3.1 This sample preparation procedure may be used to prepare metallographic samples for Guide B657. It does not include all variations of sample preparation.

1.1 This guide prescribes a method for preparing cemented carbides for metallographic examination.

1.2 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.

1.3 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.