分享
ASTM_D_928_-_03_2017.pdf
下载文档

ID:168190

大小:56.76KB

页数:1页

格式:PDF

时间:2023-03-04

收藏 分享赚钱
温馨提示:
1. 部分包含数学公式或PPT动画的文件,查看预览时可能会显示错乱或异常,文件下载后无此问题,请放心下载。
2. 本文档由用户上传,版权归属用户,汇文网负责整理代发布。如果您对本文档版权有争议请及时联系客服。
3. 下载前请仔细阅读文档内容,确认文档内容符合您的需求后进行下载,若出现内容与标题不符可向本站投诉处理。
4. 下载文档时可能由于网络波动等原因无法下载或下载错误,付费完成后未能成功下载的用户请联系客服处理。
网站客服:3074922707
TM_D_928_ _03_2017
Designation:D92803(Reapproved 2017)Standard Specification forSodium Bicarbonate1This standard is issued under the fixed designation D928;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 indicates the year of last reapproval.Asuperscript epsilon()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 mildlyalkaline 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 appropriate first aid;telephone nearest Poison Control Center for assistance,and getmedical attention immediately.)2.Referenced Documents2.1 ASTM Standards:2D501 Test Methods of Sampling and Chemical Analysis ofAlkaline Detergents3.Ordering Information3.1 Sodium bicarbonate shall be purchased by net weight.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 caking 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 D501.ASTM 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 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by the responsible technical committee and must be reviewed every five years andif not revised,either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters.Your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 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 C700,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).Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center,222Rosewood Drive,Danvers,MA 01923,Tel:(978)646-2600;http:/ specification 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 Jan.1,2017.Published February 2017.Originallyapproved in 1947 as D928 47 T.Discontinued August 2001 and reinstated asD92803.Last previous edition approved in 2009 as D928 03(2009).DOI:10.1520/D0928-03R17.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1

此文档下载收益归作者所有

下载文档
你可能关注的文档
收起
展开