ISO 17555:2021 Plastics — Film and sheeting — Biaxially oriented polypropylene (PP) films
标准简介
Plastics — Film and sheeting — Biaxially oriented polypropylene (PP) films是ISO于2021-06发布的ISO标准，适用于全球。标准截图
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INTERNATIONAL STANDARD ISO 17555:2021(E)
Plastics — Film and sheeting — Biaxially oriented polypropylene (PP) films
1 Scope
This document specifies the requirements for biaxially oriented polypropylene (PP) films, which are mainly used for packaging. The film can be used alone or in laminates with other films.
This document applies only to films composed of more than 95 % (by mass) of polypropylene.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements 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 527-3, Plastics — Determination of tensile properties — Part 3: Test conditions for films and sheets
ISO 2813, Paints and varnishes — Determination of gloss value at 20°, 60° and 85°
ISO 8296, Plastics — Film and sheeting — Determination of wetting tension
ISO 14782, Plastics — Determination of haze for transparent materials
ISO 15106-1, Plastics — Film and sheeting — Determination of water vapour transmission rate — Part 1: Humidity detection sensor method
ISO 15106-2, Plastics — Film and sheeting — Determination of water vapour transmission rate — Part 2: Infrared detection sensor method
ISO 15106-3, Plastics — Film and sheeting — Determination of water vapour transmission rate — Part 3: Electrolytic detection sensor method
ISO 15106-4, Plastics — Film and sheeting — Determination of water vapour transmission rate — Part 4: Gas-chromatographic detection sensor method
ISO 15106-5, Plastics — Film and sheeting — Determination of water vapour transmission rate — Part 5: Pressure sensor method
ISO 15106-6, Plastics — Film and sheeting — Determination of water vapour transmission rate — Part 6: Atmospheric pressure ionization mass spectrometer method
ISO 15106-7, Plastics — Film and sheeting — Determination of water vapour transmission rate — Part 7: Calcium corrosion method
3 Terms a nd definiti ons
No terms and definitions are listed in this document.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso. org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
ISO 17555:2021(E)
4 Classific ation
Films are classified into two types as shown in Table 1.
Table 1 — C l a s s i f ic at ion of f i l m s
Type 1 Film subjected to corona discharge, flame or plasma treatment
Type 2 Film not subjected to corona discharge, flame or plasma treat-
ment
5 Requirements
5.1 Appearance
Films shall be visibly free of flaws, slackness, wrinkles, stains, foreign matter or marks which can impair their serviceability as agreed upon by interested parties.
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. Gloss measurement for film for end-use application point of view shall be performed in accordance with ISO 2813.
NOTE One acceptable method of doing this is to use coloured adhesive tape.
5.2 Dimensions
5.2.1 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.
5.2.2 Width
The film width shall lie between the nominal width and a value 4 mm wider than the nominal width. Examples of possible widths are shown in Table 2.
Table 2 — E x a mple s of nom i n a l w idt h s of f i l m s a nd a s s o c i at e d t oler a nc e s
Nominal width Tolerance on width
mm mm
500 + 40n +4
0
NOTE n is an integer, 0, 1, 2, …, giving width steps of 40 mm.
5.2.3 Length of film in roll
The length of film in a roll shall lie between the nominal length and a value 1 % longer than the nominal length. Examples of possible lengths are shown in Table 3.
Table 3 — E x a mple s of nom i n a l len g t h s of f i l m i n a r ol l a nd a s s o c i at e d t oler a nc e s
Nominal length Length in roll Tolerance
m km m
1 000 1 +10
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