ISO 11289:1993

Heat-processed foods in hermetically sealed containers — Determination of pH

Publication date:   Sep 2, 1993

General information

90.93 Standard confirmed   May 20, 2021


ISO/TC 34/SC 9 Microbiology

International Standard

67.050   General methods of tests and analysis for food products



Language in which you want to receive the document.


The principle of the method specified is preparing the test sample according to the class to which the product to be examined belongs, and measuring the potential difference between a glass electrode and a reference electrode immersed in the test sample. Applies to four classes of product: 1. homogeneous products with a liquid or thick texture, or products exhibiting a large liquid or thick phase; 2. homogeneous pastes or heterogeneous products for which homogenization is necessary; 3. heterogeneous products with large solid components; 4. products whose liquid phase mainly consists of oil or a water/oil emulsion.

Life cycle


ISO 11289:1993
90.93 Standard confirmed
May 20, 2021