ISO 17557:2003

INTERNATIONAL ISO
STANDARD 17557
First edition
2003-09-15
Plastics — Film and sheeting — Cast
polypropylene (PP) films
Plastiques — Film et feuille — Films de polypropylène (PP) moulés

Reference number
©
ISO 2003
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ii ISO 2003 – All rights reserved

Contents Page
1 Scope . 1
2 Normative references . 1
3 Classification . 1
4 Requirements . 2
5 Test methods . 4
6 Packaging . 6
7 Marking . 6
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ISO 2003 – All rights reserved iii

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
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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
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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 17557 was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 11, Products.
It is based on Japanese Standard JIS Z 1713:1997.
©
iv ISO 2003 – All rights reserved

INTERNATIONAL STANDARD ISO 17557:2003(E)
Plastics — Film and sheeting — Cast polypropylene (PP) films
1Scope
This International Standard specifies the requirements for cast polypropylene (PP) films, which are mainly used
for packaging.
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 291:1997, Plastics — Standard atmospheres for conditioning and testing
ISO 527-3:1995, Plastics — Determination of tensile properties — Part 3: Test conditions for films and sheets
ISO 4593:1993, Plastics — Film and sheeting — Determination of thickness by mechanical scanning
ISO 8295:1995, Plastics — Film and sheeting — Determination of coefficients of friction
ISO 8296:1987, Plastics — Film and sheeting — Determination of wetting tension
ISO 14782:1999, Plastics — Determination of haze for transparent materials
ISO 15106-1:2003, Plastics — Film and sheeting — Determination of water vapour transmission rate — Part 1:
Humidity detection sensor method
ISO 15106-2:2003, Plastics — Film and sheeting — Determination of water vapour transmission rate — Part 2:
Infrared detection sensor method
ISO 15106-3:2003, Plastics — Film and sheeting — Determination of water vapour transmission rate — Part 3:
Electrolytic detection sensor method
3 Classification
Films are classified into four types as shown in Table 1.
Table 1 — Classification of films
a
Type 1 Homopolymer film subjected to corona discharge or flame treatment
a
Type 2 Homopolymer film not subjected to corona discharge or flame treatment
b
Type 3 Copolymer film subjected to corona discharge or flame treatment
b
Type 4 Copolymer film not subjected to corona discharge or flame treatment
a
Containing more than 95 % by mass of propylene.
b
Containing 50 % to 95 % by mass of propylene.
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ISO 2003 – All rights reserved 1

4 Requirements
4.1 Appearance
Films shall be visibly free of flaws, slackness, wrinkles, stains, foreign matter or marks which could impair their
serviceability.
The splicing of two films in a roll should preferably be prominently marked to provide a visible indication when
the roll is viewed from the end. The method of marking the splice should be agreed upon between the interested
parties.
NOTE One acceptable method of doing this is to use coloured adhesive tape.
4.2 Dimensions
4.2.1 General
For any individual film selected at random from any delivery, the following dimensions, including their nominal
values, shall be as agreed upon between the interested parties.
4.2.2 Width
The film width shall lie between the nominal width and a value 5mm wider than the nominal width.
Examples of possible widths are shown in Table 2.
Table 2 — Exampl
...