JIS K 3850-3:2000
Current
The latest, up-to-date edition.
Measuring method for airborne fibrous particles -- Part 3: Indirect-transfer transmission electron microscopy method
English
30-09-2000
This Standard specifies a reference method using transmission electron microscopy (TEM) for determination of the concentration of asbestos structures in ambient atmospheres. The specimen preparation procedure incorporates ashing and dispersion of the collected particulate, so that all asbestos is measured, including the asbestos originally incorporated in particle aggregates or particles of composite materials. The lengths, widths and aspect ratios of the asbestos fibres and bundles are measured, and these, together with the density of the type of asbestos, also allow the total mass concentration of airborne asbestos to be calculated. The method allows determination of the type(s) of asbestos fibre present. The method cannot discriminate between individual fibres of the asbestos and non-asbestos analogues of the same amphibole mineral.
| DocumentType |
Standard
|
| Pages |
75
|
| ProductNote |
THIS STANDARD IS IDENTICAL TO :ISO/DIS 13794:1996
|
| PublisherName |
Japanese Standards Association
|
| Status |
Current
|
| Supersedes |
Reaffirmed 2015 2000(R2015) [20/10/2015]2000(R2010) [01/10/2010]2000 [20/02/2000]
| JIS K 3850-2:2000 | Measuring method for airborne fibrous particles -- Part 2: Direct-transfer transmission electron microscopy method |
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