GB/T 37667-2019 English PDF

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GB/T 37667-2019: Determination of iron, calcium, magnesium, potassium, sodium, manganese, phosphorus, aluminum, titanium, strontium and barium in coal ash - Inductively coupled plasma-atomic emission spectrometry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 37667-2019	199	Add to Cart	3 days	Determination of iron, calcium, magnesium, potassium, sodium, manganese, phosphorus, aluminum, titanium, strontium and barium in coal ash - Inductively coupled plasma-atomic emission spectrometry	Valid

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Basic data

Standard ID: GB/T 37667-2019 (GB/T37667-2019)
Description (Translated English): Determination of iron, calcium, magnesium, potassium, sodium, manganese, phosphorus, aluminum, titanium, strontium and barium in coal ash - Inductively coupled plasma-atomic emission spectrometry
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D21
Classification of International Standard: 73.040
Word Count Estimation: 10,170
Date of Issue: 2019-06-04
Date of Implementation: 2020-01-01
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 37667-2019: Determination of iron, calcium, magnesium, potassium, sodium, manganese, phosphorus, aluminum, titanium, strontium and barium in coal ash - Inductively coupled plasma-atomic emission spectrometry

---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.
Determination of iron, calcium, magnesium, potassium, sodium, manganese, phosphorus, aluminum, titanium, strontium and barium in coal ash--Inductively coupled plasma-atomic emission spectrometry ICS 73.040 D21 National Standards of People's Republic of China Iron, calcium, magnesium, potassium, sodium, manganese, phosphorus, aluminum, Determination of Titanium, Tantalum and Niobium inductively coupled plasma Atomic emission spectroscopy Published on.2019-06-04 2020-01-01 implementation State market supervision and administration China National Standardization Administration issued

Content

Foreword I 1 Scope 1 2 Normative references 1 3 Method Summary 1 4 reagents and materials 1 5 instruments and equipment 2 6 Gray sample preparation 3 7 Test step 3 8 Calculation and representation of results 4 9 Method Precision 5 10 Test report 6 Appendix A (Normative) Factor 7 for conversion of single elements to oxides

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard was proposed by the Coal Industry Association. This standard is under the jurisdiction of the National Coal Standardization Technical Committee (SAC/TC42). This standard was drafted. Coal Science and Technology Research Institute Co., Ltd. Testing Branch, Qinhuangdao Entry-Exit Inspection and Quarantine Bureau coal testing technology center. The main drafters of this standard. Yang Ni, Zhang Wei, Zhang Lianqiang, Fu Wei, Zhao Xiuhong, Mao Guangjian. Iron, calcium, magnesium, potassium, sodium, manganese, phosphorus, aluminum, Determination of Titanium, Tantalum and Niobium inductively coupled plasma Atomic emission spectroscopy

1 Scope

This standard specifies the determination of iron, calcium, magnesium, potassium, sodium, manganese, phosphorus, aluminum, titanium and tantalum in coal ash by inductively coupled plasma atomic emission spectrometry. Method summary, reagents and materials, equipment, ash preparation, test procedures, calculation and presentation of results, method precision and test report. This standard applies to coal, coke and coal gangue.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 483 General rules for coal analysis test methods

3 method summary

General analysis of samples after ashing, decomposition with hydrofluoric acid and perchloric acid, determination of sample dissolution by inductively coupled plasma atomic emission spectrometry The line intensity of each element in the liquid. Calculate the concentration of each element in the sample solution by using a standard solution as a calibration curve, and calculate the elements in the coal ash. The content of the elemental oxide.

4 reagents and materials

Unless otherwise stated, the reagents used in this standard are of analytical grade and the water used is deionized water or distilled water of equivalent purity. 4.1 Hydrofluoric acid. Density 1.14g/mL. 4.2 Perchloric acid. density 1.67g/mL. 4.3 Hydrochloric acid. Density 1.18 g/mL. 4.4 Hydrochloric acid solution (1 1). Add 1 volume of hydrochloric acid to 1 volume of water and shake well. 4.5 Hydrochloric acid solution (1 19). Add 1 volume of hydrochloric acid to 19 volumes of water and shake well. 4.6 Sulfuric acid solution (50 mL/L). Measure 5 mL of sulfuric acid (density 1.84 g/mL), slowly add water and dilute to 100 mL with water. 4.7 Iron standard stock solution (1mg/mL). Accurately weigh high-purity ferric oxide (99.99%) 1.4286g which has been dried at 110 °C for 1h. In a 400 mL beaker, add 40 mL of hydrochloric acid solution (1 1), cover the watch glass and slowly heat to dissolve, cool to room temperature, and transfer to 1000 mL. In a measuring flask, dilute to the mark with water, shake well, and transfer to a plastic bottle. 4.8 Calcium standard stock solution (1mg/mL). Accurately weigh 2.5000g of high-purity calcium carbonate (99.99%) which has been dried at 110 °C for 1h. In a 400 mL beaker, add 50 mL of water, cover the watch glass, slowly add 20 mL of hydrochloric acid solution (1 1) along the wall of the cup, dissolve completely, and cook by heating. Boil the carbon dioxide, rinse the surface dish and the cup with water, cool to room temperature, transfer to a 1000mL volumetric flask, dilute to the mark with water, shake well, Transfer to a plastic bottle. ......

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