scope:

SCOPE AND FIELD OF APPLICATION

Interpretation :

A displacement compressor is a machine where a static pressure rise is obtained by allowing successive volumes of gas to be aspired into and exhausted out of a closed space by means of the displacement of a moving member.

This International Standard specifies methods for acceptance tests and technical conditions for the supply of displacement compressors. The absolute intake pressure should exceed approximately 100 Pa (1 mbar), thus including certain types of displacement vacuum pumps.

It gives detailed instructions on the measurement of capacity and power consumption and means of adjusting the measured values to guaranteed conditions.

NOTES

1 The main body of this International Standard gives detailed instruction regarding acceptance tests of displacement compressors. There is, however, also a practical need for somewhat simpler tests. Besides the acceptance test there exist also :

- type test,

- simplified test and

- endurance test.

Instructions for carrying out these latter classes of tests are given in annex C.

2 The International System of units (SI) is used in this International Standard. The fundamental units, metre, kilogram, second, ampere, kelvin (formerly degree Kelvin) and candela, are defined in ISO 1000.

Conversion factors for other unit systems are added to this International Standard, in order to facilitate the use of the International System. (See annex F.)