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Determination of total sulfur in solid biofuels
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Basic data
| Standard ID | GB/T 28732-2012 (GB/T28732-2012) |
| Description (Translated English) | Determination of total sulfur in solid biofuels |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | D21 |
| Classification of International Standard | 75.160.10 |
| Word Count Estimation | 8,856 |
| Quoted Standard | GB/T 212; GB/T 214; GB/T 21923 |
| Regulation (derived from) | National Standards Bulletin 2012 No. 28 |
| 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 use Ai Shika France and Coulomb Titration solid biomass fuels Method summary of total sulfur, reagents and materials, equipment, testing procedures, results calculation and precision. Arbitration analysis, using Ai Shika method |
GB/T 28732-2012: Determination of total sulfur in solid biofuels
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ICS75.160.10
D21
National Standards of People's Republic of China
Solid biomass fuels determination of total sulfur
Issued on. 2013-06-01 2012-11-05 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard rule according to GB/T 1.1-2009 given draft.
The standard proposed by China Coal Industry Association.
This standard coal by the National Standardization Technical Committee (SAC/TC42) centralized.
This standard was drafted. CCRI coal analysis laboratory.
The main drafters of this standard. leather Zhongyuan, Chen Baohua.
Solid biomass fuels determination of total sulfur
1 Scope
This standard specifies the method used Ai Shika and Coulomb titration of solid biomass fuels in total sulfur in the feed method, reagents and materials, instruments
Equipment, test procedures, the results of calculation and precision. Arbitration analysis used Ai Shika law.
This standard applies to all kinds of solid biomass fuel.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated edition applies to this article
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 212 Coal Industry Analysis
Determination of total sulfur in GB/T 214 coal
GB/T 21923 solid biomass fuels General Inspection
3 Ai Shika law
3.1 Method summary
The solid biomass fuels in general analysis sample and reagent mixing Ai Shika burning, all sulfur in the sample is converted to soluble sulfate, and then
After allowing ions to form sulfuric acid, barium sulfate precipitation, calculate the total sulfur content of solid biomass fuels based on the quality of barium sulfate.
3.2 Reagents and materials
Unless otherwise indicated in the analysis using only recognized as analytical reagent or distilled or deionized water or equivalent purity.
3.2.1 Ai Shika agent (hereinafter referred to as aldrin). 2 parts by mass of chemically pure light magnesium oxide (GB/T 9857) and 1 part by mass of
Studies pure anhydrous sodium carbonate (GB/T 639) was mixed and finely ground to a particle size less than after 0.2mm, kept in a sealed container.
3.2.2 hydrochloric acid solution. (11), a volume of hydrochloric acid (GB/T 622) adding a volume of water and mix.
3.2.3 barium chloride solution. 100g/L, 10g of barium chloride (GB/T 652) were dissolved in 100mL water.
3.2.4 methyl orange solution. 2g/L, 0.2g of methyl orange was dissolved in 100mL of water.
3.2.5 silver nitrate solution. 10g/L, 1g silver nitrate (GB/T 670) was dissolved in 100mL of water, adding a few drops of nitric acid (GB/T 626), the reservoir
In a dark bottle.
3.2.6 porcelain crucible. a capacity of 30mL and 10mL ~ 20mL two kinds.
3.2.7 filter. medium-speed qualitative filter paper and the dense ash quantitative filter paper (GB/T 1914).
3.3 Equipment
3.3.1 Analytical Balance. a sense of the amount of 0.1mg.
3.3.2 muffle furnace. with a temperature control device which can heat up to 900 ℃, adjustable temperature and ventilation.
3.4 Test procedure
3.4.1 in 30mL porcelain crucible weighed general analytical sample (1.00 ± 0.01) g (weighing accuracy of 0.0002g) and Aldrin (3.2.1)
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