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1.1 These test methods cover the determination of carbon, sulfur, nitrogen, and oxygen, in steel, iron, nickel, and cobalt alloys having chemical compositions within the following limits:

1.2 The test methods appear in the following order:

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific hazards statements are given in Section 6.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

4.1 This test method is intended for the testing of iron, steel, cobalt, and nickel alloys to verify compliance with compositional specifications such as those issued by Committees A01 and B02. It is assumed that all who use this test method will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that the work will be performed in a properly equipped laboratory.

4.2 Laboratories using this method shall prepare work procedures documenting how the test method is to be implemented in their specific laboratory operation.

4.3 This test method contains numerous references to “manufacturer’s recommendations”. When this statement is used, the user of this method is expected to refer to the instrument operation manual for the specific instrument being used or consult directly with the manufacturer to determine recommendations.