1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Plastics - Thermoplastic mulch films recoverable after use, for use in agriculture and horticultureBS EN 13655:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13655 February 2018 ICS 83.140.10 Supersedes EN 136
2、55:2002English Version Plastics - Thermoplastic mulch films recoverable after use, for use in agriculture and horticulture Plastiques - Films de paillage thermoplastiques rcuprables aprs usage, pour utilisation en agriculture et horticulture Kunstoffe - Nach Gebrauch abnehmbare thermoplastische Mulc
3、hfolien fr den Einsatz in Landwirtschaft und im Gartenbau This European Standard was approved by CEN on 10 December 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard witho
4、ut any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other l
5、anguage made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Den
6、mark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN
7、COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13655:2018 ENatio
8、nal forewordThis British Standard is the UK implementation of EN 13655:2018. It supersedes BS EN 13655:2002, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PRI/21, Testing of plastics.A list of organizations represented on this committee can be obtain
9、ed on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 92801 7ICS 83.140.10; 65.060.99Compl
10、iance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 13655:2018EUROPEA
11、N STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13655 February 2018 ICS 83.140.10 Supersedes EN 13655:2002English Version Plastics - Thermoplastic mulch films recoverable after use, for use in agriculture and horticulture Plastiques - Films de paillage thermoplastiques rcuprables aprs usage, pour util
12、isation en agriculture et horticulture Kunstoffe - Nach Gebrauch abnehmbare thermoplastische Mulchfolien fr den Einsatz in Landwirtschaft und im Gartenbau This European Standard was approved by CEN on 10 December 2017. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which s
13、tipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member. This Europe
14、an Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are
15、the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Roma
16、nia, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CEN All rights of exploitation in any
17、 form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13655:2018 EBS EN 13655:2018EN 13655:2018 (E) 2 Contents Page European foreword . 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions 6 4 Types and use 7 5 Materials 7 6 Durability 7 7 Requirements 8 7.1 Gen
18、eral requirements 8 7.2 Requirement for appearance 11 8 Test methods. 12 8.1 Determination of thickness . 12 8.2 Determination of width. 12 8.3 Determination of film length 12 8.4 Determination of tensile characteristics 12 8.5 Determination of impact resistance . 13 8.5.1 General 13 8.5.2 Flat area
19、 13 8.5.3 Fold area . 13 8.6 Determination of the total luminous transmittance (transparent films) . 14 8.7 Determination of solar radiation in PAR and NIR region . 14 8.7.1 Principle . 14 8.7.2 Apparatus . 14 8.7.3 Procedure . 14 8.7.4 Expression of results 15 8.8 Solar reflectance 15 8.9 Determina
20、tion of the relative light transmission 15 8.10 Resistance to artificial weathering . 15 8.10.1 Principle . 15 8.10.2 Exposure to xenon-arc lamps . 15 8.10.3 Procedure 16 8.10.4 Calculation and expression of results 16 9 Roll acceptance, storage and handling 16 9.1 Delivery checking 16 9.2 Storage a
21、nd handling of rolls 16 10 Designation 17 11 Marking . 17 11.1 Marking of the film . 17 11.2 Marking on the packaging or label . 17 12 Functions and factors of degradability of mulch films 18 BS EN 13655:2018EN 13655:2018 (E) 3 13 Conditions for installation and use of mulch films 18 14 Removal inst
22、ructions and end of life 18 Annex A (informative) Exposure to other light sources 19 A.1 Medium pressure mercury vapour lamps 19 A.1.1 Durability classification 19 A.1.2 Exposure to medium pressure mercury vapour lamps . 19 A.1.3 Procedure . 21 A.1.4 Calculation and expression of results 21 A.2 Expo
23、sure to fluorescent UV lamps . 21 A.2.1 Durability classification 21 A.2.2 Exposure to fluorescent UV lamps . 21 A.2.3 Procedure . 22 A.2.4 Calculation and expression of results 22 Annex B (informative) Numerical correlation between durations of mulching films exposed to artificial weathering and a
24、natural exposure . 23 B.1 Exposure to xenon-arc lamps 23 B.2 Exposure to medium pressure mercury vapour lamps . 24 B.3 Exposure to fluorescent UV lamps . 24 Annex C (normative) Determination of solar reflectance . 25 C.1 Principle 25 C.2 Terms and definitions 25 C.3 Apparatus . 25 C.3.1 General 25 C
25、.3.2 Test specimens . 26 C.3.3 Procedure . 26 C.3.4 Calculation of the solar reflectance Rs26 Annex D (normative) Determination of the relative light transmission . 28 D.1 Principle 28 D.2 Apparatus . 28 D.3 Procedure . 28 D.4 Expression of results 28 Annex E (informative) Guidance for conditions fo
26、r installation, use and removal of mulch films . 29 E.1 Main functions of mulch films . 29 E.2 Factors for degradability 29 E.3 Conditions for installation, use and removal 29 E.3.1 Installation instructions 29 E.3.2 Durability of mulching films 30 E.4 Removal instructions . 30 Bibliography . 31 BS
27、EN 13655:2018EN 13655:2018 (E) 4 European foreword This document (EN 13655:2018) has been prepared by Technical Committee CEN/TC 249 “Plastics”, the secretariat of which is held by NBN. This European Standard shall be given the status of a national standard, either by publication of an identical tex
28、t or by endorsement, at the latest by August 2018 and conflicting national standards shall be withdrawn at the latest by August 2018. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifyin
29、g any or all such patent rights. This document supersedes EN 13655:2002. The following technical changes have been made in comparison to EN 13655:2002: the Scope has been extensively specified and enlarged to installation, use and removal conditions of mulch films; the standard is only applicable to
30、 thermoplastic mulch films recoverable after use; modification of the minimum nominal thickness of the mulch films which conform to this standard, 20 m instead of 10 m; the types of mulch films have been redefined; the Table 2-Classification according to artificial weathering, has been modified; the
31、 paragraphs for requirements, test methods, acceptance, storage and handling have been drafted in a new frame; the paragraphs on functions and factors of degradability, instructions disposal of mulch films and end-of-life, have been added. According to the CEN-CENELEC Internal Regulations, the natio
32、nal standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lith
33、uania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 13655:2018EN 13655:2018 (E) 5 1 Scope This document specifies the requirements related to dimensional, mechanical, optical and therma
34、l characteristics of thermoplastic films for mulching applications in agriculture and horticulture. These mulch films are intended to be removed after use and not incorporated in the soil. These mulch films are not intended to be used for soil disinfection by fumigation. Films for this application a
35、re in the scope of EN 17098-11. It specifies a classification for durability of mulching films and the test methods referred to in this document. This document is applicable to thermoplastic mulch films, used for agriculture and horticulture in Europe, based on polyethylene and/or ethylene copolymer
36、s, of the following types: transparent films; black films; reflective films (e.g. white films, black/white films and black/silver films); films of other colour(s) for weed control (e.g. green, brown). This document also defines installation, use and removal conditions of mulch films. NOTE Mulch film
37、s are considered as highly contaminated by soil and vegetal residues: the observed rates (or levels) of contamination of mulch films can vary from 70 % to 90 %. Therefore the film thickness is a key factor on the rate of contamination, the thinnest films (e.g. less than 25 m) will be the mostly cont
38、aminated, difficult, expensive to remove, recover and recycle. 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 refer
39、ences, the latest edition of the referenced document (including any amendments) applies. EN ISO 527-1, Plastics - Determination of tensile properties - Part 1: General principles (ISO 527-1) EN ISO 527-3:1995, Plastics - Determination of tensile properties - Part 3: Test conditions for films and she
40、ets (ISO 527-3:1995) EN ISO 4892-2:2013, Plastics - Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps (ISO 4892-2:2013) EN ISO 7765-1:2004, Plastics film and sheeting - Determination of impact resistance by the free-falling dart method - Part 1: Staircase methods (ISO 7765-1:
41、1988) ISO 4591, Plastics - Film and sheeting - Determination of average thickness of a sample, and average thickness and yield of a roll, by gravimetric techniques (gravimetric thickness) ISO 4592, Plastics - Film and sheeting - Determination of length and width ISO 4593, Plastics - Film and sheetin
42、g - Determination of thickness by mechanical scanning ISO 9845-1, Solar energy - Reference solar spectral irradiance at the ground at different receiving conditions - Part 1: Direct normal and hemispherical solar irradiance for air mass 1,5 ASTM D 1003-13, Standard Test Method for Haze and Luminous
43、Transmittance of Transparent Plastics BS EN 13655:2018EN 13655:2018 (E) 6 3 Terms and definitions For the purposes of this document the following terms and definitions apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: availa
44、ble at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp 3.1 width total width of a film when laid flat Note 1 to entry: It is expressed in millimetres (mm). 3.2 nominal width width of a film, as declared by the manufacturer/supplier Note 1 to entry: It is
45、expressed in millimetres (mm). 3.3 nominal thickness thickness of a film, as declared by the manufacturer/supplier Note 1 to entry: It is expressed in micrometres (m). 3.4 roll length largest dimension of the film corresponding to the length of the unwinded roll Note 1 to entry: It is expressed in m
46、etres (m). 3.5 longitudinal direction of the film MD direction parallel to the roll length corresponding to the extrusion direction 3.6 transverse direction of the film TD direction parallel to the width (at right angles to the length) 3.7 radiant exposure H time integral of irradiance Note 1 to ent
47、ry: It is measured in joules per square metre (J m-2) SOURCE: ISO 9370:2017, definition 3.272 BS EN 13655:2018EN 13655:2018 (E) 7 4 Types and use The different types of mulch films, their optical characteristics and use are given in Table 1. Table 1 Types and use of mulching films Type Optical chara
48、cteristic Use Transparent film Transparent to sunlight radiation To warm up the soil Not used for weed growth control Black film Very low sunlight transmission When prevention of weeds growth is requested in order to limit warming effect of the soil Reflective film aVery low sunlight transmission Wh
49、en prevention of weeds growth is requested and sunlight reflection prevent young leaves burning and improves photosynthesis by light reflection Film of other colour(s) for weed control bSelective sunlight transmission in PAR (photosynthesis active radiation) and in near IR When prevention of weeds growth and warming up of soil are needed aE.g. white, black/white and black/silver. bE.g. green, brown, etc. 5 Materials Mulch films according to this standard are usually manufactured from polyolefins. 6 Durability The durability
