28212 Laboratory glass instrument condenser (GB/T 28212-2011, ISO 4799.1978, NEQ) ISO 683-13 Heat-treatable steel, alloy steel and chip-free steel Part 13.Refined stainless steel (Heat-treatable steels,aloysteelsandfree-cuttingsteels-Part 13.Wroughtstainlesssteels)3 Terms and definitionsThere are no terms and definitions that need to be defined in this document.4 PrincipleFor glass samples with a total surface area of 10cm2~15cm2, use an equal volume of sodium carbonate with a concentration of 0.5mol/L and 1mol/L hydroxide The boiling mixed solution of sodium sulfide was corroded for 3h, and the mass loss per unit surface area of the glass sample was measured.5 Reagents5.1 Distilled or deionized water It should meet the level 3 or higher experimental water specified in GB/T 6682. ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 6580-2021_English be delivered?Answer: Upon your order, we will start to translate GB/T 6580-2021_English as soon as possible, and keep you informed of the progress. 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Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.Question 5: Should I purchase the latest version GB/T 6580-2021?Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 6580-2021 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically. |