GB/T 30725-2014 English PDF

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GB/T 30725-2014: Determination of ash composition in solid biofuels
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 30725-2014	399	Add to Cart	3 days	Determination of ash composition in solid biofuels	Valid

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Basic data

Standard ID: GB/T 30725-2014 (GB/T30725-2014)
Description (Translated English): Determination of ash composition in solid biofuels
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: D21
Classification of International Standard: 75.160.10
Word Count Estimation: 17,160
Date of Issue: 6/9/2014
Date of Implementation: 10/1/2014
Quoted Standard: GB/T 21923; GB/T 28731
Regulation (derived from): National Standards Bulletin No. 11 of 2014
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 determination of solid biomass fuels in silicon, titanium, aluminum, iron, calcium, magnesium, potassium, sodium, phosphorus, sulfur method feeds, reagents and materials, equipment, analytical procedure, the results of calculat

GB/T 30725-2014: Determination of ash composition in solid biofuels

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Determination of ash composition in solid biofuels ICS 75.160.10 D21 National Standards of People's Republic of China Solid biomass fuel ash component measurement method Issued on. 2014-06-09 2014-10-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Reagents and materials 1 4 Equipment 1 5 1 ash sample preparation 6 silica, titanium dioxide, aluminum oxide Determination 2 6.1 Preparation of solution 2 6.2 Determination of silica (silicon molybdenum blue spectrophotometric method) 2 6.3 Determination of titanium dioxide (two methane antipyrine spectrophotometric method) 4 6.4 Determination of aluminum oxide (fluoride replacing EDTA complexometric titration) 5 7 potassium, sodium, iron, calcium, magnesium measurement (atomic absorption method) 7 7.1 Method summary 7 7.2 Reagent 7 7.3 Analysis Step 8 7.4 Calculation result 9 7.5 The precision 9 8 Determination of phosphorus pentoxide (phosphorus molybdenum blue spectrophotometric method) 10 8.1 Method summary 10 8.2 Reagent 10 8.3 Analysis Step 10 11 8.4 Calculation Results 8.5 The precision 11 9 Determination of sulfur trioxide (barium sulfate Quality Act) 11 9.1 Method summary 11 9.2 Reagent 11 9.3 Analysis Step 12 12 9.4 Calculation Results 9.5 The precision 12 10 12 Test Report

Foreword

This standard was drafted according to GB/T 1.1-2009 given rules. 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 Detection Research Branch. The main drafters of this standard. Xing Xiuyun, Wangqiu Xiang, Zhang Ke Rui. Solid biomass fuel ash component measurement method

1 Scope

This standard specifies the method for summary determination of solid biomass fuel ash silicon, titanium, aluminum, iron, calcium, magnesium, potassium, sodium, phosphorus, sulfur, reagents and materials Materials, equipment, analysis step, the results of calculation and precision of the method and the like. This standard applies to solid biomass fuel.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 21923 Test code for solid biomass fuels GB/T 28731 solid biomass fuel industry analysis

3 Reagents and materials

Unless otherwise indicated in the analysis using only recognized as qualified analytical grade reagents and distilled or deionized water or equivalent purity. 3.1 platinum crucible. 30mL. 3.2 silver crucible. 30mL. 3.3 porcelain crucible. 30mL. 3.4 Teflon Crucible. 30mL. 3.5 cupel. porcelain, 120mm × 60mm × 14mm.

4 Equipment

4.1 UV-Vis spectrophotometer. 4.2 Atomic absorption spectrophotometer. with flame atomization device. 4.3 muffle furnace. temperature range from room temperature to 900 deg.] C, the furnace has a sufficient temperature zone, can be 5 ℃/min heating rate and can be maintained Temperature (550 ± 10) ℃. Ventilation per minute on the furnace for 5 to 10 air changes appropriate. 4.4 high-temperature furnace. with a temperature control device, can keep (1000 ± 10) ℃. 4.5 Analytical balance. minimum scale value 0.1mg. 4.6 Electric hot plate. With thermostat, maximum surface temperature does not exceed 300 ℃. 4.7 EAF. rated voltage 220V, rated power 1kW, with a thermostat, the furnace temperature does not exceed 300 ℃.

5 ash sample preparation

Weigh a certain amount of solid biomass fuel sample for analysis in the ash pan and allowed per square centimeter does not exceed 0.15g, sending ash pan muffle Furnace, according to GB/T 28731 established procedures ashing. After removing the cooling, using an agate mortar finely ash sample to 0.1mm or less. Then, set In the ash pan, at (550 ± 10) ℃ and then calcined at least 30min, until the change in mass of not more than 0.1% ash quality so far, that is, ......

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