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GB/T 1838-2008 English PDF

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GB/T 1838-2008: Test methods of tin coating mass for electrolytic tinplate
Status: Valid

GB/T 1838: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 1838-2008English279 Add to Cart 3 days [Need to translate] Test methods of tin coating mass for electrolytic tinplate Valid GB/T 1838-2008
GB/T 1838-1995English279 Add to Cart 3 days [Need to translate] Tin coated sheet (strip)--Tin coating mass testing method Obsolete GB/T 1838-1995
GB 1838-1980English199 Add to Cart 2 days [Need to translate] Determination of the weight of tin coating plated on steel plate (or tape) Obsolete GB 1838-1980

PDF similar to GB/T 1838-2008


Standard similar to GB/T 1838-2008

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Basic data

Standard ID GB/T 1838-2008 (GB/T1838-2008)
Description (Translated English) Test methods of tin coating mass for electrolytic tinplate
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard H25
Classification of International Standard 77.040.99
Word Count Estimation 12,177
Date of Issue 2008-08-19
Date of Implementation 2009-04-01
Older Standard (superseded by this standard) GB/T 1838-1995
Quoted Standard GB/T 2520; GB/T 8170
Adopted Standard ISO 11949-1995 (E), MOD
Regulation (derived from) National Standard Approval Announcement 2008 No.14 (Total No.127)
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 principle of measuring the amount of tin-plated cold-rolled steel sheet plated with tin volumetry and coulometry, calculate test results and test reports, test conditions and procedures, test solution and materials, , test device sample. Appendix A gives X-ray fluorescence measurements tin content. This standard applies to the determination of the amount of cold rolled tin tin plating steel. Effective measurement range of the standard is to 0. 5g/m2 ~ 20g/m2, repeatability 0. 1g/m2. This standard test methods applicable to other test methods for calibrating the amount of tin.

GB/T 1838-2008: Test methods of tin coating mass for electrolytic tinplate

---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.
Test methods of tin coating mass for electrolytic tinplate ICS 77.040.99 H25 National Standards of People's Republic of China Replacing GB/T 1838-1995 Electrolytic Tin Plate Tin Test Method Posted 2008-08-19 2009-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The reference standard ISO 11949.1995 (E) "cold-rolled Tinplate" A "tin-plated steel plate (with) the amount of tin Determination of capacity" in Appendix Amendments. This standard replaces GB/T 1838-1995 "tin-plated steel plate (with) Tin Test Method." This standard and GB/T 1838-1995 compared to the main changes are as follows. --- Measured by the scope of application of tin plating and hot tin-plated steel sheet for the determination of the amount of modification of tin plate tin plating amount; --- Increased coulometry measurement range and repeatability. Effective measurement range by a 2.5g/m2 ~ 50g/m2 revised to 0.5g/m2 ~ 20g/m2; Determination section --- such as electroplating thick coating amount of tin added "and the amount of tin coating thickness (< 2.5g/m2) measured" and delete "Hot Tin Determination of the amount of the tin layer "; --- Increased duplex electrolysis in Coulomb law; --- Increased calibration and inspection provisions in the Coulomb law; --- Increase in Appendix A. Appendix A of this standard is an informative annex. The standard proposed by China Iron and Steel Association. This standard is under the jurisdiction of the National Steel Standardization Technical Committee. This standard was drafted. Wuhan Co., Ltd., Metallurgical Industry Information Standards Institute steel. The main drafters of this standard. Kay single army, Heming Wen, Feng Chao, Rencui Ying, Huang Bohua, ancient soldier level. This standard replaces the previous version of the release of case. --- GB 1838-1980, GB/T 1838-1995. Electrolytic Tin Plate Tin Test Method

1 Scope

This standard specifies the principle of measuring the amount of tin-plated cold-rolled steel sheet tin plating with the capacity and the coulometric method, the sample, the test solution and material test Means test conditions and procedures, test results and test reports to calculate. Appendix A gives a fluorescent X-ray measurement of the amount of tin. This standard applies to the determination of the amount of tin tin plating cold-rolled steel sheet. Determination of the effective scope of this standard is 0.5g/m2 ~ 20g/m2; repeatability of 0.1g/m2. Standard test methods applicable to other test methods for calibrating the amount of tin.

2 Normative references

The 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 2520 tin plated cold-rolled steel sheet GB/T 8170 numerical rounding rules

3 Capacity Act

3.1 Principle The tin layer surface of the sample is dissolved in hydrochloric acid with aluminum tin reduced to divalent tin, followed by carbon dioxide in the atmosphere with iodine protection Potassium standard solution was titrated. The volume and area of \u200b\u200bthe sample consumed standard solution, tin is calculated per unit area. 3.2 Sample Sampling methods and the number of samples according to GB/T 2520 or the technical conditions, technical agreement, the specimen diameter not less than 57mm Wafer. 3.3 Reagents and materials 3.3.1 Reagents and water. analytical grade reagents are used. Preparation of the solution and determination of the water used during the day must be boiled distilled Water, or deionized water. 3.3.2 hydrochloride. Take 750mL of hydrochloric acid (ρ = 1.16g/mL), diluted with water to 1000mL. 3.3.3 ferric chloride solution. 100g of hydrated ferric chloride was dissolved in 100mL of hydrochloric acid (ρ = 1.16g/mL), diluted with water to 1000mL. 3.3.4 potassium iodate standard solution [Ba (1/6KIO3) = 0.05mol/L]. Weigh 0.5g to 19g of sodium hydroxide and potassium iodide dissolved in water ; And potassium iodate at 180 ℃ drying to constant weight weighed 1.7835g dissolved in the solution until completely dissolved moved volumetric flask, dilute with water Diluted to 1000mL. The standard solution 1mL equivalent 0.002967g tin. 3.3.5 potassium iodate standard solution [Ba (1/6KIO3) = 0.025mol/L]. Weigh 0.5g to 1g of sodium hydroxide and potassium iodide dissolved in water ; And potassium iodate at 180 ℃ drying to constant weight weighed 0.9018g dissolved in the solution until completely dissolved moved volumetric flask, dilute with water Diluted to 1000mL. The standard solution 1mL equivalent 0.001484g tin. 3.3.6 Starch solution. 1g soluble starch was added 10mL water to prepare a suspension, add boiling water to 100mL, boiled 2min ~

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