Standard Guide for Combustion, Inert Gas Fusion and Hot Extraction Instruments for use in Analyzing Metals, Ores, and Related Materials

Abstract

5.1 The chemical measurement processes covered by this guide are used for determination of carbon, sulfur, nitrogen, oxygen and hydrogen in metals, ores and related materials. A test method utilizing this guidance is used to test such materials, and also form the basis for quality assurance of these materials. Thus, it is economically and scientifically critical that these instruments be understood by the laboratories that use them. 5.2 It is assumed that all who use this guide will be trained analysts, capable of performing common laboratory procedures skillfully, and safely. It is expected that any work will be performed in a properly equipped laboratory. 5.3 It is expected that the laboratory will prepare their own work procedures for any of the information described in this guide. 5.4 This guide contains numerous references to “manufacturer’s recommendations”. The user of this guide is expected to refer to the instrument operation manual for the specific instrument being used or consult directly with the manufacturer to obtain instructions or recommendations. 5.5 This guide stresses the conservation of certified reference materials (CRMs). CRMs are not to be used for drift checks or conditioning measurements. Other materials should be developed and used for these operations.