1、Designation:D91412(Reapproved 2019)Standard Test Methods forEthylcellulose1This standard is issued under the fixed designation D914;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 ind
2、icates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 These test methods cover the testing of ethylcellulose.1.2 The test procedures appear in the following order:SectionsMoisture4 to 6Sulfated Ash7 to 11Chlorides(as S
3、odium Chloride)12 to 16Ethoxyl Content20 to 24Viscosity25 to 391.3 The values stated in SI units are to be regarded asstandard.The values given in parentheses are for informationonly.1.4 WarningMercury has been designated by EPA andmany state agencies as a hazardous material that can causecentral ne
4、rvous system,kidney and liver damage.Mercury,orits vapor,may be hazardous to health and corrosive tomaterials.Caution should be taken when handling mercury andmercury-containing products.See the applicable product Ma-terial Safety Data Sheet(MSDS)for details and EPAs website(http:/www.epa.gov/mercur
5、y/faq.htm)for additional informa-tion.Users should be aware that selling mercury or mercury-containing products,or both,in your state may be prohibited bystate law.1.5 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the us
6、er of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.6 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in t
7、he Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D362 Specification for Industrial Grade Toluene(Withdrawn1989)3D446 Specificat
8、ions and Operating Instructions for GlassCapillary Kinematic ViscometersD841 Specification for Nitration Grade TolueneD4794 Test Method for Determination of Ethoxyl or Hy-droxyethoxyl Substitution in Cellulose Ether Products byGas ChromatographyE2251 Specification for Liquid-in-Glass ASTM Thermom-et
9、ers with Low-Hazard Precision Liquids3.Purity of Reagents and Materials3.1 Reagent grade chemicals shall be used in all tests.Unless otherwise indicated,all of the reagents used shallconform to the specifications of the Committee on AnalyticalReagents of the American Chemical Society,where suchspeci
10、fications are available.4Where such specifications havenot been established,reagents of the best grade available shallbe used.References to water shall be understood to meandistilled water.MOISTURE4.Scope4.1 This test method covers the determination of the volatilecontent of ethylcellulose.4.2 This
11、international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for the1These test methods are under the jurisdiction of ASTM Committee D01 onPaint and Related Coatings,Materials,and Applications and are the
12、 directresponsibility of Subcommittee D01.36 on Cellulose and Cellulose Derivatives.Current edition approved Dec.1,2019.Published December 2019.Originallyapproved in 1947.Last previous edition approved in 2012 as D914 12.DOI:10.1520/D0914-12R19.2For referenced ASTM standards,visit the ASTM website,w
13、ww.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.3The last approved version of this historical standard is referenced onwww.astm.org.4ACS Reagent Chemicals,Specifications
14、 and Procedures for Reagents andStandard-Grade Reference Materials,American Chemical Society,Washington,DC.For suggestions on the testing of reagents not listed by the American ChemicalSociety,see Analar Standards for Laboratory Chemicals,BDH Ltd.,Poole,Dorset,U.K.,and the United States Pharmacopeia
15、 and National Formulary,U.S.Pharma-copeial Convention,Inc.(USPC),Rockville,MD.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 standardizat
16、ion 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.Development of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.5.Significance and Use5.1 The results of this test are used for calculating the totalsolids in the sample and,by common usage,all materialsvolatile at th
