JIS K 3850-3:2000Measuring method for airborne fibrous particles Part 3: Indirect-transfer transmission electron microscopy method
Abstract
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.
Details
Status |
Current |
Pages |
75 |
Language |
English |
Supersedes |
JIS K 3850:1995 |
Superseded By |
|
DocumentFormat |
PDF(Copy/Paste/Networkable) |
Published |
20-02-2000 |
History |
2000(R2015) [20/10/2015] 2000(R2010) [01/10/2010] 2000 [20/02/2000] |
Note
We will send the latest version to you, please contact us if you want the exact document as the title. Some old Standards are in scancopy and no reaffirmed stamp
This product was added to our catalog on Saturday 10 March, 2018.