1、Designation: D 928 03Standard Specification forSodium Bicarbonate1This standard is issued under the fixed designation D 928; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicat
2、es the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers material suitable for use invarious washing, cleaning, and scouring processes, with orwithout soap as conditions demand, and where a mild
3、lyalkaline material is desired. (WarningThis material may behazardous if not properly managed. Precautionary informationfor the safe use, storage, and disposal of this material should bepreliminarily obtained from suppliers and others. In case ofpersonal accident with this material, apply appropriat
4、e first aid;telephone nearest Poison Control Center for assistance, and getmedical attention immediately.)2. Referenced Documents2.1 ASTM Standards:2D 501 Test Methods of Sampling and Chemical Analysis ofAlkaline Detergents3. Ordering Information3.1 Sodium bicarbonate shall be purchased by net weigh
5、t.4. Chemical Composition4.1 Sodium bicarbonate (NaHCO3) as received shall con-form to the following requirements as to chemical composi-tion:Na2CO3, max, % 0.4NaHCO3, min, % 99.6Matter insoluble in water, max, % 0.15. Other Requirements5.1 Sodium bicarbonate shall be a white, uniform powder.Any cak
6、ing shall be capable of being readily disintegrated.6. Methods of Sampling and Analysis6.1 The material shall be sampled and analyzed in accor-dance with Test Methods D 501.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentione
7、din this standard. Users of this standard are expressly advised that 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
8、must be reviewed every five years andif not revised, either reapproved or withdrawn.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
9、theresponsible technical committee, which you may attend. If you feel 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 C
10、700, West Conshohocken, PA 19428-2959,United States. Individual reprints (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 sp
11、ecification is under the jurisdiction of ASTM Committee D12 on Soapsand Other Detergents and is the direct responsibility of Subcommittee D12.12 onAnalysis and Specifications of Soaps, Synthetics, Detergents and their Components.Current edition approved Oct. 1, 2003. Published December 2003. Origina
12、llyapproved in 1947 as D 928 47 T. Discontinued August 2001 and reinstated as D92803. Last previous edition approved in 1987 as D 928 87 (1998).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.
