4.1 These test methods are suitable for process control, for product acceptance, and for research and development.

1.1 These test methods cover the determination of metals in rubber compounding materials by flame atomic absorption.

1.2 The test methods include the following materials:

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 and health practices and determine the applicability of regulatory limitations prior to use. (For a specific warning statement, see 6.1.)

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.