ISO 12418-1:2012

Plastics — Post-consumer poly(ethylene terephthalate) (PET) bottle recyclates — Part 1: Designation system and basis for specifications

ISO 12418‑1:2012 establishes a designation system for post-consumer poly(ethylene terephthalate) (PET) bottle recyclates, which may be used as the basis for specifications. The types of PET bottle recyclate are differentiated from each other by a classification system based on appropriate levels of the following designatory properties: intrinsic viscosity (IV); levels of contamination due to the label and other visible contaminants, PVC and polyolefins (including adhesive); water content; bulk density. Information regarding the intended application or method of processing will also assist in classification. ISO 12418‑1 is applicable to all PET bottle recyclates. It applies to materials ready for normal use in the form of powder, flakes or pellets. It is not intended to imply that materials having the same designation will give the same performance. ISO 12418‑1 does not provide engineering data or data on processing conditions which might be required to specify a material for a particular application and/or method of processing. If such additional details are required, they shall be determined in accordance with the test methods specified in ISO 12418‑2. In order to specify a thermoplastic material for a particular application or to ensure reproducible processing, additional requirements may be given in an additional data block (data block 5).

Plastiques — Recyclats de bouteilles en poly(téréphtalate d'éthylène) (PET) post-consommation — Partie 1: Système de désignation et base de spécification

General Information

• Status: Published
• Publication Date: 20-Aug-2012
• ICS: 83.080.20 - Thermoplastic materials
• Technical Committee: ISO/TC 61/SC 9 - Thermoplastic materials
• Drafting Committee: ISO/TC 61/SC 9 - Thermoplastic materials
• Current Stage: 9060 - Close of review
• Start Date: 02-Dec-2028

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 12418-1
First edition
2012-09-01
Plastics — Post-consumer poly(ethylene
terephthalate) (PET) bottle recyclates —
Part 1:
Designation system and basis for
specifications
Plastiques — Recyclats de bouteilles en poly(téréphtalate d’éthylène)
(PET) post-consommation —
Partie 1: Système de désignation et base de spécification
Reference number
ISO 12418-1:2012(E)
©
ISO 2012

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ISO 12418-1:2012(E)
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ii © ISO 2012 – All rights reserved

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ISO 12418-1:2012(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Designation system . 2
3.1 General . 2
3.2 Data block 1 . 2
3.3 Data block 2 . 3
3.4 Data block 3 . 3
3.5 Data block 4 . 4
3.6 Data block 5 . 5
4 Example of a designation . 5
Bibliography . 7
© ISO 2012 – All rights reserved iii

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ISO 12418-1:2012(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International
Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 12418-1 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 9, Thermoplastic
materials.
ISO 12418 consists of the following parts, under the general title Plastics — Post-consumer poly(ethylene
terephthalate) (PET) bottle recyclates:
— Part 1: Designation system and basis for specifications
— Part 2: Preparation of test specimens and determination of properties
iv © ISO 2012 – All rights reserved

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INTERNATIONAL STANDARD ISO 12418-1:2012(E)
Plastics — Post-consumer poly(ethylene terephthalate) (PET)
bottle recyclates —
Part 1:
Designation system and basis for specifications
1 Scope
1.1 This part of ISO 12418 establishes a designation system for post-consumer poly(ethylene terephthalate)
(PET) bottle recyclates, which may be used as the basis for specifications.
1.2 The types of PET bottle recyclate are differentiated from each other by a classification system based on
appropriate levels of the following designatory properties:
a) intrinsic viscosity (IV);
b) levels of contamination due to the label and other visible contaminants, PVC and polyolefins (and
including adhesive);
c) water content;
d) bulk density.
Information regarding the intended application or method of processing will also assist in classification.
1.3 This part of ISO 12418 is applicable to all PET bottle recyclates.
It applies to materials ready for normal use in the form of powder, flakes or pellets.
1.4 It is not intended to imply that materials having the same designation will give the same performance. This
part of ISO 12418 does not provide engineering data or data on processing conditions which might be required
to specify a material for a particular application and/or method of processing.
If such additional details are required, they shall be determined in accordance with the test methods specified
in Part 2 of this International Standard, if suitable.
1.5 In order to specify a thermoplastic material for a particular application or to ensure reproducible processing,
additional requirements may be given in data block 5 (see 3.1).
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced document
(including any amendments) applies.
ISO 12418-2:2012, Plastics — Post-consumer poly(ethylene terephthalate) (PET) bottle recyclates — Part 2:
Preparation of test specimens and determination of properties
ISO 15270, Plastics — Guidelines for the recovery and recycling of plastics waste
© ISO 2012 – All rights reserved 1

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ISO 12418-1:2012(E)
3 Designation system
3.1 General
The designation system for thermoplastics is based on the following standardized pattern:
Designation
Identity block
Description
Individual-item block
International
block
Data block Data block Data block Data block Data block
Standard number
(optional)
block
1 2 3 4 5
The designation consists of an optional description block, reading “Thermoplastics”, and an identity block
comprising the International Standard number and an individual-item block. For unambiguous designation, the
individual-item block is subdivided into five data blocks comprising the following information:
— Data block 1: Position 1: Identification of the plastic by its abbreviated term (PET), in accordance with
ISO 1043-1 (see 3.2.1).
Position 2: The recycling process used (see 3.2.2).
Position 3: The form of the product (see 3.2.3).
Position 4: For products in flake or pellet form, the size of the flakes or pellets (see 3.2.4).
Position 5: The filter opening used in the case of pellet extrusion (see 3.2.5).
— Data block 2: Filler or reinforcing material, its form and its content in the recyclate (see 3.3).
— Data block 3: Position 1: Intended application and/or method of processing (see 3.4).
Position 2: Information on food packaging (see 3.4).
Position 3: Whether coloured or natural (see 3.4).
— Data block 4: Designatory properties (see 3.5).
— Data block 5: For the purpose of specifications, a fifth data block containing additional information may
be added (see 3.6).
The first character of the individual-item block shall be a hyphen.
The data blocks shall be separated from each other by a comma.
If a data block is not used, this shall be indicated by doubling the separation sign, i.e. by two commas (,,).
3.2 Data block 1
3.2.1 General
In this data block, after the hyphen, poly(ethylene terephthalate) plastics are identified in position 1 by the
symbol “PET”. Then, in positions 2 to 5 (see 3.2.2 to 3.2.5), information about the recycling process and the
form of the product is given. The code-letters and code-numbers used are specified in Table 1.
3.2.2 Recycling process
In position 2 of this data block, the recycling process is represented by code-letters in parentheses, as follows:
— (MRG) for general mechanical recycling, the meaning of mechanical recycling being as defined in ISO 15270;
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ISO 12418-1:2012(E)
— (MRA) for mechanical recycling plus treatment with alkali;
— (MRP) for mechanical recycling plus treatment other than treatment with alkali, such as solid-phase
polymerization or vacuum evaporation.
3.2.3 Product form
In position 3 of this data block, the form of the product is represented by a code-letter, F, P or W.
3.2.4 Size of flakes or pellets in product
In position 4 of this data block, the size of the flakes or pellets making up the product is represented by a code-
letter, S, M or L.
3.2.5 Filter opening
In position 5 of this data block, the filter opening in the case of pellet extrusion is represented by a two-
figure code-number.
Table 1 — Code-letters and code-numbers used in data block 1
Position 5
Position 2 Position 3 Position 4
(in the case of pellets)
Code- Recycling process Code- Product
...