SPIFAN Nutrients ERP Book_9-29-15

MTE-03 Addendum FOR ERP USE ONLY DO NOT DISTRIBUTE

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ISO/CD 15151 | IDF 229

Milk and milk products — Determination of calcium, copper, iron, magnesium, manganese, phosphorus, potassium, sodium and zinc contents - Inductive coupled plasma atomic emission spectrometric method (ICP-AES)

WARNING — The use of this International Standard may involve hazardous materials, operations and reagents. This standard does not propose to address all the safety problems associated with its use. It is the responsibility of the user of this standard to establish safety and health practices and determine the applicability of regulatory limitations prior to use.

1 Scope

This International Standard specifies an inductively coupled plasma atomic emission spectrometric method for the determination of calcium, copper, iron, magnesium, manganese, phosphorus, potassium, sodium, and zinc contents in milk and milk products. The method is applicable for milk, dried milk, cheese, whey, dried whey and infant formula.

2 Normative references

The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 5725-1. Accuracy (trueness and precision) of measurement methods and results. Part 1 : General principles and definitions. ISO 5725-2. Accuracy (trueness and precision) of measurement methods and results . Part 2 : Basic method for the determination of repeatability and reproducibility of a standard measurement method.

3 Terms and definitions

For the purposes of this document, the following terms and definitions apply.

3.1 Calcium, copper, iron, magnesium, manganese, phosphorus, potassium, sodium, and zinc contents mass fraction of substances determined by the procedure specified in this International Standard. NOTE The contents of calcium, magnesium, phosphorus, potassium and sodium are expressed in gram per kilogram. Those for copper, iron, manganese and zinc are expressed in milligram per kilogram.

4 Principle

The organic matter is decomposed by wet digestion using nitric acid in a pressurized microwave assisted wet digestion system or any appropriate instrumentation in wet digestion and diluted. The test

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