1.1 Materials to be measured This standard specifies the measurement of the concentration of asbestos structures in the ambient air (including measuring the length, width, and aspect ratio of asbestos structures) using a transmission electron microscope (hereinafter referred to as TEM). ). …
JIS K 3850-2:2000 history
2000JIS K 3850-2:2000 Measuring method for airborne fibrous particles -- Part 2: Direct-transfer transmission electron microscopy method