GB/T 8072-2012Method of sampling and preparation for chrysotile asbestos (English PDF)
温石棉取样、制样方法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 31, 2012
Implementation date
September 1, 2013
Scope
GB/T 8072-2012 is the English-translated version of 温石棉取样、制样方法.
GB/T 8072-2012 is the Chinese standard "Method of sampling and preparation for chrysotile asbestos". Its scope clause reads: 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.
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Document preview — GB/T 8072-2012
National Standard of the People's Republic of China
- ICS
- 73.080
- Classification
- Q 61
- Replacing
- GB 8072-1987
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
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.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Similar standards
Editions of GB/T 8072
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 8072-2012 | Method of sampling and preparation for chrysotile asbestos | current edition | Current |
| GB 8072-1987 | Method of sampling and preparation for chrysotile asbestos | previous edition | Superseded |
This page sells the current edition, GB/T 8072-2012. Earlier editions are listed for reference only.
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