scope:

This Standard specifies purity classes of compressed air with respect to particles, water and oil, independent of the location in the compressed air system at which the air is specified or measured.

This Standard provides general information about contaminants in compressed air systems as well as links to the other parts of JIS B 8392, either for the measurement of compressed air purity or the specification of compressed air purity requirements.

In addition to the above-mentioned contaminants of particles, water and oil, this Standard also identifies gaseous and microbiological contaminants. Guidance is given in Annex A as to the application of this Standard.

NOTE: The International Standard corresponding to this Standard and the symbol of degree of correspondence are as follows:

ISO 8573-1:2010 Compressed air-Part 1: Contaminants and purity classes (IDT)

The symbols which denote the degree of correspondence in the contents between the relevant International Standard and JIS are IDT (identical), MOD (modified), and NEQ (not equivalent) according to ISO/IEC Guide 21-1.