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GB/T 15343-2020 English PDF

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GB/T 15343-2020: Methods for chemical analysis of talc
Status: Valid

GB/T 15343: Evolution and historical versions

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
GB/T 15343-2020	English	929	Add to Cart	7 days [Need to translate]	Methods for chemical analysis of talc	Valid	GB/T 15343-2020
GB/T 15343-2012	English	RFQ	ASK	7 days [Need to translate]	Methods for chemical analysis of talc	Obsolete	GB/T 15343-2012
GB/T 15343-1994	English	RFQ	ASK	9 days [Need to translate]	Methods for chemical analysis of talc	Obsolete	GB/T 15343-1994

PDF similar to GB/T 15343-2020

Standard similar to GB/T 15343-2020

JC/T 2625 GB/T 15344 GB/T 23456 GB/T 15342 GB/T 15341

Basic data

Standard ID	GB/T 15343-2020 (GB/T15343-2020)
Description (Translated English)	Methods for chemical analysis of talc
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	Q64
Classification of International Standard	73.080
Word Count Estimation	50,588
Date of Issue	2020-06-02
Date of Implementation	2021-04-01
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration

GB/T 15343-2020: Methods for chemical analysis of talc

---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.
Methods for chemical analysis of talc ICS 73.080 Q64 National Standards of People's Republic of China Replace GB/T 15343-2012 Talc chemical analysis method 2020-06-02 release 2021-04-01 Implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword Ⅲ 1 Scope 1 2 Normative references 1 3 General 1 4 Sample 1 4.1 Taking the sample 1 4.2 Preparation of sample 2 5 Analysis method 2 5.1 Determination of loss on ignition 2 5.2 Determination of silica 2 5.3 Determination of total iron 8 5.4 Determination of aluminum oxide 11 5.5 Determination of titanium dioxide 13 5.6 Determination of calcium oxide and magnesium oxide 16 5.7 Determination of potassium oxide and sodium oxide (flame photometry) 18 5.8 Determination of hydrochloric acid insolubles 20 5.9 Determination of acid soluble iron 21 5.10 Determination of acid-soluble calcium 22 5.11 Determination of manganese 23 5.12 Determination of copper 25 5.13 Determination of acid solubles 28 5.14 Determination of water soluble matter and acidity and alkalinity 29 5.15 Determination of iron salts 31 5.16 Determination of arsenic 31 5.17 Determination of heavy metals 36 5.18 Determination of lead 37 5.19 Determination of potassium oxide, sodium oxide, calcium oxide, total iron (atomic absorption spectrometry) 41 5.20 Inductively coupled plasma emission spectrometry copper and manganese (method C) 43

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 15343-2012 "Talc Chemical Analysis Method". This standard is compared with GB/T 15343-2012, except for editing The main technical changes outside the sexual modification are as follows. --- Modify "crush the samples sent to the laboratory to all through the 1μm sieve" to "crush the samples sent to the laboratory to all Pass 1mm sieve" (see 4.2, 4.2 of the.2012 edition); --- Modify "Constant temperature water bath" to "Constant temperature water bath" (see Chapter 5, Chapter 5 of the.2012 edition); --- Removed the method summary of loss on ignition (see.2012 version 5.1.1); --- Modify "silica standard solution (B) (1mg solution contains 0.02mg silica)" to "silica standard solution (B) (1 mL of solution contains 0.02 mg of silica)" (see 5.2.1.2.15, 5.2.1.2.15 of the.2012 edition); --- Modify "potassium phthalate" to "potassium hydrogen phthalate" (see 5.2.3.2.10,.2012 version 5.2.3.2.10); --- Modify "add 10mL potassium fluoride solution (150g/L), stir with a plastic rod, add potassium chloride (solid) to saturation" to "to While stirring the plastic rod, add potassium chloride (solid) to saturation and add 10mL of potassium fluoride solution (150g/L)" (see 5.2.3.4.3, (5.2.3.4.3 of the.2012 version); --- Modify "95% ethanol" to "anhydrous ethanol" (see 5.8.2.3,.2012 version 5.8.2.3); --- Modify "for the determination of acid-soluble iron, calcium carbonate, and hydrochloric acid solubles." to "for the determination of acid-soluble iron, acid-soluble calcium." (see 5.8.4.1, 2012 version 5.8.4.1); --- Removed the visual colorimetry (C method) (see the.2012 version 5.18.3); --- Added flame atomic absorption spectrophotometry (C method) (see 5.18.3); --- Increased inductively coupled plasma emission spectrometry copper and manganese determination method (method C) (see 5.20). This standard was proposed by the China Building Materials Federation. This standard is under the jurisdiction of the National Non-metallic Mineral Products and Products Standardization Technical Committee (SAC/TC406). This standard was drafted by. Guilin Guiguang Talc Development Co., Ltd., Xianyang Nonmetallic Mine Research and Design Institute Co., Ltd., Guangxi Longsheng Huamei Talc Development Co., Ltd., National Quality Supervision and Inspection Center for Non-metallic Mineral Products, Suzhou Youkuang New Material Co., Ltd., Shun Foshan German District Quality and Technical Supervision Standards and Coding Institute, PLA Air Force Military Medical University. The main drafters of this standard. Zhu Meng, Chen Xiangbo, Wang Kaile, Zhao Weilin, Wang Yinmu, Liu Hui, Shang Zitian, Shang Cuifang, Li Ningning. The previous versions of the standard replaced by this standard are as follows. ---GB/T 15343-1994, GB/T 15343-2012. Talc chemical analysis method Warning---Persons using this standard should have experience in formal laboratories. This standard does not point out all possible safety issues. It is the user's responsibility to take appropriate safety and health measures and to ensure compliance with the conditions prescribed by the relevant national regulations.

1 Scope

This standard specifies the loss on ignition of talc products, silica, total iron, aluminum oxide, titanium dioxide, calcium oxide, magnesium oxide, potassium oxide, oxygen Sodium chloride, hydrochloric acid insolubles, acid soluble iron, acid soluble calcium, manganese, copper, acid solubles, water solubles and their acidity and alkalinity, iron salts, arsenic, heavy metals, lead, etc. Analytical methods of scientific composition. This standard applies to the analysis of the composition of natural talc blocks and talc powder.

2 Normative references

The following documents are essential for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For the cited documents without date, the latest version (including all amendments) applies to this document. GB/T 8170 Numerical Rounding Rules and Representation and Judgment of Limit Values GB/T 15341 talc GB/T 15342 Talc powder

3 General

3.1 In addition to moisture determination, the sample should be dried at 105 ℃ ~ 110 ℃ 2h, and placed in a desiccator to cool to room temperature before weighing samples. 3.2 Unless otherwise specified, the sample weighing should be accurate to 0.1mg. The constant weight in this method refers to the difference between the two weighings At 0.3mg. 3.3 The water used in this method, unless otherwise stated, in the analysis, only use distilled water or deionized water or equivalent purity. Place Unless otherwise specified, the solution is an aqueous solution. 3.4 The concentration of the solution is the quantity concentration of the substance or the mass (g/L) of the solute contained in the 1L solution. Such as (1 1), (1 2), (mn) etc. Refers to the ratio of solute volume to water volume. 3.5 Unless otherwise specified, only reagents that are confirmed as analytically pure or superior grade pure are used in the analysis, and reagents used for calibration are only used as Reference reagent or spectrally pure and high-purity reagent. Unless otherwise stated, the acid and ammonia used in the analysis are only used as concentrated acid or concentrated ammonia. 3.6 In addition to the determination of loss on ignition, all other measurements should be carried out at the same time as a blank test, and the results of the test should be corrected. 3.7 Unless otherwise specified, the value of the analysis result (%) is rounded to two decimal places according to GB/T 8170.

4 Sample

4.1 Selection of samples 4.1.1 The talc block sample shall be taken according to GB/T 15341. 4.1.2 The talc powder sample shall be taken according to GB/T 15342.

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