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YS/T 575.22-2021 English PDF (YST575.22-2007, YST575.22-2006)

YS/T 575.22-2021_English: PDF (YS/T575.22-2021)
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YS/T 575.22-2021English190 Add to Cart 0--9 seconds. Auto-delivery Methods for chemical analysis of bauxite - Part 22: Determination of hydroscopic moisture - Gravimetric method Valid YS/T 575.22-2021
YS/T 575.22-2007English199 Add to Cart 2 days [Need to translate] Methods for chemical analysis of bauxite. Part 22: Determination of hydroscopic moisture. Gravimetric method Obsolete YS/T 575.22-2007
YS/T 575.22-2006English239 Add to Cart 2 days [Need to translate] Methods for chemical analysis of bauxite. Determination of hydroscopic moisture in analytical samples. Gravimetric method Obsolete YS/T 575.22-2006


BASIC DATA
Standard ID YS/T 575.22-2021 (YS/T575.22-2021)
Description (Translated English) (Methods for chemical analysis of bauxite ores. Part 22: Determination of moisture content. Gravimetric method)
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard D42/Q52
Classification of International Standard 71.040.40
Word Count Estimation 8,840
Date of Issue 2021-03-05
Date of Implementation 2021-07-01
Older Standard (superseded by this standard) YS/T 575.22-2007
Drafting Organization Ministry of Industry and Information Technology
Administrative Organization Ministry of Industry and Information Technology
Regulation (derived from) Ministry of Industry and Information Technology Announcement No. 6 of 2021
Summary This standard specifies the method for the determination of air equilibrium moisture content in bauxite ore. This standard is applicable to the determination of the moisture content in the process of calibration loss on ignition or sample weighing operation of powdered bauxite ore, concentrate and other powdered bauxite ores. Determination range: ��5.00%. This standard does not apply to the wet water trade settlement process of powdered bauxite ore.

BASIC DATA
Standard ID YS/T 575.22-2007 (YS/T575.22-2007)
Description (Translated English) Methods for chemical analysis of bauxite. Part 22: Determination of hydroscopic moisture. Gravimetric method
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard Q52
Classification of International Standard 71.100.10
Word Count Estimation 5,513
Date of Issue 2007-11-14
Date of Implementation 2008-05-01
Older Standard (superseded by this standard) YS/T 575.22-2006
Quoted Standard YS/T 575.20
Drafting Organization Zhengzhou Research Institute Aluminum Corporation of China
Administrative Organization National Standardization Technical Committee of non-ferrous metals
Regulation (derived from) NDRC Notice No. 77 of 2007
Proposing organization National Nonferrous Metals Standardization Technical Committee
Issuing agency(ies) National Development and Reform Commission
Summary This standard specifies the analysis of bauxite samples of moisture content determination. This standard applies to analyzing samples of bauxite Determination of moisture content. Measuring range: �� 5. 0%. Also applied to 1075��C under burn reductions measurement result correction value for the dry basis.

BASIC DATA
Standard ID YS/T 575.22-2006 (YS/T575.22-2006)
Description (Translated English) Methods for chemical analysis of bauxite. Determination of hydroscopic moisture in analytical samples. Gravimetric method
Sector / Industry Nonferrous Metallurgy Industry Standard (Recommended)
Classification of Chinese Standard D42
Classification of International Standard 73.060
Word Count Estimation 6,688
Date of Implementation 2006-10-11
Older Standard (superseded by this standard) GB/T 3257.24-1999
Quoted Standard GB/T 3257.22-1999
Regulation (derived from) NDRC Notice No. 46 of 2006; NDRC Notice No. 77 of 2007


YS/T 575.22-2021 YS NONFERROUS MEAL INDUSTRY STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 71.040.40 CCS H 30 Replacing YS/T 575.22-2007 Methods for chemical analysis of bauxite - Part 22: Determination of hydroscopic moisture - Gravimetric method ISSUED ON: MARCH 05, 2021 IMPLEMENTED ON: JULY 01, 2021 Issued by: Ministry of Industry and Information Technology Table of Contents Foreword ... 3 Introduction ... 6 1 Scope ... 8 2 Normative references ... 8 3 Terms and definitions ... 8 4 Principle ... 8 5 Instruments ... 9 6 Specimen ... 9 7 Test steps ... 9 8 Test data processing ... 10 9 Precision ... 10 10 Test report ... 11 Foreword This document was drafted in accordance with the provisions of GB/T 1.1-2020 "Directives for standardization - Part 1: Rules for the structure and drafting of standardizing documents". This document is Part 22 of YS/T 575 "Methods for chemical analysis of bauxite". YS/T 575 has published the following parts: - Part 1: Determination of aluminium oxide content EDTA titrimetric method; - Part 2: Determination of silicon dioxide content - Gravimetric-molybdenum blue photometric method; - Part 3: Determination of silicon dioxide content molybdenum blue photometric method; - Part 4: Determination of iron oxide content - Dichromate titrimetric method; - Part 5: Determination of iron oxide content - Orthophenanthroline photometric method; - Part 6: Determination of titanium dioxide content - Diantipyrylmethane photometric method; - Part 7: Determination of calcium oxide content - Flame atomic absorption spectrophotometric method; - Part 8: Determination of magnesium oxide content - Flame atomic absorption spectrophotometric method; - Part 9: Determination of potassium oxide and sodium oxide content - Flame atomic absorption spectrophotometric method; - Part 10: Determination of manganese oxide content - Flame atomic absorption spectrophotometric method; - Part 11: Determination of chromium oxide content - Flame atomic absorption spectrophotometric method; - Part 12: Determination of vanadium pentoxide content - N-benzoy-N- phenylhydroxylamine photometric method; - Part 13: Determination of zinc content flame - Atomic absorption spectrophotometric method; - Part 14: Determination the total content of rare earth oxide - Tribromo-arsenazo Methods for chemical analysis of bauxite - Part 22: Determination of hydroscopic moisture - Gravimetric method 1 Scope This document specifies the method for determining the air-equilibrium hygroscopic moisture content in bauxite. This document is applicable to the determination of the hygroscopic moisture content of air-equilibrium hygroscopic moisture in the calibration loss on ignition or sample weighing operation of powdered bauxite ores, such as bauxite ore and concentrate, which has a determination range of ≤ 5.00%. This document is not applicable to the hygroscopic moisture trade settlement process of powdered bauxite ores. 2 Normative references The contents of the following documents constitute essential clauses of this document through normative references in the text. Among them, for dated references, only the version corresponding to the date applies to this document; for undated references, the latest version (including all amendments) applies to this document. GB/T 8170 Rules of rounding off for numerical values and expression and judgement of limiting values YS/T 575.20 Methods for chemical analysis of bauxite ores - Part 20: Preparation of pre-dried samples 3 Terms and definitions There are no terms and definitions that need to be defined in this document. 4 Principle The specimen that has been left to stand in the air (so that the water content in the specimen reaches equilibrium with the water content in the air) is placed in a 110 °C ± 5 °C oven and dried, until the mass remains constant. The mass loss before and after drying is the air-equilibrium moisture content. 5 Instruments 5.1 Plate: Flat bottom, the bottom area of which shall be greater than 100 cm2. 5.2 Dryer: Contains activated alumina (heated at 300 °C ± 10 °C for 5 h before use) or color-changing silica gel (heated at 120 °C ± 5 °C for 4 h before use). 5.3 Oven: The temperature can be controlled at 110 °C ± 5 °C; air flow is guaranteed in the oven. 5.4 Analytical balance: The actual graduation value is 0.0001 g. 5.5 Weighing bottle: It has a lid, which is large enough to hold the required specimen amount. 6 Specimen The sample is ground to pass through a 150 μm standard sieve. 7 Test steps 7.1 Test material Take about 10 g of the specimen (6). Place it on a plate (5.1). Spread it evenly and let it stand in the air in the laboratory for not less than 2 h. 7.2 Parallel test Perform two tests in parallel and take the average value. 7.3 Determination 7.3.1 Place the weighing bottle (5.5) in an oven (5.3) at 110 °C ± 5 °C for 1 h. Take it out and place it in a desiccator (5.2) to cool to room temperature. Gently open the lid and quickly cover it. Weigh it, to an accuracy of 0.0002 g. Record the mass (m0). 7.3.2 Use an analytical balance (5.4) to weigh 2.0 g ± 0.1 g of the pre-air-equilibrium sample (7.1). Place it in a weighing bottle (7.3.1), that has been dried and weighed to a constant weight. Record the mass (m1). 7.3.3 Place the opened weighing bottle together with the lid in an oven (5.3). Dry at 110 °C ± 5 °C for 1 h. Take it out. Cover the weighing bottle. Place it in a dryer (5.2) to ......


YS/T 575.22-2007 Methods for chemical analysis of bauxite.Part 22. Determination of hydroscopic moisture.Gravimetric method ICS 71.100.10 Q52 People's Republic of China Nonferrous Metals Industry Standard Replacing YS/T 575.22-2006 Methods for chemical analysis of bauxite - Part 22. Determination of the content of water in the wet Gravimetric method Posted 2007-11-14 2008-05-01 implementation National Development and Reform Commission issued Foreword YS/T 575-2007 "chemical analysis of bauxite -" Is the YS/T 575-2006 (formerly GB/T 3257-1999) amendments A total of 24 parts. --- Part 1. aluminum oxide content - EDTA titration --- Part 2. silica content - Gravimetric - molybdenum blue spectrophotometry --- Part 3. Determination of silica content molybdenum blue photometric --- Part 4. iron oxide content - Potassium dichromate titration --- Part 5. Determination of iron oxide content phenanthroline spectrophotometry --- Part 6. Determination of titanium dioxide content di Zhao DAM spectrophotometry --- Part 7. calcium oxide content - Flame Atomic Absorption Spectrometry --- Part 8. magnesium oxide content - Flame Atomic Absorption Spectrometry --- Part 9. potassium hydroxide, sodium oxide content - Flame Atomic Absorption Spectrometry --- Part 10. Determination of manganese oxide content by flame atomic absorption spectrometry --- Part 11. chromium oxide content - Flame Atomic Absorption Spectrometry --- Part 12. Determination of vanadium pentoxide content of benzoyl phenylhydroxylamine photometric method --- Part 13. Determination of zinc content by flame atomic absorption spectrometry --- Part 14. Determination of total rare earth oxide Tribromoarsenazo spectrophotometry --- Part 15. Determination of gallium oxide content of rhodamine B extraction spectrophotometry --- Part 16. Determination of phosphorus pentoxide molybdenum blue photometric --- Part 17. Determination of sulfur content - Combustion - iodometric method --- Part 18. Determination of total carbon content - Combustion - non-aqueous titration --- Part 19. Determination of burning weight reduction method --- Part 20. pre-dried sample preparation --- Part 21. Determination of organic carbon titration --- Part 22. Analysis of samples moisture intrudes content - Gravimetric method --- Part 23. Determination of the chemical composition of the X-ray fluorescence spectrometry --- Part 24. Determination of carbon and sulfur content infrared absorption method Part is divided into 22 sections. The partial replacement of YS/T 575.22-2006 (formerly GB/T 3257.24-1999). This section is amended to YS/T 575.22-2006, compared with YS/T 575.22-2006, the main changes are as follows. --- The drying temperature of the sample unified 110 ℃ ± 5 ℃; --- Increased precision. The non-ferrous metal part by the National Standardization Technical Committee and centralized. This part of the Aluminum Corporation of China Zhengzhou Research Institute is responsible for drafting. This section drafted by the Aluminum Corporation of China Zhengzhou Research Institute. The main drafters of this section. Zhang North Korea, Guo Yongheng. The non-ferrous metal part by the National Standardization Technical Committee responsible for the interpretation. This part of the standard replaces the previous editions are. --- YS/T 575.22-2006 (formerly GB/T 3257.24-1999). Methods for chemical analysis of bauxite - Part 22. Determination of the content of water in the wet Gravimetric method 1 Scope This section specifies the content of the determination of water in wet bauxite samples were analyzed. This section applies to the measurement sample analysis in the content of water in the wet bauxite. Measuring range. ≤5.0%. Also applied to The measurement results at 1075 ℃ burn reductions corrected to dry basis value. Note. additional water should be considered when measuring its pre-dried samples were prepared by YS/T 575.20 requirements. 2 Normative references The following documents contain provisions which, through reference in this text, constitute provisions of this part. For dated references, subsequent Amendments (not including errata content) or revisions do not apply to this section, however, encourage the parties to this part of the research agreement Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this section. Dried sample preparation YS/T 575.20 Methods for chemical analysis of bauxite in advance 3 PRINCIPLE OF THE METHOD Samples at 110 ℃ ± 5 ℃ air drying, record loss of quality. 4 Reagents Desiccant. Activated alumina, magnesium perchlorate or phosphorus pentoxide (activated alumina before use should be 300 ℃ ± 10 ℃ heated living Of). 5 Instruments 5.1 weighing bottle. glass or metal, having a diameter of about 50mm. 5.2 plate. flat, bottom plate area of about 20cm2, for balance within the air laboratory samples. 5.3 Oven. temperature can be controlled at 110 ℃ ± 5 ℃. 5.4 dryer. 6 Sample The sample was ground with a mortar through 150μm sieve and air dried samples. Take about 10g of the sample into the dish (5.2), and Spread evenly and in the air within the laboratory balance less than 2h. 7 Procedure 7.1 Sample Weigh 2.0g sample (6), accurate to 0.0001g. 7.2 Determination of the number of On the same sample should be independently measured twice and averaged. ......

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