ASTM D6556-2007 炭黑的标准试验方法.用氮吸收法测定总的和外部表面积

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                   【英文标准名称】:     Standard Test Method for Carbon Black-Total and External Surface Area by Nitrogen Adsorption            【原文标准名称】:     炭黑的标准试验方法.用氮吸收法测定总的和外部表面积            【标准号】:     ASTM D6556-2007            【标准状态】:     现行            【国别】:                 【发布日期】:     2007    【实施或试行日期】: 【发布单位】: 美国材料与试验协会(US-ASTM)【起草单位】: D24.21【标准类型】: (Test Method)【标准水平】: ()【中文主题词】: 吸收;氮;烟灰;表面;试验方法【英文主题词】: Brunauer/Emmett/Teller;carbon black, B.E.T.;nitrogen adsorption;nitrogen surface area;statistical thickness surface area;surface area by multipoint B.E.T. method, external surface area【摘要】: This test method is used to measure the total and external surface area of carbon blacks based on multipoint nitrogen adsorption. The NSA measurement is based on the B.E.T. theory and it includes the total surface area, inclusive of micropores, pore diameters less than 2 nm (20 E). The external surface area, based on the statistical thickness method (STSA), is defined as the specific surface area that is accessible to rubber. CTAB Surface Area (formerly Test Method D 3765) has been withdrawn. The CTAB value may be estimated from the STSA value using Eq 1. The equation is based on a linear regression of the STSA and CTAB measured values of the SRB 5 standards.1.1 This test method covers the determination of the total surface area by the Brunauer, Emmett, and Teller (B.E.T. NSA) theory of multilayer gas adsorption behavior using multipoint determinations and the external surface area based on the statistical thickness surface area method.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.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. (The minimum safety equipment should include protective gloves, sturdy eye and face protection).【中国标准分类号】: G49【国际标准分类号】: 71_060_10【页数】: 5P.;A4【正文语种】:           
         

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