EN 13207:2018

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kunststoffe - Thermoplastische Silofolien und -schläuche für den Einsatz in der LandwirtschaftPlastiques - Films d'ensilage thermoplastiques et gaines pour utilisation en agriculturePlastics - Thermoplastic silage films and tubes for use in agriculture83.140.10Filmi in folijeFilms and sheets65.040.20Buildings and installations for processing and storage of agricultural produceICS:Ta slovenski standard je istoveten z:EN 13207:2018SIST EN 13207:2018en,fr,de01-maj-2018SIST EN 13207:2018SLOVENSKI
STANDARDSIST EN 13207:20021DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13207
February
t r s z ICS
z uä s v rä s r Supersedes EN
s u t r yã t r r sEnglish Version
Plastics æ Thermoplastic silage films and tubes for use in agriculture Plastiques æ Films d 5ensilage thermoplastiques et gaines pour utilisation en agriculture
Kunststoffe æ Thermoplastische Silofolien und æschläuche für den Einsatz in der Landwirtschaft This European Standard was approved by CEN on
s r December
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s u t r yã t r s z ESIST EN 13207:2018

Exposure to other light sources . 13 A.1 Medium pressure mercury vapour lamps . 13 A.2 Fluorescent UV lamps . 15 Annex B (informative)
Guidance for use and disposal of silage films . 17 B.1 Installation instructions . 17 B.2 Use conditions . 17 B.3 Factor affecting the lifetime of silage films . 18 B.4 Removal instructions . 18 Bibliography . 20 SIST EN 13207:2018

IEC Electropedia: available at http://www.electropedia.org/
ISO Online browsing platform: available at http://www.iso.org/obp 3.1 width overall width of the film when laid flat Note 1 to entry: It is expressed in millimetres (mm). 3.2 nominal width width of the film, as declared by the manufacturer/supplier Note 1 to entry: It is expressed in millimetres (mm). 3.3 nominal thickness thickness of a film, as declared by the manufacturer/supplier Note 1 to entry: It
3.4 roll length largest dimension of a film corresponding to the length of the unwinded roll Note 1 to entry: It is expressed in metres (m). 3.5 nominal length length of a film roll or a sheet, as declared by the manufacturer/supplier Note 1 to entry: It is expressed in metres (m). 3.6 nominal mass mass of a roll or a sheet, as declared by the manufacturer/supplier Note 1 to entry: It is expressed in kilograms (kg). 3.7 longitudinal direction MD direction parallel to the roll length, corresponding to the extrusion direction 3.8 transverse direction TD direction parallel to the width (at right angle to the length) SIST EN 13207:2018

minimum twelve months Note 1 to entry: It is expressed in years or months. 3.10 radiant exposure H time integral of irradiance Note 1 to entry: It is measured in joules per square metre -2). [SOURCE: ISO 9370:2017, 3.27[1]]
4 Types and use The different types of silage films are given in Table 1. Table 1 — Types of films Type Characteristics SA Film or tube with a nominal thickness
· 90
suitable for food contact SB Film or tube with a nominal thickness
· 100
not suitable for food contact SC Film with a nominal thickness
· 35
used as lining in combination addition to a type A or B silage film SD Film or tube with a thickness
· 90
having at least one coextruded layer made from a gas barrier polymer (e.g. EVOH or polyamide) SE Film with a nominal thickness
· 35
having at least one coextruded layer made from a gas barrier polymer used as lining in combination addition to a type A or B silage film 5 Material Silage films in accordance with this standard are usually manufactured from: — low density polyethylene (PE-LD), linear low density polyethylene (PE-LLD) and their blends; — ethylene vinyl acetate copolymers (EVAC) and their blends with PE-LD or PE-LLD; — ethylene butyl acrylate copolymers (EBAK) and their blends with PE-LD or PE-LLD; — gas barrier polymer, e.g. EVOH or polyamide. SIST EN 13207:2018

¶ 130 kly/year1) For C2 corresponding to a duration of natural exposure of 12 months for a film used in a climatic zone between 131 kly/year and 160 kly/year and of 18 months for a film used in a climatic zone
¶ 130 kly/year1). Other light sources may be used provided that a correlation between the test results obtained with these light sources and these obtained after a natural exposure can be demonstrated. This may be useful when the durations of the exposure to xenon-arc lamps as defined in Table 2 are too long. Details of these methods are given in Annex A (informative). In case of dispute, the exposure to xenon-arc lamps according to 8.5 and the classification according to Table 2 shall be used. 7 Requirements 7.1 General requirements Silage films shall fulfil the requirements of Table 3.
1) 1 kly = 0,041 84 GJ/m2. SIST EN 13207:2018

Test method SA SB SC SD SE Clause Nominal thickness µm
Appearance - Shall conform to 7.2 7.2 Dimensional characteristics Tolerance of average thickness/nominal thickness % ±5 8.1 Tolerance of single point
thickness/nominal thickness % from – 20 to 20 - 20 from – 20 to 25 from – 20 to 20 from – 20 to 25 8.1 Width tolerance/ nominal width % ±2 8.2 length tolerance/ nominal length %
«1, +2 8.2 Mechanical characteristics of unexposed film Tensile stress at break (MD, TD) MPa
· 22
· 17
· 20
· 20
· 20 8.3 Tensile strain at break: %
8.3 MD
· 400
· 300
· 350
· 350
· 350 TD
· 500
· 400
· 450
· 450
· 450 Impact resistance
Flat area F50 g
· 500
· 250
· 100
· 350
· 100 8.4.2 Fold area (no break) g
· 200
· 100
· 50
· 100
· 50 8.4.3 Oxygen
transmission ratea cm3/(m2 24 h bar b) ns ns ns
¶ 150
¶ 150 8.6 ns = not specified a
A commonly used unit for the oxygen gas transmission rate is the cm3 (STP)/(m2 · d) at one atmosphere pressure differential, where: 1 cm3 at Standard Temperature and Pressure (STP = 273,15 K; 1,013 × 105 Pa) is 44,62 µmol and one day is 86,4 × 103 s. The oxygen transmission rate in mol/(m2 · s · Pa) is abstained multiplying the value in cm3 (STP)/(m2 · d) by 5,165 × 10 «10. b
1 bar = 0,1 MPa = 105 Pa; 1 MPa = 1 N/mm2. 7.2 Requirements for appearance The film shall be free of holes which will affect the fitness for purpose of the film; check by unrolling at least 2 m of the film and examining it against the light holding it tight at arms’ length. SIST EN 13207:2018
...