This standard applies to particles with a diameter of 5 μm or more but less than 50 μm, particles with a diameter of 50 μm or more, and particles with a length of Specifies the method for measuring the number of fibers of 100 μm or more and separable particles with diameters of 0.5 μm or more, 1 μm or more, and 5 μm or more. Note () Clean room clothing refers to work clothing used in clean rooms, including continuous clothing, a set of upper and lower clothing, and a coat.
JIS B 9923:1997 history
1997JIS B 9923:1997 Clean room garment -- Methods for sizing and counting particle contaminants in and on clean room garments