1.1本试验方法涵盖炭黑比表面积的测量，不包括太小而无法容纳十六烷基三甲基溴化铵（十六烷基三甲基溴化铵，通常称为CTAB）的微孔中所含的面积。然而，应注意的是，测量外表面面积的首选方法是STSA（试验方法D 6556），并且CTAB方法由ASTM国际组织保留，以便实验室有时间获得适当的仪器。 1.2以国际单位制表示的数值应视为标准。括号中给出的值仅供参考。 1.3 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。

1.1 This test method covers the measurement of specific surface area of carbon black exclusive of area contained in micropores too small to admit hexadecyltrimethyl ammonium bromide (cetyltrimethyl ammonium bromide, commonly referred to as CTAB). However, it should be noted that the preferred method for measuring external surface area is STSA (Test Method D 6556), and the CTAB method is being maintained by ASTM International in order to allow time for laboratories to obtain the proper instrumentation. 1.2 The values stated in SI units are to be regarded 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.