ISO 8573-5:2001 圧縮空気—パート5：オイル蒸気と有機溶剤含有量の試験方法 | ページ 2

Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.

International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3.

The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote.

Attention is drawn to the possibility that some of the elements of this part of ISO 8573 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.

International Standard ISO 8573-5 was prepared by Technical Committee ISO/TC 118, Compressors, pneumatic tools and pneumatic machines, Subcommittee SC 4, Quality of compressed air.

ISO 8573 consists of the following parts, under the general title Compressed air:

• Part 1: Contaminants and purity classes
• Part 2: Test methods for aerosol oil content
• Part 3: Test methods for measurement of humidity
• Part 4: Test methods for solid particle content
• Part 5: Test methods for oil vapour and organic solvent content
• Part 6: Test methods for gaseous contaminant content
• Part 7: Test methods for viable micro biological contaminant content

The following parts are under preparation:

• Part 8: Test methods for solid particle content by mass concentration
• Part 9: Test methods for liquid water content

Annex A forms a normative part of this part of ISO 8573. Annex B is for information only.

1 Scope

This part of ISO 8573 specifies the gas chromatography test method for determining the content of oil vapour (hydrocarbons of six or more carbon atoms) in compressed air, regardless of the source of the compressed air, as well as of any organic solvents in the vapour, difficult to separate from the other hydrocarbons. It also gives guidelines on the use of chemical indicator tubes as an initial indication of the presence of oil vapour.

This part of ISO 8573 elaborates sampling, measurement, evaluation, uncertainty considerations and reporting in respect of the compressed air purity class parameter, oil vapour, in accordance with ISO 8573-1.

2 Normative references

The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 8573. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 8573 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards.

3 Terms and definitions

For the purposes of this part of ISO 8573, the terms and definitions given in ISO 3857-1, ISO 5598 and ISO 8573-1, and the following apply.

Bibliography