ISO 1388-2:1981 工業用エタノール—試験方法—パート2：フェノールフタレインに対するアルカリ性の検出または酸性度の測定 | ページ 2

Foreword

ISO (the International Organization for Standardization) is a worldwide federation of national standards institutes (ISO member bodies). The work of developing International Standards is carried out through ISO technical committees. Every member body interested in a subject for which a technical committee has been set up 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.

Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISO Council.

International Standard ISO 1388/2 was developed by Technical Committee ISO/TC 47, Chemistry, and was circulated to the member bodies in February 1980.

It has been approved by the member bodies of the following countries:

No member body expressed disapproval of the document.

This International Standard has also been approved by the International Union of Pure and Applied Chemistry (IUPAC).

International Standards ISO 1388/1 to ISO 1388/12 cancel and replace ISO Recommendation R 1388-1970, of which they constitute a technical revision.

1 Scope and field of application

This part of ISO 1388 specifies a method for the detection of alkalinity and, if appropriate, the subsequent determination of acidity of ethanol for industrial use.

The method is applicable to products having acidities, expressed as acetic acid (CH₃COOH), greater than or equal to 0,000 8 % itn/m).

This document should be read in conjunction with ISO 1388/1 (see the annex).

Annex

ISO Publications relating to ethanol for industrial use