This standard is issued under the fixed designation C 115; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. | Designation C 115 96a Standard Test Method for Fineness of Portland Cement by the Turbidimeter1 This standard is issued under the fixed ches ii r i tion c 115 the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon e indicates an editorial change since the last revision or reapproval. 1. Scope This test method covers determination of the fineness of portland cement as represented by a calculated measure of specific surface. expressed as square ccntilnclrcs of tooal surface area per gram or square metres of total surface area per kilogram of cement using the Wagner 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 values stated in SI units are to regarded as the standard. The inch-pound equivalents may be approximate. 2. Referenced Documents ASTM Standards C 114 Test Methods for Chemical Analysis of Hydraulic Cement3 C 430 Test Method for Fineness of Hydraulic Cement by the 45-pm No. 325 Sieve3 C 670 Practice for Preparing Precision and Bias Statements for Test Methods for Construction Materials4 3. Significance and Use The purpose of this test method is to determine ihether or not the hydraulic cement under test meets the Wagner turbidimetric fneness requirements of the applicable hydraulic cement specifcation for ihich the test is being made. Fineness of the cement component is only one of the many characteristics that inline nee the stecr igth capabilities of condOc. 4. Apparatus Nature of Apparatus The Wagner turbidimeSer consísss essentially of a source of light maintained at constant intensity 1 This test method is under .
