1、Designation:D680107(Reapproved 2021)Standard Test Method forMeasuring Maximum Spontaneous Heating Temperature ofArt and Other Materials1This standard is issued under the fixed designation D6801;the number immediately following the designation indicates the year oforiginal adoption or,in the case of
2、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 test method covers a small-scale laboratory proce-dure to determine the self heating tendency of
3、oil-basedmaterials by exposure to elevated temperatures in air in acontrolled semi-adiabatic system.1.2 This test method has been developed to address anurgent need to identify oil-based materials that may requirelabeling for spontaneous heating tendency.Studies based onthis test method may allow th
4、e development of a practice toidentify such oil-based materials.1.3 The values stated in SI units are to be regarded asstandard.The values given in parentheses are for informationonly.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresp
5、onsibility of the user of this standard to establish appro-priate safety,health,and environmental practices and deter-mine the applicability of regulatory limitations prior to use.For safety concerns specific to disposal of solvent-soaked rags,see Appendix X1.1.5 This international standard was deve
6、loped in accor-dance with internationally recognized principles on standard-ization established in the 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 Documen
7、ts2.1 ASTM Standards:2E633 Guide for Use of Thermocouples in Elevated-Temperature Mechanical TestingE771 Test Method for Spontaneous Heating Tendency ofMaterials(Withdrawn 2001)33.Terminology3.1 Definitions:3.1.1 maximumspontaneousheatingtemperature,nmaximum temperature reached during spontaneous he
8、atingunder the specified test conditions.3.1.2 oil-based materials,nseed and nut oils or materialsthat contain such oils.3.1.3 spontaneous heating,nexothermic reaction of amaterial due to slow or incomplete reaction that results in atemperature rise above that of its surroundings(see TestMethod E771
9、);also called self heating.3.2 Symbols:3.2.1 TDdifference between maximum spontaneous heat-ing temperature and control temperature.3.2.2 TSmaximum spontaneous heating temperature.3.2.3 TCcontrol temperature or maximum spontaneoustemperature measured over 1 h immediately preceding thebeginning of an
10、experiment.4.Summary of Test Method4.1 A non-woven paper cloth is covered uniformly in9.0 mL of test material mixed with 0.25 mL of 6 to 10%manganese drier.This covered pad is then put in a smallstainless steel holder with air holes in the sides.This holder isplaced in a larger chamber,which is open
11、ed to the air from thetop and heated until peak temperature is reached.The maxi-mum spontaneous heating temperature inside the soaked papercloth is recorded with a K thermocouple and maximumtemperature recorder with the base temperature adjusted to 706 2C.5.Significance and Use5.1 This test method p
12、rovides a means of accelerating thetendency of a material toward spontaneous heating that mayeventually lead to a fire.It is applicable to liquids and pastes.1This test method is under the jurisdiction of ASTM Committee D01 on Paintand Related Coatings,Materials,and Applications and is the direct re
13、sponsibility ofSubcommittee D01.57 on Artist Paints and Related Materials.Current edition approved Nov.1,2021.Published November 2021.Originallyapproved in 2000.Last previous edition approved in 2015 as D6801 07(2015).DOI:10.1520/D6801-07R21.2For referenced ASTM standards,visit the ASTM website,www.
14、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.Copyright ASTM International,100 Barr Ha
15、rbor 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
16、 issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1?5.2 The spontaneous heating behavior of an oil-based ma-terial is affected by such factors as the availability of oxygen,the amount of driers present,the degree of polymerization ofoils,the surface area of the cellulose material,measures toprevent heat dissipation,and the amount of oil in contact withcellulose material.The degree of spontaneous heating bearslittle relationship to the type of cellulose material to
