ISO 11289-1993 密封容器中的加热食品 pH值的测定

标准号：ISO 11289-1993
中文标准名称：密封容器中的加热食品 pH值的测定
英文标准名称：Heat-processed foods in hermetically sealed containers; determination of pH
标准类型：X04
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：X04
国际标准分类号：67.080.01
适用范围：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.