1、Designation:F151998(Reapproved 2014)Standard Test Method forQualitative Analysis of Volatile Extractables in MicrowaveSusceptors Used to Heat Food Products1This standard is issued under the fixed designation F1519;the number immediately following the designation indicates the year oforiginal adoptio
2、n 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 test method is applicable to complete microwavesusceptors.1.2 This test metho
3、d covers a procedure for identifyingvolatile extractables which are released when a microwavesusceptor sample is tested under simulated end use conditions.The extractables are identified using gas chromatography/massspectrometry(GC/MS).1.3 This test method was evaluated for the identification ofa va
4、riety of volatile extractables at a level of 0.010 g/in.2ofsusceptor surface.For extractables not evaluated,the analystshould perform studies to determine the level of extractable atwhich identification is achievable.1.4 The analyst is encouraged to run known volatile extract-ablesand/orincorporatet
5、echniquessuchasgaschromatography/high resolution mass spectrometry(GC/HRMS),gas chromatography/infrared spectroscopy(GC/IR)or other techniques to aid in verifying the identity of oridentifying unknown volatile extractables.The analyst is re-ferred to Practice E260 for additional guidance.1.5 The val
6、ues stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.6 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
7、 and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2E260 Practice for Packed Column Gas ChromatographyF874 Test Method for Temperature Measurement and Pro-filing for Microwave SusceptorsF1308 Test Method for Quantita
8、ting Volatile Extractables inMicrowave Susceptors Used for Food ProductsF1317 Test Method for Calibration of Microwave Ovens3.Terminology3.1 Definitions:3.1.1 diffusion trappingthe collection of volatile extract-ables on an adsorbent by means of the mass diffusion of thevolatile extractables(1).33.1
9、.2 microwave susceptorspackaging material which,when placed in a microwave field interacts with the field andprovides heating for the food products the package contains.3.1.3 volatile extractablesthose compounds that give 50%recovery in spike and recovery studies using the appli-cable volatile extra
10、ctables method.Extractability does notnecessarily imply migration of the extractable species to thefood product being heated on the susceptor.4.Summary of Test Method4.1 The volatile extractables are released from the susceptorwhen it has been heated to its end use heating conditions(temperature and
11、 heating time)using a thermostatically con-trolled oil bath or calibrated microwave oven.The releasedvolatile extractables are concentrated by diffusion trapping onan adsorbent.After adsorption is complete,the adsorbent isheated to desorb the volatile extractables onto a gas chromato-graphic column(
12、Refs 12).The volatile extractables are thenseparated using a gas chromatograph and detected by a massspectrometer.The volatile extractable identifications are con-firmed by comparing their retention times and mass spectra toreference compounds under identical GC/MS conditions.5.Significance and Use5
13、.1 This test method is intended to identify volatile extract-ables that may be emitted from microwave susceptor materialduring use.It may be a useful procedure to assist in minimizingthe amount and type of volatile extractables produced.The1This test method is under the jurisdiction ofASTM Committee
14、 F02 on FlexibleBarrier Packaging and is the direct responsibility of Subcommittee F02.15 onChemical/Safety Properties.Current edition approved April 1,2014.Published April 2014.Originallyapproved in 1994.Last previous edition approved in 2008 as F1519 98(2008).DOI:10.1520/F1519-98R14.2For reference
15、d 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.3The boldface numbers in parentheses refer to a list of references at the end of
16、this test method.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 susceptor design,materials used or manufacturing processesinvolved can be evaluated.6.Interferences6.1 Gas Chromatography/Mass SpectrometryThe GCconditions or column given may not exhibit sufficient resolu-tion to identify all the volatile extractables.Alternate tech-niques should be used to identify the unresolved volatileextractables such as alternate GC conditions,an
