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GB/T 19421-2008 English PDF

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GB/T 19421-2008: Test methods of crystalline layered sodium disilicate
Status: Valid

GB/T 19421: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 19421-2008English509 Add to Cart 4 days [Need to translate] Test methods of crystalline layered sodium disilicate Valid GB/T 19421-2008
GB/T 19421.1-2003English239 Add to Cart 2 days [Need to translate] Test methods of crystalline layered sodium disilicate -- Qualitative analysis of delta-crystalline layered sodium disilicate -- Method of X-ray diffractometer Obsolete GB/T 19421.1-2003

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Basic data

Standard ID GB/T 19421-2008 (GB/T19421-2008)
Description (Translated English) Test methods of crystalline layered sodium disilicate
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard G72
Classification of International Standard 71.100.40
Word Count Estimation 22,213
Date of Issue 2008-05-28
Date of Implementation 2008-12-01
Older Standard (superseded by this standard) GB/T 19421.1-2003; GB/T 19421.2-2003; GB/T 19421.3-2003; GB/T 19421.4-2003; GB/T 19421.5-2003; GB/T 19421.6-2003; GB/T 19421.7-2003; GB/T 19421.8-2003; GB/T 19421.9-2003; GB/T 19421.10-2003; GB/T 19421.11-2003; GB/T 19421.12-2003
Regulation (derived from) National Standard Approval Announcement 2008 No.9 (Total No.122)
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 detergent additives crystalline layered sodium silicate �� phase X -ray diffraction analysis of the legal and whiteness, pH value, calcium exchange capacity, magnesium exchange capacity, Loss on ignition, wet water storage, test methods and other indicators of magnesia, ferric oxide, sodium oxide, silica, calcium oxide. This standard applies to the determination of detergent with layered crystalline sodium disilicate index products. Also applies to some indicators measured detergents other types of silicate products.

GB/T 19421-2008: Test methods of crystalline layered sodium disilicate

---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 crystalline layered sodium disilicate ICS 71.100.40 G72 National Standards of People's Republic of China Replacing GB/T 19421.1 ~ 19421.12-2003 Test methods of crystalline layered sodium disilicate Posted 2008-05-28 2008-12-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 δ layered crystal sodium disilicate phase qualitative analysis of X-ray diffraction method 2 Determination of whiteness 3 5 Determination of 6 pH value of 4 7 EDTA volumetric method for the determination of calcium exchange capacity 5 8 EDTA volumetric method for the determination of magnesium exchange capacity 6 Determination of loss on ignition - Gravimetric method 9 8 Determination of wet storage level 910 gravimetric method 11 phenanthroline  morpholino colorimetric determination of iron oxide content of 9 Determination of sodium oxide content volumetric method 12 10 13 potassium fluosilicate volumetric method for determination of silicon dioxide content 11 Atomic absorption spectrophotometry 14 12 calcium oxide content 15 Atomic Absorption Spectrometry Determination of magnesium oxide content of 14 Test results reporting requirements 15 16 Appendix A (Informative Appendix) δ layered crystal sodium disilicate phase X-ray diffraction pattern 16 Calculation Appendix B (normative) minimum stability coefficient of variation of 17 Appendix C (Informative Appendix) GGX-6 atomic absorption spectrophotometer operating parameter 18

Foreword

This standard is GB/T 19421.1 ~ 19421.12-2003 integration amendments. This standard replaces the following national standards. GB/T 19421.1-2003 "Test methods of crystalline layered sodium disilicate δ layered crystal sodium disilicate phase qualitative analysis of X-ray diffraction Radio instrument law "; GB/T 19421.2-2003 "Determination crystalline layered sodium silicate Test Method Whiteness"; GB/T 19421.3-2003 "Determination crystalline layered sodium silicate Test Method for pH value"; "Determination of calcium exchange capacity of crystalline layered sodium silicate test EDTA volumetric method" GB/T 19421.4-2003; "Determination of magnesium exchange capacity of crystalline layered sodium silicate test EDTA volumetric method" GB/T 19421.5-2003; GB/T 19421.6-2003 "crystalline layered sodium silicate Test Method for Weight Determination loss on ignition"; GB/T 19421.7-2003 "crystalline layered sodium silicate test gravimetric method for the determination of moisture water"; GB/T 19421.8-2003 "Test methods of crystalline layered sodium disilicate  morpholino phenanthroline colorimetric determination of iron oxide content"; "Determination of sodium oxide content of crystalline layered sodium silicate test volumetric method" GB/T 19421.9-2003; "Determination of silica content crystalline layered sodium silicate Test Method potassium fluosilicate volumetric method" GB/T 19421.10-2003; GB/T 19421.11-2003 "crystalline layered sodium silicate test atomic absorption spectrophotometric determination of calcium oxide content"; GB/T 19421.12-2003 "crystalline layered sodium silicate test atomic absorption spectrophotometry magnesium oxide content." This standard and GB/T 19421.1 ~ 19421.12-2003 "crystalline layered sodium silicate test methods" compared to the main changes are as follows. --- Original standard measuring method used in the present consolidated standard Chapter 4 ~ Chapter 15; --- Delete "layered crystalline sodium disilicate whiteness" term; --- Increase "δ phase X-ray diffractometer," "calcium exchange capacity," "magnesium exchange capacity", "loss on ignition", "wet storage level" and other five the term; --- Fixed some of the original standard editorial errors. Appendix B of this standard is a normative appendix, Appendix A, Appendix C is informative appendix. The standard proposed by China National Light Industry Council. This standard by the National Standardization Technical Committee surfactant and detergent. This standard was drafted. National Cleaning Products Quality Supervision and Inspection Center (Taiyuan), Shandong Sheng Tong Group Co., Ltd., Shandong Aluminum Research Institute Co., Ltd., China Daily Chemical Industry Institute. The main drafters of this standard. Yan Fang, WANG Wan-xu, Xu Haitao, Yun-Xia Wang, Su Xianrui, Zhang Shugui. This standard replaces the standards previously issued as follows. --- GB/T 19421.1 ~ 19421.12-2003. Test methods of crystalline layered sodium disilicate

1 Scope

This standard specifies the detergent builder layered crystalline δ phase X-ray diffraction analysis of the legal and whiteness sodium disilicate, pH, calcium Measuring exchange capacity, magnesium exchange capacity, loss on ignition, wet storage level, ferric oxide, sodium oxide, silicon dioxide, calcium oxide, magnesium oxide and other indicators Test methods. This standard applies to detergents indicators crystalline layered silicate product determination, but also applies to other types of silicic acid detergent Some indicators measuring salt products.

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 9086-2007 standard for white color and photometry GB/T 13173.1-1991 detergent sample division method (eqv ISO 607. 1980) Preparation QB/T 2739-2005 detergent commonly used test methods for analysis of titration (volumetric analysis) with the test solution

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 δ-phase crystal at a given wavelength of X-ray radiation, showing a characteristic diffraction pattern of crystalline layered sodium disilicate δ crystal phase, in order And the comparison of the data of the test substance. 3.2 Surface material in the visible region, the object is completely relative diffuse reflectance (standard white) the ratio of the size of the radiant energy, expressed as a percentage. 3.3 At a certain temperature and alkaline conditions, the product may be a solution of the sodium ions in the calcium ion exchange capacity. 3.4 At a certain temperature and alkaline conditions, the product may be sodium ion exchange of magnesium in solution volume. 3.5 Burning sample mass reduction percentage at high temperatures. 3.6 Contained in the sample water.

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