1、Designation:D615016Standard Test Method forEstimating Processing Losses of Plastisols and OrganosolsDue to Volatility1This standard is issued under the fixed designation D6150;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year
2、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.Scope*1.1 This test method describes a procedure for the determi-nation of the relative volatility of polyvinyl chloride plastiso
3、lsand organosols at elevated temperatures.1.2 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.3 The text of this standard references notes and footnoteswhich provide explanatory material.These notes and footnotes,excluding tho
4、se in tables and figures,shall not be considered asrequirements of this standard.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and deter
5、mine the applica-bility of regulatory limitations prior to use.NOTE1There is no known ISO equivalent to this standard.2.Referenced Documents2.1 ASTM Standards:2D618 Practice for Conditioning Plastics for TestingD883 Terminology Relating to PlasticsD1600 Terminology forAbbreviated Terms Relating to P
6、las-ticsE145 Specification for Gravity-Convection and Forced-Ventilation OvensE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method3.Terminology3.1 DefinitionsThe terms used in this te
7、st method are inaccordance with Terminology D883 and abbreviations are inaccordance with Terminology D1600,unless otherwise indi-cated.4.Summary of Test Method4.1 Plastisols or organosols are weighed in aluminum dishesand heated in a circulating air oven at 177C(350F)for 10min.The specimens are remo
8、ved from the oven,cooled,andreweighed.The weight loss is determined and reported aseither percent weight loss or weight loss per unit area ofexposed surface.5.Significance and Use5.1 The volatile components of a plastisol or organosolinfluence the weight loss during processing.It is possible thatthi
9、s information will be useful to the producer and user and toenvironmental interests for estimating the volatiles emitted bythe plastisol or organosol during processing.5.2 Results obtained by this test method are not strictlyequivalent to those experienced during product processingwherein conditions
10、 of temperature,air flow,coating mass,andconfiguration are potentially quite different.5.3 This test method is not necessarily applicable to alltypes of plastisol and organosol applications.Any change inthe specified testing time or temperature to accommodateunique applications shall be included in
11、the report(see 7.3).6.Apparatus6.1 Oven,forcedventilation laboratory oven,Type II,Grade A,with 100 to 200 air exchanges/h as specified inSpecification E145.6.1.1 It is acceptable to use a rotating turntable drive at arate of 1 to 6.6.1.2 It is acceptable to use a tray to fit the turntable tominimize
12、 the temperature drop in the oven.6.2 Aluminum Foil Dishes,57 mm in diameter by 18 mmhigh with a smooth(planar)bottom surface.1This test method is under the jurisdiction of ASTM Committee D20 on Plasticsand is the direct responsibility of Subcommittee D20.15 on ThermoplasticMaterials,Section D20.15.
13、07 on Vinyl Chloride Polymers.Current edition approved May 1,2016.Published May 2016.Originallyapproved in 1997.Last previous edition approved in 2015 as D6150-15.DOI:10.1520/D6150-16.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.or
14、g.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 7.Proce
15、dure7.1 Ensure the plastisol or organosol is homogeneous.Ifnecessary,mix the sample by hand or mechanical stirrer untilhomogeneous and deaerate.7.2 Tare three aluminum dishes to the nearest 0.1 mg.7.3 Add the plastisol or organosol specimen in such amanner as to entirely cover the bottom of the dish
16、.The weightadded to each dish shall vary by only 60.1 g of the selectedweight.If the thickness of the final product cannot be accu-rately determined,add 6.0 6 0.1 g to each dish.NOTE2Amore representative measurement of weight loss is possibleif the thickness of the sample in the aluminum dish approaches thethickness of the material during processing.The weight of the specimensadded to the dish is allowed to vary according to the application.7.4 Reweigh the dishes to the nearest 0.1 mg.7.5 Place