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GB/T 14506.34-2019: Methods for chemical analysis of silicate rocks -- Part 34: Determination of loss on ignition -- Gravimetric method
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Methods for chemical analysis of silicate rocks -- Part 34: Determination of loss on ignition -- Gravimetric method
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GB/T 14506.34-2019
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Basic data | Standard ID | GB/T 14506.34-2019 (GB/T14506.34-2019) | | Description (Translated English) | Methods for chemical analysis of silicate rocks -- Part 34: Determination of loss on ignition -- Gravimetric method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D53 | | Classification of International Standard | 73.080 | | Word Count Estimation | 10,176 | | Date of Issue | 2019-10-18 | | Date of Implementation | 2020-05-01 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 14506.34-2019: Methods for chemical analysis of silicate rocks -- Part 34: Determination of loss on ignition -- Gravimetric method
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Methods for chemical analysis of silicate rocks--Part 34. Determination of loss on ignition--Gravimetric method
ICS 73.080
D53
National Standards of People's Republic of China
Silicate rock chemical analysis method
Part 34. Determination of loss on ignition
Part 34.Determinationoflossonignition-Gravimetricmethod
Published on.2019-10-17
2020-05-01 implementation
State market supervision and administration
China National Standardization Administration issued
Foreword
GB/T 14506 "Chemical Analysis Method for Silicate Rocks" consists of the following 34 parts.
--- Part 1. Determination of adsorbed water;
--- Part 2. Determination of combined water content;
---Part 3. Determination of the amount of silica;
--- Part 4. Determination of the amount of aluminum oxide;
---Part 5. Determination of total iron content;
---Part 6. Determination of the amount of calcium oxide;
---Part 7. Determination of the amount of magnesium oxide;
---Part 8. Determination of the amount of titanium dioxide;
---Part 9. Determination of the amount of phosphorus pentoxide;
---Part 10. Determination of manganese oxide content;
--- Part 11. Determination of potassium oxide and sodium oxide;
--- Part 12. Determination of fluorine content;
--- Part 13. Determination of sulfur content;
---Part 14. Determination of the amount of ferrous oxide;
---Part 15. Determination of lithium content;
---Part 16. Determination of enthalpy;
--- Part 17. Determination of enthalpy;
---Part 18. Determination of copper content;
---Part 19. Determination of lead content;
--- Part 20. Determination of the amount of zinc;
--- Part 21. Determination of nickel and cobalt content;
--- Part 22. Determination of vanadium content;
--- Part 23. Determination of chromium content;
--- Part 24. Determination of cadmium content;
---Part 25. Determination of molybdenum and tungsten;
---Part 26. Determination of cobalt content;
--- Part 27. Determination of nickel content;
--- Part 28. Determination of 16 primary and secondary components;
---Part 29. Determination of 22 elemental quantities such as rare earths;
--- Part 30. Determination of 44 element quantities;
--- Part 31. Determination of 12 components such as silica - Lithium metaborate melting - Inductively coupled plasma atomic emission
Spectral method
--- Part 32. Determination of 20 components such as aluminum oxide, mixed acid decomposition - inductively coupled plasma atomic emission spectrometry;
---Part 33. Determination of arsenic, antimony, bismuth and mercury - Hydride generation - atomic fluorescence spectrometry;
--- Part 34. Determination of loss on ignition by weight method.
This part is the 34th part of GB/T 14506.
This part is drafted in accordance with the rules given in GB/T 1.1-2009.
This part is proposed by the Ministry of Natural Resources of the People's Republic of China
This part is under the jurisdiction of the National Land Resources Standardization Technical Committee (SAC/TC93).
This section drafted by. National Geological Experimental Testing Center.
The main drafters of this section. An Ziyi, Wang Suming, Wang Yaping, Xu Chunxue, Sun Dezhong, Chen Zongding.
Silicate rock chemical analysis method
Part 34. Determination of loss on ignition
1 Scope
This part of GB/T 14506 specifies the gravimetric method for the determination of loss on ignition in silicate rock.
This section applies to gravimetric determination of loss on ignition in silicate rock, and is also applicable to the determination of loss on ignition in soil and sediment samples.
The method can determine a loss on ignition of greater than 0.1%.
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 6379.2 Accuracy of measurement methods and results (accuracy and precision) Part 2. Determination of standard method of measurement
Basic method of sex and reproducibility
GB/T 6379.4 Accuracy of measurement methods and results (accuracy and precision) Part 4. Determining the standard measurement method correctly
Basic method of degree
GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values
GB/T 14505 General rules and general rules for chemical analysis of rocks and ores
3 Principle
During the burning process of silicate rock samples, fluorine, chlorine, sulfur, carbon dioxide and other components lose weight due to volatilization, while some components such as ferrous iron may be oxidized.
Weight gain. The loss on ignition is the algebraic sum of mass changes before and after burning.
4 instruments
4.1 Analytical balance. Sensitivity 0.1mg.
4.2 Muffle furnace. The maximum operating temperature is not less than 1100 °C, and it can automatically control the temperature.
4.3 Porcelain crucible or platinum crucible. capacity 10mL~25mL.
4.4 The equipment used in the test is qualified or calibrated and is within the validity period.
5 samples
5.1 According to the relevant provisions of GB/T 14505, the particle size of the processed sample should be less than 74μm.
5.2 The sample shall be pre-dried at 105 ° C for 2 h, placed in a desiccator and cooled to room temperature.
6 test steps
6.1 Place the open space (4.3) into the center of the muffle furnace (4.2), heat it to 1000 °C ± 25 °C, and burn for 2 hours to remove the crucible. After a little cold, set
It was cooled in a desiccator for 30 min and weighed. The burning was repeated for another 30 minutes and then weighed until constant weight.
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