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GB/T 32554-2016: Fluorspar -- Experimental methods for checking the bias of sampling and sample preparation
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 32554-2016 | English | 299 |
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Fluorspar -- Experimental methods for checking the bias of sampling and sample preparation
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GB/T 32554-2016
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Basic data | Standard ID | GB/T 32554-2016 (GB/T32554-2016) | | Description (Translated English) | Fluorspar -- Experimental methods for checking the bias of sampling and sample preparation | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | D52 | | Classification of International Standard | 73.080 | | Word Count Estimation | 15,116 | | Date of Issue | 2016-02-24 | | Date of Implementation | 2016-11-01 | | Regulation (derived from) | National Standard Announcement No | | 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 | GB/T 32554-2016: Fluorspar -- Experimental methods for checking the bias of sampling and sample preparation
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Fluorspar - Experimental methods for checking the bias of sampling and sample preparation
ICS 73.080
D52
National Standards of People's Republic of China
Test Method for Checking Deviation of Fluorite
Fluorspar-Experimentalmethods forcheckingthebiasof
2016-02-24 released
2016-11-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
China National Standardization Management Committee released
Foreword
This standard is drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed by China Iron and Steel Industry Association.
This standard is under the jurisdiction of the National Steel Standardization Technical Committee (SAC/TC183).
The drafting unit of this standard. Shougang Technology Research Institute, Metallurgical Industry Information Standards Institute.
The main drafters of this standard. Zhang Lei, Wu Zhaohui, Yan Wei, Zhao Xu, Liu Zhenghua, Zhang Xijing, Lu Chunsheng.
Test Method for Checking Deviation of Fluorite
1 Scope
This standard specifies the test method for fluorite calibration sampling deviations.
This standard applies to the test method for checking the sampling deviation as specified in GB/T 22564-2008.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
Fluorite sampling and sample preparation GB/T 22564-2008
3 General rules
3.1 In the test method given in this standard, the results of the method (ie method B) to be examined and the standard method (referring to method A)
In contrast, from a technical and empirical point of view, the results of the standard method are not actually biased.
3.2 There is no statistically significant difference between the results obtained by method B and method A, and as long as the parties concerned agree on this issue,
Method B can be used as a daily method.
Note. This standard uses 5% significance level t test (unilateral) to assess the deviation. By determining the difference between the results of method A and method B, whether due to randomness
Whether the error is caused or whether it is statistically different.
3.3 The number of delivery lots or batches shall be no less than 20 batches, and the number of tests to be tested depends on the standard deviation of the 20 test differences and the measured deviation δ
For details, see the analysis of test data. The measured deviation δ should be agreed by the parties concerned, from the technical and economic point of view to consider the use of the test
The various precision of the method, unless otherwise agreed. A half of the precision of Table 1 in GB/T 22564-2008 can be used as a reference value.
3.4 Calcium fluoride, silica, moisture, particle size distribution and other quality characteristics can be used as a deviation test.
4 Sampling and sample preparation
4.1 Sampling
The standard method of checking the sampling deviation (method A) is the stop sampling method. The method of checking (method B) applies the same type of fluorite with
Standard method for comparison. The test examples are as follows.
Example 1. Sampling from the conveyor belt
Method A. Take each sample at the specified location from the full width of the full-thickness fluorite stream on the stopped conveyor belt. The sampler width is greater than the firefly
The maximum particle size of the stone is 3 times or greater than that specified in Table 4 of GB/T 22564-2008.
Method B (Approved method). In accordance with GB/T 22564-2008 4.4, in the ore stream from each randomly selected point
Take each sample.
Example 2. Mechanical sampling
Method A. Take the sample according to Method 1 of Example 1.
Method B. Take a sample with a mechanical sampler on a conveyor belt moving around Method A.
Example 3. Sampling from a truck
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