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Determination of total moisture for solid biofuels
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Basic data
| Standard ID | GB/T 28733-2012 (GB/T28733-2012) |
| Description (Translated English) | Determination of total moisture for solid biofuels |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | D21 |
| Classification of International Standard | 75.160.10 |
| Word Count Estimation | 9,987 |
| Quoted Standard | GB/T 21923; GB/T 28730 |
| Regulation (derived from) | National Standards Bulletin No. 28 of 2012 |
| 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 solid biomass fuels Determination of total moisture equipment, measurement procedures, results calculation, precision, etc., should be used in the arbitration analysis method A. This standard applies to solid biomass fuels. |
GB/T 28733-2012: Determination of total moisture for solid biofuels
---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.
ICS75.160.10
D21
National Standards of People's Republic of China
Solid biomass fuels Determination of total moisture
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 revised standard adopts the following EU Technical Specification. CEN/TS14774-1.2004 "solid biomass fuel drying method of moisture determination
Box drying method - Part 1. Total moisture Arbitration Law "; CEN/TS14774-2.2004" solid biomass fuel drying method of moisture determination
Box drying method - Part 2. Total moisture - Simplified method. "
This standard is based on the re-drafting of the EU technical specifications of this standard are listed in Appendix A of this standard reg number above the EU TECHNOLOGY
Operation control specification clauses numbered list.
Taking into account China's national conditions, in the above-mentioned EU technical norms, the standards made some changes. For a technical differences have been incorporated into the text
And they relate to a single vertical line identification in terms of margin used. Gives these technical differences and their causes in Appendix B
The list for reference.
For ease of use, the technical specifications of the above-mentioned EU also made editorial changes.
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. Li graph, Ling Po, hair lightsaber.
Solid biomass fuels Determination of total moisture
1 Scope
This standard specifies the equipment of solid biomass fuels total moisture measurement method, measurement step, the results of calculations, accuracy, etc., in arbitration
Analysis should be used method A.
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 edition applies to this article
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 21923 solid biomass fuels General Inspection
GB/T 28730 solid biomass fuel sample preparation method
3 Method summary
3.1 Method A (Arbitration Act)
Weigh a certain amount of solid biomass fuel sample at a temperature of 105 ℃ ± 2 ℃, dried in a stream of air to a constant quality, hot
Weighed according to the mass loss of the sample after drying and after buoyancy correction calculated total moisture content.
3.2 Method B (simplified method)
Weigh a certain amount of solid biomass fuel sample at a temperature of 105 ℃ ± 2 ℃, dried in a stream of air to a constant quality, hot
Weighed according to the mass loss of the sample after drying to calculate the total moisture content.
4 Equipment
4.1 Air oven. with automatic temperature control and ventilation apparatus, capable of temperature control in the range of 105 ℃ ± 2 ℃, gas inlet and outlet, have
Sufficient ventilation, air changes per hour more than five times.
4.2 tray. galvanized iron or aluminum, and other heat-resistant, corrosion-resistant material, and its specifications should be able to accommodate 300g sample, unit load
Not more than 1g/cm2.
4.3 Balance. a sense of the amount of 0.1g.
5 Sample Preparation
Water sample size ≤30mm whole, the quality of not less than 2kg. Sample preparation in accordance with the provisions of GB/T 28730 in.
6 measuring step
6.1 sample quality checks
Prior to the determination of total moisture, samples should be checked whether the received sealed waterproof containers, and the total mass of the container into the label stated
Line check. If weighed less than the total mass of the total mass indicated on the label (less than 1%), and the sample can be determined during transport
When there is no loss of quality should be reduced as the water quality of solid biomass fuel samples in transit losses, calculate water loss one hundred
Fraction, performed according to the water loss correction 6.5.
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