Forewords

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.

The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directives

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received. www.iso.org/patents

Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.

For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISO's adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information

The committee responsible for this document is ISO/TC 34, Food and food products, Subcommittee SC 5, Milk and milk products and the International Dairy Federation (IDF) and is being published jointly by ISO and IDF.

This second edition of ISO 8968‑1|IDF 20-1 cancels and replaces the first edition of ISO 8968‑1| IDF 20‑1:2001, ISO 8968‑2|IDF 20‑2:2001, ISO 5549:1978/ IDF 92:1979 and ISO/TS 17837| IDF/RM 25:2008 which have been technically revised.

The International Dairy Federation (IDF) is a worldwide federation of the dairy sector with a National Committee in every member country. Every National Committee has the right to be represented on the IDF Standing Committees carrying out the technical work. IDF collaborates with ISO in the development of standard methods of analysis and sampling for milk and milk products.

Draft International Standards adopted by the Standing Committees are circulated to the National Committees for voting. Publication as an International Standard requires approval by at least 50 % of IDF National Committees casting a vote.

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

Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.

ISO 8968‑1 |IDF 20‑1 was prepared by the International Dairy Federation and Technical Committee ISO/TC 34, Food products, Subcommittee SC 5, Milk and milk products. It is being published jointly by ISO and IDF.

The work was carried out by the IDF-ISO Project Group on Nitrogen, of the Standing Committee on Analytical Methods for Composition (SCAMC), under the aegis of its project leaders: Mr. R. Johnson (NZ), Mr. J. Romero (US), Dr. Barbano (US), Dr. Orlandini (IT), and Mr. Psathas (CY).

This second edition of ISO 8968‑1|IDF 20-1 cancels and replaces the first edition of ISO 8968‑1| IDF 20‑1:2001, ISO 8968‑2|IDF 20‑2:2001, ISO 5549:1978/ IDF 92:1979 and ISO/TS 17837| IDF/RM 25:2008 which have been technically revised.

BS EN ISO 8968-1:2014

Milk and milk products. Determination of nitrogen content - Kjeldahl principle and crude protein calculation

Current

Published:

28 Feb 2014