ASTM F1500-98(2008)
(Test Method)Standard Test Method for Quantitating Non-UV-Absorbing Nonvolatile Extractables from Microwave Susceptors Utilizing Solvents as Food Simulants
Standard Test Method for Quantitating Non-UV-Absorbing Nonvolatile Extractables from Microwave Susceptors Utilizing Solvents as Food Simulants
SIGNIFICANCE AND USE
This test method was developed to measure non-UV-absorbing nonvolatile extractables that may be present and migrate from a microwave susceptor material during use. It may be a useful procedure to assist in minimizing the amount of non-UV-absorbing nonvolatile extractables either through susceptor design or manufacturing processes.
Supplementation of this procedure with other analytical technologies such as high-pressure liquid chromatography, supercritical fluid chromatography, or infrared or other forms of spectroscopy may provide the analyst with additional information regarding the identification of the components of the non-UV-absorbing nonvolatile extractables in the susceptor.
SCOPE
1.1 This test method is applicable to complete microwave susceptors.
1.2 This test method covers a procedure for quantitating non-UV-absorbing nonvolatile compounds which are extractable when the microwave susceptor is tested under simulated use conditions for a particular food product.
1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: F1500 − 98(Reapproved 2008)
Standard Test Method for
Quantitating Non-UV-Absorbing Nonvolatile Extractables
from Microwave Susceptors Utilizing Solvents as Food
Simulants
This standard is issued under the fixed designation F1500; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.1 microwave susceptor—packaging materials that, when
placed in a microwave field, are designed to interact with the
1.1 This test method is applicable to complete microwave
field and provide substantial heat to the package contents.
susceptors.
3.1.2 nonvolatile extractables—those chemical species
1.2 This test method covers a procedure for quantitating
which released from microwave food packaging under simu-
non-UV-absorbing nonvolatile compounds which are extract-
lated use conditions and are detected using an applicable
able when the microwave susceptor is tested under simulated
nonvolatile extractables method.
use conditions for a particular food product.
1.3 The values stated in SI units are to be regarded as
4. Summary of Test Method
standard. No other units of measurement are included in this
standard.
4.1 Nonvolatile extractables are determined by subjecting a
sample of the susceptor material to microwave heating under
1.4 This standard does not purport to address all of the
simulated use conditions. The sample is washed with solvents
safety concerns, if any, associated with its use. It is the
covering a range of polarities. The solvent washes are com-
responsibility of the user of this standard to establish appro-
bined and the solvents evaporated just to dryness. The residue
priate safety and health practices and determine the applica-
is redissolved in a measured quantity of chloroform and the
bility of regulatory limitations prior to use.
samplesplitforgravimetricorotheranalyses,suchasHPLCor
2. Referenced Documents
IR. For the gravimetric determination, a measured portion of
2.1 ASTM Standards: the sample is filtered and evaporated and the residue weighed.
E260 Practice for Packed Column Gas Chromatography For other analyses, the remainder of the sample is evaporated
E682 Practice for Liquid Chromatography Terms and Rela- and may be reconstituted in dimethylacetamide prior to injec-
tionships tion (see Test Method F1349 for quantitation of UV-absorbing
E685 Practice for Testing Fixed-Wavelength Photometric nonvolatiles by HPLC), or treated appropriately prior to
Detectors Used in Liquid Chromatography
examination by other chromatographic or spectroscopic meth-
F874 Test Method for Temperature Measurement and Pro- ods.
filing for Microwave Susceptors
F1317 Test Method for Calibration of Microwave Ovens
5. Significance and Use
F1349 Test Method for Nonvolatile Ultraviolet (UV) Ab-
5.1 This test method was developed to measure non-UV-
sorbing Extractables from Microwave Susceptors
absorbing nonvolatile extractables that may be present and
3. Terminology migrate from a microwave susceptor material during use. It
may be a useful procedure to assist in minimizing the amount
3.1 Definitions of Terms Specific to This Standard:
of non-UV-absorbing nonvolatile extractables either through
susceptor design or manufacturing processes.
This test method is under the jurisdiction ofASTM Committee F02 on Flexible
Barrier Packaging and is the direct responsibility of Subcommittee F02.15 on
5.2 Supplementation of this procedure with other analytical
Chemical/Safety Properties.
technologies such as high-pressure liquid chromatography,
Current edition approved Oct. 1, 2008. Published November 2008. Originally
supercritical fluid chromatography, or infrared or other forms
approved in 1994. Last previous edition approved in 2003 as F1500 – 98(2003).
DOI: 10.1520/F1500-98R08.
of spectroscopy may provide the analyst with additional
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
information regarding the identification of the components of
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
the non-UV-absorbing nonvolatile extractables in the suscep-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. tor.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1500 − 98 (2008)
6. Apparatus and Reagents 8.2 Determine the sample test conditions by using the
method for temperature profiling of microwave susceptors in
6.1 Microwave Oven, 700 6 35 W, no turntable, calibrated
use in accordance with Test Method F874.
in accordance with Test Method F1317.
8.3 Place the precut susceptor sample into the bottom
6.2 Extraction Cell, Waldorf, described in Test Method
section of the Waldorf cell. Carefully place the polytetrafluo-
F1349.
roethylene polymer (PTFE) gasket on top of the susceptor to
NOTE 1—If the cell is not equipped with a PTFE gasket, cut a gasket
ring to match the size of the sleeve from a ⁄16 -in. PTFE sheet. Use of the prevent tearing when the cell sleeve is threaded in. Thread the
gasket between the sleeve and the sample reduces damage to the sample.
top sleeve of the cell into the bottom section of the cell,
trapping the susceptor sample securely between the gasket and
6.3 Microwave Temperature Measurement System.
the bottom of the cell.
6.4 Temperature Probe, high temperature.
8.4 Carefully insert a temperature probe (6.4) through the
6.5 Beaker, 400-mL borosilicate glass.
small temperature probe port opening of the cell and ensure
6.6 Hexane, analytical reagent grade or better.
that it maintains good contact with the susceptor surface. Insert
a second probe onto a different area of the susceptor in the
6.7 Acetonitrile, analytical reagent grade or better.
same way.
6.8 Methylene Chloride, analytical reagent grade or better.
8.5 Place 50 mL of distilled water and a boiling chip into a
6.9 Chloroform, analytical reagent grade or better.
400-mL beaker and place the beaker in the center rear of the
6.10 Dimethylacetamide, HPLC grade or better.
oven. Place a watchglass over the opening of the Waldorf cell.
6.11 Methanol, analytical reagent grade or better, dried over
8.6 Place the Waldorf cell in the center of the microwave
anhydrous sodium sulfate.
oven, and microwave the sample on high power for the time
6.12 Distilled Water. determined during the temperature profiling procedure.
6.13 Nitrogen, grade suitable for solvent evaporation pur-
8.7 Compare the temperature profiles obtained in 8.6 with
poses.
those obtained from the susceptor in contact with product. If
the two profiles are in reasonable agreement, proceed to 8.8,
6.14 Rotary Evaporator, or equivalent.
otherwise repeat 8.3 through 8.6, using more or less water in
6.15 Weighing Boat, aluminum, formed by shaping alumi-
the beaker to adjust the profile appropriately.
num foil into a round boat approximately 1.5 cm in diameter.
8.8 Without removing the sample, watchglass, or fiber optic
6.16 Filter, 0.45 µm, compatible with chloroform.
probes from the cell, allow the sample to cool for 5 min.
6.17 Round-Bottom Flask, 250 mL, with neck to fit rotary
8.9 Remove the temperature probe(s) from the cell. Rinse
evaporator.
th
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