1、BS EN 13206:2017Plastics Thermoplasticcovering films for use inagriculture and horticultureBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS EN 13206:2017 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 13206:2017. It supersedes
2、 BS EN 13206:2001 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee PRI/75, Plastics and rubber film and sheets.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include
3、 all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2017.Published by BSI Standards Limited 2017ISBN 978 0 580 89033 8 ICS 65.040.30; 83.140.10 Compliance with a British Standard cannot confer immunity from legal obligatio
4、ns.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2017.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 13206:2017EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13206 January 2017 ICS 65.040.30
5、; 83.140.10 Supersedes EN 13206:2001English Version Plastics - Thermoplastic covering films for use in agriculture and horticulture Plastiques - Films de couverture thermoplastiques pour utilisation en agriculture et horticulture Kunststoffe - Thermoplastische Abdeckfolien fr den Einsatz in der Land
6、wirtschaft und im Gartenbau This European Standard was approved by CEN on 14 November 2016. 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 without any alteration. Up-to-date
7、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 language made by translation un
8、der 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, Denmark, Estonia, Finland, Former
9、 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 COMMITTEE FOR STANDARDIZATION
10、COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13206:2017 EBS EN 13206:2017EN 13206:2017 (E) 2 Con
11、tents Page European foreword . 4 1 Scope 5 2 Normative references 5 3 Terms and definitions . 6 4 Types and use . 7 5 Material 8 6 Durability . 8 7 Requirements . 9 8 Test methods . 12 9 Film acceptance, storage and handling 18 10 Designation 18 11 Marking . 19 12 Instructions for installation, use
12、of covering films 19 13 Instructions for disposal and end-of-life of covering films 19 Annex A (informative) Exposure to other light sources 20 A.1 Medium pressure mercury vapour lamps 20 A.2 Fluorescent uv lamps . 22 Annex B (informative) Empirical correlation between durations of covering films ex
13、posed to artificial weathering and a natural exposure. 24 B.1 Exposure to xenon-arc lamps 24 B.2 Exposure to medium pressure mercury vapour lamps . 27 B.3 Exposure to fluorescent uv lamps . 27 Annex C (normative) Determination of the chlorine content by coulometry . 28 C.1 Principle 28 C.2 Apparatus
14、 and reagents 28 C.3 Test procedure . 28 C.4 Calculation and expression of the results 30 C.5 Test report . 30 C.6 Precision . 31 C.7 Determination of chlorine in the presence of benzotriazole . 31 Annex D (normative) Determination of the sulfur content by icp- oes technique 32 D.1 Scope 32 BS EN 13
15、206:2017EN 13206:2017 (E) 3 D.2 Instruments and reagents. 32 D.3 Method of analysis . 32 D.4 References preparation and calibration 33 D.5 Sample preparation (digestion) . 34 D.6 Sulfur measurement . 34 D.7 Expression of results 34 D.8 Sulfur determination in case of presence of ni quenchers . 34 D.
16、9 Examples of conditions 34 Annex E (informative) Alternative method for the determination of chlorine and sulfur contents by x-ray fluorescence . 36 E.1 Principle 36 E.2 Introduction . 36 E.3 Apparatus . 36 E.4 Test procedure 36 E.5 Calculation and expression of the result . 36 E.6 Test report 37 A
17、nnex F (informative) Alternative methods for the determination of sulfur content by ultraviolet fluorescence method or by coulometry 38 F.1 Principle 38 F.2 Ultraviolet fluorescence method 38 F.3 Coulometry . 40 Annex G (informative) Guidance for installation, use and disposal of covering films 43 G
18、.1 Greenhouse covering films . 43 G.2 Low tunnel covering films. 49 G.3 Removal instructions . 50 Annex H (informative) Industrial standard formats of films . 51 Bibliography . 52 BS EN 13206:2017EN 13206:2017 (E) 4 European foreword This document (EN 13206:2017) has been prepared by Technical Commi
19、ttee CEN/TC 249 “Plastics”, the secretariat of which is held by NBN. This document supersedes EN 13206:2001. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by July 2017, and conflicting national sta
20、ndards shall be withdrawn at the latest by July 2017. The following technical changes have been made in comparison to EN 13206:2001: a minimum thickness of the film is fixed; the test methods have been updated as appropriate; this revision specifies also test methods for the determination of the chl
21、orine and sulfur contents of the films subjected to use and defines guidelines for installation, use and disposal; the classification for the durability of the covering films is extended to a further class. Attention is drawn to the possibility that some of the elements of this document may be the s
22、ubject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium,
23、 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, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Sw
24、itzerland, Turkey and the United Kingdom. BS EN 13206:2017EN 13206:2017 (E) 5 1 Scope This European Standard specifies the requirements related to dimensional, mechanical, optical and thermal characteristics of thermoplastic films used for covering permanent or temporary greenhouses and walking tunn
25、els and low tunnels used for forcing and semi-forcing vegetable, fruit and flower crops. Lay-flat perforated cover films are also in the scope of this European Standard. It specifies a classification for the durability of covering films and the test methods referred to in this standard. This Europea
26、n Standard specifies also test methods for the determination of the chlorine and sulfur contents of films subjected to use. This European Standard is applicable to thermoplastic covering films used in agriculture and horticulture in Europe, in the thickness range 20 m up to more than 250 m, based on
27、 polyethylene and/or ethylene copolymers materials, of the following types: non-thermal films, thermal clear films and thermal diffusing films. This European Standard also defines guidance for installation, use and disposal of covering films. It defines the conventional expected lifetime, as well as
28、 rules that allow evaluating the remaining use potential in the event of a failure before the normal end-of-use date. NOTE These rules allow estimating the residual value of the films. These provisions only apply to the film itself and the damage it has undergone. Any other problem falls within the
29、scope of professional practices and the general terms and conditions of sale. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated
30、references, the latest edition of the referenced document (including any amendments) applies. EN 10244-2, Steel wire and wire products - Non-ferrous metallic coatings on steel wire - Part 2: Zinc or zinc alloy coatings EN 13031-1, Greenhouses - Design and construction - Part 1: Commercial production
31、 greenhouses EN 16472, Plastics - Method for artificial accelerated photoageing using medium pressure mercury vapour lamps EN ISO 527-1, Plastics - Determination of tensile properties - Part 1: General principles (ISO 527-1) EN ISO 527-3, Plastics - Determination of tensile properties - Part 3: Test
32、 conditions for films and sheets (ISO 527-3) EN ISO 4892-2:2013, Plastics - Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps (ISO 4892-2:2013) EN ISO 4892-3:2016, Plastics - Methods of exposure to laboratory light sources - Part 3: Fluorescent UV lamps (ISO 4892-3) EN ISO 77
33、65-1:2004, Plastics film and sheeting - Determination of impact resistance by the free-falling dart method - Part 1: Staircase methods (ISO 7765-1:1988) ISO 4591, Plastics Film and sheeting Determination of average thickness of a sample, and average thickness and yield of a roll, by gravimetric tech
34、niques (gravimetric thickness) BS EN 13206:2017EN 13206:2017 (E) 6 ISO 4592, Plastics Film and sheeting Determination of length and width ISO 4593, Plastics Film and sheeting Determination of thickness by mechanical scanning ASTM D 1003-13, Standard Test Method for Haze and Luminous Transmittance of
35、 Transparent Plastics 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 width overall width of a film when laid flat Note 1 to entry: It is expressed in millimetres. 3.2 nominal width width of a film, as declared by the manufacturer/supplier No
36、te 1 to entry: It is expressed in millimetres. 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 i
37、s expressed in metres. 3.5 nominal length length of a film roll or sheet, as declared by the manufacturer/supplier Note 1 to entry: It is expressed in metres. 3.6 nominal mass mass of a roll or sheet, as declared by the manufacturer/supplier Note 1 to entry: It is expressed in kilograms. 3.7 longitu
38、dinal 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) BS EN 13206:2017EN 13206:2017 (E) 7 3.9 conventional expected lifetime expected lifetime defined by agreement
39、between the manufacturer/supplier and the customer or, by default, the minimum use duration that the film needs to satisfy Note 1 to entry: It is expressed in years, months or seasons. 3.10 actual useful lifetime time interval defined as beginning from the installation date of a film until its remov
40、al or an earlier date in case of its failure Note 1 to entry: It is expressed in months, years or seasons. 3.11 use ratio ratio of the actual useful lifetime of a film to its conventional expected lifetime Note 1 to entry: It is expressed as a dimensionless ratio or as a percentage (%). 3.12 remaini
41、ng use potential difference between the conventional expected lifetime of a film and its actual useful lifetime Note 1 to entry: It is expressed in months. 3.13 radiant exposure H time integral of irradiance, measured in joules per square metre (J/m2) SOURCE: ISO 9370:2009 1, definition 3.27 4 Types
42、 and use The different types of covering films, their optical and thermal characteristics and use are given in Table 1. Table 1 Characteristics and use of covering films Type Optical and thermal characteristics Use Non-thermal (NTh) Low IR effectiveness Forcing and semi forcing crops Thermal clear (
43、ThC) High transparency High IR effectiveness Same use as normal film, when higher IR effectiveness is requested Thermal diffusing (ThD) Diffusing light High IR effectiveness Same use as normal film, when higher IR effectiveness and diffusing light effect are requested BS EN 13206:2017EN 13206:2017 (
44、E) 8 5 Material Covering films according to 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 (EB
45、A) and their blends with PE-LD or PE-LLD. 6 Durability The durability of covering films is characterized by the class N, A, B, C, D, E or F. This classification, given in Table 2, is depending on the duration of exposure of the film to an artificial weathering using xenon-arc lamps according to 8.9,
46、 which induces a decrease of the value of tensile strain at break equal or less than 50 % of the initial value. The class of durability shall be declared by the manufacturer. Table 2 Resistance to weathering classification Class Minimum duration of exposure h At irradiance (narrowband 420 nm) 0,35 W
47、/(m2nm) At irradiance (narrowband 420 nm) 0,51 W/(m2nm) N 400 280 A 2 000 1400 B 3 500 2450 C 5 400 4070 D 6 800 4670 E 8 500 5830 F 10 700 7350 For films intended to be used outside of Europe, longer durations of exposures than this for Class F can be required. In this case, the minimum duration of
48、 exposure shall be defined by agreement between the manufacturer/supplier and the customer. 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
49、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 8.9 and the classification according to Table 2 shall be used. NOTE An empirical correlation between durability of covering films for greenhouses exposed to artificial weathering and natural exposure is given in Annex B (informative). The correlation study has been performed at an irradiance in narrow band (420 nm) equal to 0,35
