Документы

ASTM International

Standard Test Method for Ultra Low Nitrogen in Aromatic Hydrocarbons by Oxidative Combustion and Reduced Pressure Chemiluminescence Detection
 N D7184

Annotation

This test method covers the determination of total nitrogen in aromatic hydrocarbons, such as benzene, toluene, and xylene.

This test method is applicable for samples containing nitrogen from 0.1 to 1.2 mg N/kg. For higher nitrogen concentrations refer to Test Method D4629. With careful analytical technique, this method can be used to successfully analyze concentrations below the current scope (see Appendix X1).

In determining the conformance of the test results using this method to applicable specifications; results shall be rounded off in accordance with the rounding-off method of Practice E29.

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

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 specific hazard statements, see Section 9.

*A Summary of Changes section appears at the end of this standard

Автоматический перевод:

Метод стандартной пробы для крайнего низкого азота в ароматических углеводородах окислительным хемилюминесцентным детекторным анализом сгорания и пониженного давления