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1.1 This document contains guidelines to assist public sector organizations to implement a quality management system based on the ISO 9000 series of international quality management standards. It also provides advice for those organizations that may wish to register their quality systems. 1.2 Included in this document is information on the content of the ISO 9000 series as well as background…

Establishes criteria for the purity and describes the test methods for identity tests, residue after ignition, heavy metals content, iron content, appearance of solution. Annex A describes preparation of the standard ammonium cerium(IV) hexanitrate solution.

Establishes criteria for the purity and describes the test methods for heavy metals content, iron content, halides, carbonate, appearance of solution.

Establishes criteria for the purity and describes the test methods for residue after ignition, heavy metals content, iron content, appearance of solution.

Specifies the purity requirements and describes the test methods for insoluble matter, heavy metals content, iron, alkalinity, acidity, sulfide content, pH value, appearance of solution.

Establishes criteria for the purity and describes the test methods for non-volatile matter, heavy metals content, iron content, appearance of solution.

Establishes criteria for the purity and describes the test methods for insoluble matter content, heavy metals content, iron content, alkalinity, reaction to ammoniacal silver nitrate, thiosulfate, appearance of solution.

Applies to gas analyzers using high temperature electrochemical sensors for measurement of oxygen in gas. Applies to both 'in situ' and extractive analyzers installed indoors or outdoors. The contents of the corrigendum of May 1994 have been included in this copy.

The contents of the corrigendum of December 1994 have been included in this copy.