1、Designation: C 324 01 (Reapproved 2007)Standard Test Method forFree Moisture in Ceramic Whiteware Clays1This standard is issued under the fixed designation C 324; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last rev
2、ision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers the determination of freemoisture in ceramic whiteware clays. Whiteware clays may beshipped as a bulk
3、 shipment in lumps, a bulk shipment ofshredded or coarsely ground clay, or in bagged lots of groundor airfloated clay. Directions are given in this test method forobtaining representative samples of the clay shipment to beused in subsequent tests for the properties of the clay in theshipment.1.2 Thi
4、s standard does not purport to address all of thesafetyconcerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents
5、2.1 ASTM Standards:2C 332 Specification for Lightweight Aggregates for Insulat-ing Concrete3. Sampling3.1 The sample shall be obtained in accordance with Speci-fication C 322. The sample submitted for testing shall weighnot less than 1000 g and shall be kept in an airtight containerto prevent loss o
6、f water before testing.4. Procedure4.1 Remove the sample of clay from its container. Weighabout 500 g of the sample to the nearest 0.1 g. Spread out theweighed portion of the sample in a weighed shallow metal orporcelain container, and dry at 100 to 110C for 24 h in adrying oven. Reweigh the dried c
7、lay, as quickly as possible, tothe nearest 0.1 g.5. Calculation5.1 Calculate the percentage of free moisture to the nearest0.1 % as follows:Free moisture, dry weight basis, % 5 A 2 B!/B# 3 100 (1)Free moisture, wet weight basis, % 5 A 2 B!/A# 3 100 (2)where:A = “as-received” weight of the portion of
8、 the sample usedandB = weight of sample after drying.6. Keywords6.1 ceramic whiteware clays; free moistureASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised tha
9、t determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reappro
10、ved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you fe
11、el that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual rep
12、rints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).1This test method is under the jurisdiction ofASTM Committee C21 on Ceramic
13、Whitewares and Related Products and is the direct responsibility of SubcommitteeC21.04 on Raw Materials.Current edition approved May 1, 2007. Published May 2007. Originallyapproved in 1953. Last previous edition approved in 2001 as C 324 01e1.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
