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GB/T 8072-2012: Method of sampling and preparation for chrysotile asbestos
Status: Valid GB/T 8072: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 8072-2012 | English | 189 |
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3 days [Need to translate]
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Method of sampling and preparation for chrysotile asbestos
| Valid |
GB/T 8072-2012
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| GB 8072-1987 | English | 279 |
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3 days [Need to translate]
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Method of sampling and preparation for chrysotile asbestos
| Obsolete |
GB 8072-1987
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PDF similar to GB/T 8072-2012
Basic data | Standard ID | GB/T 8072-2012 (GB/T8072-2012) | | Description (Translated English) | Method of sampling and preparation for chrysotile asbestos | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q61 | | Classification of International Standard | 73.080 | | Word Count Estimation | 8,81 | | Older Standard (superseded by this standard) | GB 8072-1987 | | Regulation (derived from) | National Standards Bulletin No. 41 of 2012 | | Issuing agency(ies) | General Administration of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 chrysotile products from batch extraction and preparation of samples for testing procedures. This standard applies to chrysotile. Other mineral fiber extraction and preparation of samples may also refer to adopt. | GB/T 8072-2012: Method of sampling and preparation for chrysotile asbestos---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.
ICS73.080
Q61
National Standards of People's Republic of China
Replacing GB 8072-1987
Chrysotile asbestos sampling and sample preparation method
Issued on. 2013-09-01 2012-12-31 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard rule according to GB/T 1.1-2009 given draft.
This standard replaces GB 8072-1987 "chrysotile sampling and sample preparation method."
This compared with standard GB 8072-1987, mainly amended as follows.
--- Standard mandatory nature of the change recommended;
--- Increase the warning (see range before);
--- Remove the terminology (see the 1987 edition of the Chapter 1);
--- Increased safety requirements (see Chapter 2);
--- The provisions of bagged bulk sampling moved bagged requirements (see 411, 1987, version 2.1 and 4.1.1.);
--- The Bulk batch specified by the "same level grade asbestos fibers having a sampling heap" to "the same level with the same origin
Grades with a bunch of (or the same car) is a group of asbestos fibers "(see 4.2 1, 1987 edition of 4.2.1).
The standard proposed by China Building Materials Federation.
The standard and non-metallic mineral products by the National Standardization Technical Committee (SAC/TC406) centralized.
This standard was drafted. Non-metallic Minerals Xianyang Research and Design Institute Limited.
The main drafters of this standard. Shang Xingchun, ZHANG Xiu-fen, Shi Zhigang.
This standard was first published in 1987, this is the first revision.
Chrysotile asbestos sampling and sample preparation method
WARNING. Materials containing asbestos should take precautions at disposal, and should be consistent with national laws and regulations, ensure that they are human
Does not constitute a health and environmental hazard.
1 Scope
This standard specifies the product extracted from chrysotile batch and preparation of samples for testing procedures.
This standard applies to chrysotile. Extraction and preparation of other mineral fibers can also refer to the use of samples.
2 - Safety requirements
And staff prepared to take samples of chrysotile asbestos should wear dust masks, gloves and overalls.
Air flow rate sampling points should not exceed 0.5m/s, around the sampling point should not have non-wearing dust masks within 20m, gloves and overalls
Personnel exist.
Sample preparation should be in a confined space, it should normally vacuum cleaning facilities.
3 equipment and tools
3.1 division value of not more than 0.05kg scales one; a load of not less than 2000g, dividing the value of not more than 2g a balance; scale value is not
In 0.2g of a balance.
3.2 fiber conditioning machine, spindle speed 525r/min ± 25r/min, see Figure 1.
3.3 fiber press, working pressure 600kPa ± 60kPa, shown in Figure 2.
3.4 Sheng-like containers, sealable container drying capacity of not less than 100L.
3.5 surface smooth, clean tables and sub-model and other auxiliary tools.
4 sampling
4.1 Sampling bags
4.1.1 batch and the sample size
400 bags of a batch check. Less than 400 bags a check upon the terms of batches, each batch of checks drawn 40 bags, each bag from hand to crawl
One around each to 150g, the composition of a mixed sample of approximately 6kg.
When the batch is greater than 400 less than 4000 bags of bags, the total mixed sample of each composite sample composition.
4.1.2 Sampling procedures
4.1.2.1 The subjects bagged asbestos according to 4.1.1 into several inspection lot.
4.1.2.2 The inspection lot forty aliquots, each aliquot in any appropriate location selected a bag, take a sample from the bag, the composition of mixed samples.
If the inspection lot less than 40 bags, each bag from the different parts of a sample of more than crawl.
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