ASTM F1500-98(2003)
(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 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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation:F1500–98 (Reapproved 2003)
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 F 1500; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.2 nonvolatile extractables—those chemical species
which released from microwave food packaging under simu-
1.1 This test method is applicable to complete microwave
lated use conditions and are detected using an applicable
susceptors.
nonvolatile extractables method.
1.2 This test method covers a procedure for quantitating
non-UV-absorbing nonvolatile compounds which are extract-
4. Summary of Test Method
able when the microwave susceptor is tested under simulated
4.1 Nonvolatile extractables are determined by subjecting a
use conditions for a particular food product.
sample of the susceptor material to microwave heating under
1.3 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
the sample is filtered and evaporated and the residue weighed.
2.1 ASTM Standards:
For other analyses, the remainder of the sample is evaporated
E 260 Practice for Packed Column Gas Chromatography
and may be reconstituted in dimethylacetamide prior to injec-
E 682 Practice for Liquid Chromatography Terms and Re-
tion (see Test Method F 1349 for quantitation of UV-absorbing
lationships
nonvolatiles by HPLC), or treated appropriately prior to
E 685 Practice for Testing Fixed-Wavelength Photometric
examination by other chromatographic or spectroscopic meth-
Detectors Used in Liquid Chromatography
ods.
F 874 Test Method for Temperature Measurement and Pro-
filing for Microwave Susceptors
5. Significance and Use
F 1317 Test Method for Calibration of Microwave Ovens
5.1 This test method was developed to measure non-UV-
F 1349 Test Method for Nonvolatile Ultraviolet (UV) Ab-
absorbing nonvolatile extractables that may be present and
sorbing Extractables from Microwave Susceptors
migrate from a microwave susceptor material during use. It
3. Terminology may be a useful procedure to assist in minimizing the amount
of non-UV-absorbing nonvolatile extractables either through
3.1 Definitions of Terms Specific to This Standard:
susceptor design or manufacturing processes.
3.1.1 microwave susceptor—packaging materials that,
5.2 Supplementation of this procedure with other analytical
when placed in a microwave field, are designed to interact with
technologies such as high-pressure liquid chromatography,
the field and provide substantial heat to the package contents.
supercritical fluid chromatography, or infrared or other forms
of spectroscopy may provide the analyst with additional
This test method is under the jurisdiction ofASTM Committee F02 on Flexible
information regarding the identification of the components of
Barrier Materials and is the direct responsibility of Subcommittee F02.15 on
the non-UV-absorbing nonvolatile extractables in the suscep-
Chemical/Safety Properties.
tor.
Current edition approved Oct. 10, 1998. Published January 1999. Originally
published as F 1500 - 94. Last previous edition F 1500 – 94.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 6. Apparatus and Reagents
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.1 Microwave Oven, 700 6 35 W, no turntable, calibrated
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. in accordance with Test Method F 1317.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F1500–98 (2003)
6.2 Extraction Cell, Waldorf, described in Test Method roethylene polymer (PTFE) gasket on top of the susceptor to
F 1349. prevent tearing when the cell sleeve is threaded in. Thread the
6.3 Microwave Temperature Measurement System. top sleeve of the cell into the bottom section of the cell,
6.4 Temperature Probe, high temperature. trapping the susceptor sample securely between the gasket and
6.5 Beaker, 400-mL borosilicate glass. the bottom of the cell.
6.6 Hexane, analytical reagent grade or better. 8.4 Carefully insert a temperature probe (6.4) through the
6.7 Acetonitrile, analytical reagent grade or better.
small temperature probe port opening of the cell and ensure
6.8 Methylene Chloride, analytical reagent grade or better. that it maintains good contact with the susceptor surface. Insert
6.9 Chloroform, analytical reagent grade or better.
a second probe onto a different area of the susceptor in the
6.10 Dimethylacetamide, HPLC grade or better. same way.
6.11 Methanol, analytical reagent grade or better, dried over
8.5 Place 50 mL of distilled water and a boiling chip into a
anhydrous sodium sulfate.
400-mL beaker and place the beaker in the center rear of the
6.12 Distilled Water.
oven. Place a watchglass over the opening of the Waldorf cell.
6.13 Nitrogen, grade suitable for solvent evaporation pur-
8.6 Place the Waldorf cell in the center of the microwave
poses.
oven, and microwave the sample on high power for the time
6.14 Rotary Evaporator, or equivalent.
determined during the temperature profiling procedure.
6.15 Weighing Boat, aluminum, formed by shaping alumi-
8.7 Compare the temperature profiles obtained in 8.6 with
num foil into a round boat approximately 1.5 cm in diameter.
those obtained from the susceptor in contact with product. If
6.16 Filter, 0.45 µm, compatible with chloroform.
the two profiles are in reasonable agreement, proceed to 8.8,
6.17 Round-Bottom Flask, 250 mL, with neck to fit rotary
otherwise repeat 8.3 through 8.6, using more or less water in
evaporator.
the beaker to adjust the profile appropriately.
6.18 Vial,20mL.
8.8 Without removing the sample, watchglass, or fiber optic
6.19 Heat Lamp, 125 W, or equivalent.
probes from the cell, allow the sample to cool for 5 min.
6.20 Boiling Stones.
8.9 Remove the temperature probe(s) from the cell. Rinse
6.21 Watchglass, 8.5 or 9.0-cm diameter.
the bottom of the watchglass covering the Waldorf cell with 20
mL of hexane, pouring the solvent into the cell. Swirl the
7. Sampling
solvent in the cell for 10 s, then pour it into a 250-mL
7.1 The sample of microwave susceptor selected for extrac-
roundbottom flask. Repeat using a second 20-mL aliquot of
tion should be representative of the entire susceptor.
hexane.
7.2 The sample should be undamaged, that is, lamination
8.10 Repeat 8.9 using two 20-mL aliquots of methylene
intact, uncreased (unless this is the normal configuration) and
chloride.
unaltered.
8.11 Repeat 8.9 using two 20-mL aliquots of acetonitr
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