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GB/T 3286.8-2014

Chinese Standard: 'GB/T 3286.8-2014'
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GB/T 3286.8-2014English160 Add to Cart 0--10 minutes. Auto immediate delivery. Method for chemical analysis of limestone and dolomite -- Part 8: The determination of loss on ignition -- The gravimetric method Valid GB/T 3286.8-2014
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Standard ID GB/T 3286.8-2014 (GB/T3286.8-2014)
Description (Translated English) Method for chemical analysis of limestone and dolomite. Part 8: The determination of loss on ignition. The gravimetric method
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard D52
Classification of International Standard 73.080
Word Count Estimation 9,992
Date of Issue 2014/6/9
Date of Implementation 2015/1/1
Older Standard (superseded by this standard) GB/T 3286.8-1998
Quoted Standard GB/T 2007.2; GB/T 6379.2; GB/T 8170
Drafting Organization Wuhan Iron and Steel (Group) Company
Administrative Organization National Steel Standardization Technical Committee
Regulation (derived from) National Standards Bulletin No. 11 of 2014
Proposing organization China Iron and Steel Association
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 the weight loss on ignition method. This Standard applies to limestone, dolomite in the determination of loss on ignition, also suitable for the determination of loss on ignition of metallurgical lime.

GB/T 3286.8-2014
ICS 73.080
D 52
Replacing GB/T 3286.8-1998
Method for chemical analysis of limestone and
dolomite - Part 8: The determination of loss on
ignition - The gravimetric method
石灰石及白云石化学分析方法 第 8部分: 灼烧减量的测定
ISSUED ON: JUNE 09, 2014
Issued by: General Administration of Quality Supervision Inspection and
Quarantine of PRC;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3 
1 Scope ... 5 
2 Normative references ... 5 
3 Principles ... 5 
4 Instruments ... 6 
5 Sample preparation ... 6 
6 Analytical procedures ... 6 
7 Calculation and expression of analytical results ... 7 
8 Precision ... 8 
9 Test report ... 9 
Appendix A (Normative) The flow chart of acceptance procedure for sample
analysis result ... 10 
Appendix B (Informative) Precision test function relations and raw data ... 11 
Method for chemical analysis of limestone and
dolomite - Part 8: The determination of loss on
ignition - The gravimetric method
Warning: The personnel using this part shall have formal laboratory work
experience. This part does not point out all possible security issues. The
user is responsible for taking appropriate safety and health measures and
ensuring compliance with the conditions stipulated by relevant national
laws and regulations.
1 Scope
This part of GB/T 3286 specifies the gravimetric method to determine the loss
on ignition.
This part applies to the determination of loss on ignition in limestone and
dolomite; it also applies to the determination of loss on ignition in metallurgical
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this standard.
GB/T 2007.2 General rules for the sampling and sample preparation of
minerals in bulk. Sample preparation by manual method
GB/T 6379.2 Accuracy (trueness and precision) of measurement methods
and results - Part 2: Basic method for the determination of repeatability and
reproducibility of a standard measurement method
GB/T 8170 Rules of rounding off for numerical values & expression and
judgement of limiting values
3 Principles
The sample is placed in a platinum crucible; the temperature is gradually
increased to 1050 °C ± 50 °C in a high temperature furnace to burn it to a
constant mass. The reduced mass is the loss on ignition.
4 Instruments
In the analysis, only the usual laboratory instruments and equipment are used.
5 Sample preparation
5.1 Prepare specimen according to GB/T 2007.2.
5.2 The specimen shall be processed to a particle size less than 0.125 mm.
5.3 Limestone and dolomite specimens are dried at 105 °C ~ 110 °C for 2 h
before analysis; they are placed in a desiccator to cool to room temperature.
5.4 The preparation of metallurgical lime specimens shall be carried out quickly.
After the specimen is prepared, they shall be placed in a ground-mouth bottle
or plastic bag and sealed immediately; stored in a desiccator. The specimens
are not dried before analysis.
6 Analytical procedures
6.1 Number of determinations
For the same specimen (5.3 or 5.4), make at least 2 independent
6.2 Sample mass
Weigh 1.00 g of sample, accurate to 0.0001 g. For metallurgical lime, the
sample shall be quickly weighed.
6.3 Determination
6.3.1 Spread the sample (6.2) flat in a platinum crucible (including a platinum
cover) that has been burned and weighed at 1050 °C.
6.3.2 Place the platinum crucible......
Related standard:   GB/T 3286.10-2020  GB/T 3286.5-2014
Related PDF sample:   GB/T 3286.1-2012
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