ASTM D5814-18
(Practice)Standard Practice for Determination of Contamination in Recycled Poly(Ethylene Terephthalate) (PET) Flakes and Chips Using a Plaque Test
Standard Practice for Determination of Contamination in Recycled Poly(Ethylene Terephthalate) (PET) Flakes and Chips Using a Plaque Test
SIGNIFICANCE AND USE
5.1 Presence of paper, metal, or incompatible polymer contamination in poly(ethylene terephthalate) renders the recycled polymer unfit for use in secondary product manufacturing operations. This procedure is useful for identifying different types of contamination in recycled PET flakes.
SCOPE
1.1 This practice covers an indication of the quality of recycled transparent poly(ethylene terephthalate) by examination of a wafer or plaque formed by melting a representative sample and quenching it to prevent crystallization.
1.2 Specific contaminants and impurities such as aluminum particles, dirt particles, paper, and fibers are identified in the transparent wafer.
1.3 The overall color of the plaque is indicative of oxidizable contaminants such as ethylene-vinyl acetate (EVA) glue residue and the number of bubbles present in the plaque gives an indication of the moisture content of the sample.
1.4 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 8.
Note 1: There is no known ISO equivalent to this standard.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D5814 − 18
Standard Practice for
Determination of Contamination in Recycled Poly(Ethylene
1
Terephthalate) (PET) Flakes and Chips Using a Plaque Test
This standard is issued under the fixed designation D5814; 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* D1600 Terminology forAbbreviatedTerms Relating to Plas-
tics
1.1 This practice covers an indication of the quality of
IEEE/ASTM SI 10 Standard for Use of the International
recycled transparent poly(ethylene terephthalate) by examina-
System of Units (SI): The Modern Metric System
tion of a wafer or plaque formed by melting a representative
sample and quenching it to prevent crystallization.
3. Terminology
1.2 Specific contaminants and impurities such as aluminum
3.1 Definitions—The terminology used in this practice is in
particles, dirt particles, paper, and fibers are identified in the
accordancewithTerminologyD1600.Unitsandsymbolsarein
transparent wafer.
accordance with IEEE/ASTM SI 10: Standard for Use of the
1.3 The overall color of the plaque is indicative of oxidiz-
International System of Units (SI).
able contaminants such as ethylene-vinyl acetate (EVA) glue
3.2 Definitions of Terms Specific to This Standard:
residue and the number of bubbles present in the plaque gives
an indication of the moisture content of the sample. 3.2.1 plaque—a transparent wafer resulting from melting
and rapid quenching of the polymer.
1.4 Units—The values stated in SI units are to be regarded
as standard. No other units of measurement are included in this
4. Summary of Test Method
standard.
4.1 Transparent poly(ethylene terephthalate) flakes are
1.5 This standard does not purport to address all of the
melted in an aluminum pan, then the molten sample is rapidly
safety concerns, if any, associated with its use. It is the
quenched in ice water to prevent crystallization. The resulting
responsibility of the user of this standard to establish appro-
clear plaque is examined for color indicative of oxidizable
priate safety, health, and environmental practices and deter-
contaminants, bubbles indicative of moisture, and solid con-
mine the applicability of regulatory limitations prior to use.
taminant particles.
Specific precautionary statements are given in Section 8.
NOTE 1—There is no known ISO equivalent to this standard.
5. Significance and Use
1.6 This international standard was developed in accor-
5.1 Presence of paper, metal, or incompatible polymer
dance with internationally recognized principles on standard-
contamination in poly(ethylene terephthalate) renders the re-
ization established in the Decision on Principles for the
cycled polymer unfit for use in secondary product manufactur-
Development of International Standards, Guides and Recom-
ing operations. This procedure is useful for identifying differ-
mendations issued by the World Trade Organization Technical
ent types of contamination in recycled PET flakes.
Barriers to Trade (TBT) Committee.
6. Apparatus
2. Referenced Documents
2
6.1 Oven, forced convection type capable of heating
2.1 ASTM Standards:
samples to 300°C.
6.2 Tongs, long arm.
1
This practice is under the jurisdiction ofASTM Committee D20 on Plastics and
is the direct responsibility of Subcommittee D20.95 on Recycled Plastics.
6.3 Stopwatch, 0.1-s accuracy.
Current edition approved Aug. 1, 2018. Published September 2018. Originally
approved in 1995. Last previous edition approved in 2010 as D5814 – 10. 6.4 Bucket, 1 L, stainless steel.
DOI:10.1520/D5814-18.
2
6.5 Aluminum Weighing Dishes, 57 mm diameter by 16 mm
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
deep (60 mL capacity).
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 6.6 Thermally Insulated Gloves.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D5814 − 18
7. Materials 9.6 Prepare an ice water bath by filling the 1-L bucket with
cold tap water. Add ice and decant off some of the water to
7.1 Virgin Poly(ethylene terephthalate).
maintain a 5-cm floating ice level on the surface of the water.
7.2 Ice.
The bucket should be about 90 % full with the ice and water
slurry. Place the
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: D5814 − 10 D5814 − 18
Standard Practice for
Determination of Contamination in Recycled Poly(Ethylene
1
Terephthalate) (PET) Flakes and Chips Using a Plaque Test
This standard is issued under the fixed designation D5814; 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*
1.1 This practice covers an indication of the quality of recycled transparent poly(ethylene terephthalate) by examination of a
wafer or plaque formed by melting a representative sample and quenching it to prevent crystallization.
1.2 Specific contaminants and impurities such as aluminum particles, dirt particles, paper, and fibers are identified in the
transparent wafer.
1.3 The overall color of the plaque is indicative of oxidizable contaminants such as ethylene-vinyl acetate (EVA) glue residue
and the number of bubbles present in the plaque gives an indication of the moisture content of the sample.
1.4 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this
standard.
1.5 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 safety, health, and healthenvironmental practices and determine the
applicability of regulatory limitations prior to use. Specific precautionary statements are given in Section 8.
NOTE 1—There is no known ISO equivalent to this standard.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
D1600 Terminology for Abbreviated Terms Relating to Plastics
3
D5033 Guide for Development of ASTM Standards Relating to Recycling and Use of Recycled Plastics (Withdrawn 2007)
IEEE/ASTM SI 10 Standard for Use of the International System of Units (SI): The Modern Metric System
3. Terminology
3.1 Definitions: Definitions—The terminology used in this practice is in accordance with Terminology D1600 and Guide D5033.
Units and symbols are in accordance with IEEE/ASTM SI 10: Standard for Use of the International System of Units (SI).
3.2 Definitions of Terms Specific to This Standard:
3.2.1 plaque—a transparent wafer resulting from melting and rapid quenching of the polymer.
4. Summary of Test Method
4.1 Transparent poly(ethylene terephthalate) flakes are melted in an aluminum pan, then the molten sample is rapidly quenched
in ice water to prevent crystallization. The resulting clear plaque is examined for color indicative of oxidizable contaminants,
bubbles indicative of moisture, and solid contaminant particles.
1
This practice is under the jurisdiction of ASTM Committee D20 on Plastics and is the direct responsibility of Subcommittee D20.95 on Recycled Plastics.
Current edition approved Dec. 1, 2010Aug. 1, 2018. Published January 2011September 2018. Originally approved in 1995. Last previous edition approved in 20022010
as D5814 – 02.D5814 – 10. DOI:10.1520/D5814-10. DOI:10.1520/D5814-18.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D5814 − 18
5. Significance and Use
5.1 Presence of paper, metal, or incompatible polymer contamination in poly(ethylene terephthalate) renders the recycled
polymer unfit for use in secondary product manufacturing operations. This procedure is useful for identifying different types of
contamination in recycled PET flakes.
6. Apparatus
6.1 Oven, forced convection type capable of heating samples to 300°C.
6.2 Tongs, long arm.
6.3 Stopwatch, 0.1-s accuracy.
6.4 Bucket, 1 L, stainless steel.
6.5 Aluminum Weighing Dishes.Dishes, 57 mm diameter by 16 mm deep (60 mL capacity).
6.6 Therma
...
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: D5814 − 18
Standard Practice for
Determination of Contamination in Recycled Poly(Ethylene
1
Terephthalate) (PET) Flakes and Chips Using a Plaque Test
This standard is issued under the fixed designation D5814; 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* D1600 Terminology for Abbreviated Terms Relating to Plas-
tics
1.1 This practice covers an indication of the quality of
IEEE/ASTM SI 10 Standard for Use of the International
recycled transparent poly(ethylene terephthalate) by examina-
System of Units (SI): The Modern Metric System
tion of a wafer or plaque formed by melting a representative
sample and quenching it to prevent crystallization.
3. Terminology
1.2 Specific contaminants and impurities such as aluminum
3.1 Definitions—The terminology used in this practice is in
particles, dirt particles, paper, and fibers are identified in the
accordance with Terminology D1600. Units and symbols are in
transparent wafer.
accordance with IEEE/ASTM SI 10: Standard for Use of the
1.3 The overall color of the plaque is indicative of oxidiz-
International System of Units (SI).
able contaminants such as ethylene-vinyl acetate (EVA) glue
3.2 Definitions of Terms Specific to This Standard:
residue and the number of bubbles present in the plaque gives
3.2.1 plaque—a transparent wafer resulting from melting
an indication of the moisture content of the sample.
and rapid quenching of the polymer.
1.4 Units—The values stated in SI units are to be regarded
as standard. No other units of measurement are included in this
4. Summary of Test Method
standard.
4.1 Transparent poly(ethylene terephthalate) flakes are
1.5 This standard does not purport to address all of the
melted in an aluminum pan, then the molten sample is rapidly
safety concerns, if any, associated with its use. It is the
quenched in ice water to prevent crystallization. The resulting
responsibility of the user of this standard to establish appro-
clear plaque is examined for color indicative of oxidizable
priate safety, health, and environmental practices and deter-
contaminants, bubbles indicative of moisture, and solid con-
mine the applicability of regulatory limitations prior to use.
taminant particles.
Specific precautionary statements are given in Section 8.
NOTE 1—There is no known ISO equivalent to this standard.
5. Significance and Use
1.6 This international standard was developed in accor-
5.1 Presence of paper, metal, or incompatible polymer
dance with internationally recognized principles on standard-
contamination in poly(ethylene terephthalate) renders the re-
ization established in the Decision on Principles for the
cycled polymer unfit for use in secondary product manufactur-
Development of International Standards, Guides and Recom-
ing operations. This procedure is useful for identifying differ-
mendations issued by the World Trade Organization Technical
ent types of contamination in recycled PET flakes.
Barriers to Trade (TBT) Committee.
6. Apparatus
2. Referenced Documents
2
2.1 ASTM Standards: 6.1 Oven, forced convection type capable of heating
samples to 300°C.
6.2 Tongs, long arm.
1
This practice is under the jurisdiction of ASTM Committee D20 on Plastics and
is the direct responsibility of Subcommittee D20.95 on Recycled Plastics. 6.3 Stopwatch, 0.1-s accuracy.
Current edition approved Aug. 1, 2018. Published September 2018. Originally
6.4 Bucket, 1 L, stainless steel.
approved in 1995. Last previous edition approved in 2010 as D5814 – 10.
DOI:10.1520/D5814-18.
2
6.5 Aluminum Weighing Dishes, 57 mm diameter by 16 mm
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
deep (60 mL capacity).
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 6.6 Thermally Insulated Gloves.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D5814 − 18
7. Materials 9.6 Prepare an ice water bath by filling the 1-L bucket with
cold tap water. Add ice and decant off some of the water to
7.1 Virgin Poly(ethylene terephthalate).
maintain a 5-cm floating ice level on the surface of the water.
7.2 Ice.
The bucket should be about 90 % full with the ice and water
slurry. Place the bucket with the ice slurry as close to the oven
7.3 Paper Towels.
as possible.
8. Hazards
9.7 At 10.00 min on the stopwatch, quickl
...
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