1.1 This test method covers the determination of oxygen in titanium and titanium alloys in concentrations from 0.01 % to 0.5 % and the determination of nitrogen in titanium and titanium alloys in concentrations from 0.003 % to 0.11 %. 1.2 The values stated in both inch-pound and SI units are to be regarded separately as the standard. The values given in parentheses are for information only. 1.3 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. Specific warning statements are given in 8.8.