1、January 2015 Translation by DIN-Sprachendienst.English price group 9No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).ICS
2、 25.160.01; 13.340.99!%?0“2281356www.din.deDDIN EN ISO 25980Health and safety in welding and allied processes Transparent welding curtains, strips and screens for arc weldingprocesses (ISO 25980:2014);English version EN ISO 25980:2014,English translation of DIN EN ISO 25980:2015-01Arbeits- und Gesun
3、dheitsschutz beim Schweien und bei verwandten Verfahren Durchsichtige Schweivorhnge, -streifen und -abschirmungen frLichtbogenschweiprozesse (ISO 25980:2014);Englische Fassung EN ISO 25980:2014,Englische bersetzung von DIN EN ISO 25980:2015-01Hygine et scurit en soudage et techniques connexes Rideau
4、x, lanires et crans transparents pour les procds de soudage larc(ISO 25980:2014);Version anglaise EN ISO 25980:2014,Traduction anglaise de DIN EN ISO 25980:2015-01SupersedesDIN EN 1598:2011-12www.beuth.deDocument comprises pagesIn case of doubt, the German-language original shall be considered autho
5、ritative.1301.15 DIN EN ISO 25980:2015-01 2 A comma is used as the decimal marker. National foreword This document (EN ISO 25980:2014) has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes” in collaboration with Technical Committee CEN/TC 121 “Welding and allied processes”
6、 (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the DIN-Normenausschuss Schweien und verwandte Verfahren (DIN Standards Committee Welding and allied processes), Working Committee NA 092-00-09 AA Arbeits- und Gesundheitsschutz beim Schweien und verwandte Verf
7、ahren. The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 4007:2012 DIN EN ISO 4007:2012-09 ISO 11664-2:2007 DIN EN ISO 11664-2:2011-07 Amendments This standard differs from DIN EN 1598:2011-12 as follows: a) the standard has been adopted
8、as an EN ISO Standard; b) the standard has been editorially revised. Previous editions DIN 32504-1: 1979-11, 1983-10 DIN 32504-2: 1982-01 DIN EN 1598: 1998-01, 2002-04, 2011-12 National Annex NA (informative) Bibliography DIN EN ISO 4007:2012-09, Personal protective equipment Eye and face protection
9、 Vocabulary DIN EN ISO 11664-2:2011-07, Colorimetry Part 2: CIE standard illuminants EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 25980 October 2014 ICS 13.100; 25.160.10 Supersedes EN 1598:2011English Version Health and safety in welding and allied processes - Transparent welding curtai
10、ns, strips and screens for arc welding processes (ISO 25980:2014) Hygine et scurit en soudage et techniques connexes - Rideaux, lanires et crans transparents pour les procds de soudage larc (ISO 25980:2014) Arbeits- und Gesundheitsschutz beim Schweien und bei verwandten Verfahren - Durchsichtige Sch
11、weivorhnge, -streifen und -abschirmungen fr Lichtbogenschweiprozesse (ISO 25980:2014) This European Standard was approved by CEN on 23 August 2014. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of
12、 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 European Standard exists in three official versions (English, French, German)
13、. 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 the national standards bodies of Austria, Belgium, Bulgaria, Croatia, C
14、yprus, 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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
15、Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO
16、 25980:2014 EContents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Requirements .4 4.1 General 4 4.2 Transmittance 5 4.3 Reflectance .6 4.4 UV-Stability .6 4.5 Resistance to ignition .6 4.6 Eyelet strength .8 5 Marking .9 6 Information for users .10 Bibliography 11
17、 2 DIN EN ISO 25980:2015-01 EN ISO 25980:2014 (E) Foreword This document (EN ISO 25980:2014) has been prepared by Technical Committee ISO/TC 44 “Welding and allied processes” in collaboration with Technical Committee CEN/TC 121 “Welding and allied processes” the secretariat of which is held by DIN.
18、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 April 2015, and conflicting national standards shall be withdrawn at the latest by April 2015. Attention is drawn to the possibility that some of th
19、e elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 1598:2011. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the follo
20、wing 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, Lithuania, Luxembourg, Malta, Netherlands, N
21、orway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 25980:2014 has been approved by CEN as EN ISO 25980:2014 without any modification. 3 DIN EN ISO 25980:2015-01 EN ISO 25980:2014 (E) 1 ScopeThis Internat
22、ional Standard specifies safety requirements for transparent welding curtains, strips, and screens to be used for shielding of work places from their surroundings where arc welding processes are used. They are designed to protect people who are not involved in the welding process from hazardous radi
23、ant emissions from welding arcs and spatter.Welding curtains, strips, and screens specified in this International Standard are not intended to replace welding filters. For intentional viewing of welding arcs other means of protection are used.This International Standard is not applicable for welding
24、 processes where laser radiation is used.NOTE Darker welding curtains or screens are advisable for mutual separation of adjacent work places for reasons of comfort.2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable fo
25、r its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 4007:2012, Personal protective equipment Eye and face protection VocabularyISO 11664-2:2007, Colorimetry Part 2: CIE s
26、tandard illuminantsEN 167, Personal eye-protection Optical test methodsEN 168, Personal eye-protection Non-optical test methods3 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 4007 and the following apply.3.1transparentcharacteristic of welding curtain
27、s, strips, and screens that admit visibility to the working place without implying to be glass clear3.2hazard levelGdimensionless number representing the risk exposition to visible and near IR radiations4 Requirements4.1 GeneralFor transparent welding curtains, strips, and screens consisting of diff
28、erent materials, all requirements for the whole material combination shall be met.4 DIN EN ISO 25980:2015-01 EN ISO 25980:2014 (E) For optical test methods, see EN 167.After preparation, the test specimens shall be maintained at a temperature of (23 5) C and relative humidity of (65 10) % for a mini
29、mum of 16 h before testing.4.2 TransmittanceThe luminous transmittance, r, based on the spectral distribution of CIE standard illuminant A according to ISO 4007 shall be greater than 1 106scattered light diffused within 1 to the direction of the incident radiation shall be included in the measuremen
30、t.The spectral transmittance in the wavelength range between 210 nm and 313 nm shall be less than 2 105, in the wavelength range between 313 nm and 400 nm less than 3 102.In the wavelength range from 400 nm to 1 400 nm the hazard level G shall be less than 1.The hazard level is defined byGCGiii=()()
31、=14001400 (1)whereiis the individual wavelength, expressed in nanometers (nm); (i) is the spectral transmittance of the wavelength i; is the wavelength step for the summation, expressed in nanometers (nm);G(i) is the spectral risk factor at the wavelength i;C is a constant equal to 1 000 nm.The valu
32、es of the spectral individual risk factors are given by Formula (2):gGDii() ()= (2)whereg(i) is the spectral individual risk factor at the wavelength i, expressed in nanometers (nm)G(i) is the spectral risk factor at the wavelength i;D is a constant equal to 1 103nm.These values are given for = 10 n
33、m in Table 1. If a larger step width is used (e.g. 20 nm), the intermediate values can be omitted. For other wavelengths the risk factors can be calculated as follows: For 600 nm, g(i) = 0,001 5 nm; For 600 nm, g(i) = 2,25 0,003 75, where is the wavelength, expressed in nanometers (nm).5 DIN EN ISO
34、25980:2015-01 EN ISO 25980:2014 (E) Table 1 Wavelength dependence of the spectral individual risk factorWavelength, i, nmSpectral individual risk factor g (i) nm400 0,750 0410 0,712 5420 0,675 0430 0,637 5440 0,600 0450 0,562 5460 0,525 0470 0,487 5480 0,450 0490 0,412 5500 0,375 0510 0,337 5520 0,3
35、00 0530 0,262 5540 0,225 0550 0,187 5560 0,150 0570 0,112 5580 0,075 0590 0,037 5600 to 1 400 0,001 5NOTE To separate close welding places it is recommended to use translucent welding curtains.4.3 ReflectanceWhen measured with an Ulbricht sphere, the spectral reflectance between 230 nm and 400 nm sh
36、all be less than 10 %. The luminous reflectance shall be less than 10 % (based on the spectral distribution of CIE standard illuminant A according to ISO 11664-2).4.4 UV-StabilityThe relative change of the luminous transmittance due to the test in EN 168 shall not be greater than 20 %. Exceedance is
37、 allowed unless the level of hazard G of 1 according to 4.2 is not reached or exceeded.4.5 Resistance to ignition4.5.1 Testing shall be done at (23 5) C.4.5.2 3 samples, 190 mm long and 90 mm wide, are cut from the welding curtain, strip, or screen. The samples are put in the sample holder (see Figu
38、re 1). The lower end of the sample shall be 40 mm above the lower end of the sample holder.6 DIN EN ISO 25980:2015-01 EN ISO 25980:2014 (E) Dimensions in millimetresKey1 test markt thickness of sample holderNOTE All dimensions have tolerances of 0,1 mm.Figure 1 Sample holder4.5.3 A propane burner, h
39、aving a flame height of 20 mm when put in upright position (see Figure 2), is used. The burner has to burn for at least 1 min. Then it is turned by an angle of 45.4.5.4 The burner is directed at the bottom of the sample so that the tip of the flame hits the sample in the geometric centre of the lowe
40、r edge. The surrounding area shall be free from draughts when the test is carried out (see Figure 2).4.5.5 After 15 s remove the burner and observe whether the flame self-extinguishes and the material ceases to glow within 3050,s. Then carry out a visual inspection to see if the flame has reached th
41、e test mark 150 mm above the lower end of the sample (see Figure 2) according to 4.5.6.7 DIN EN ISO 25980:2015-01 EN ISO 25980:2014 (E) Dimensions in millimetresKey1 mounting device2 frame3 sampleaposition of the burner when setting the length of the flameNOTE All dimensions have tolerances of 0,1 m
42、m.Figure 2 Burner and testing setup4.5.6 The welding curtain, strip, or screen material is considered to be satisfactory, if for all 3 samples the flame does not reach the test mark with the burner in position, the flame self-extinguishes after removal of the burner, and the material does not contin
43、ue to glow for more than 3050,s after removal of the burner.4.6 Eyelet strength4.6.1 GeneralIn case of the use of eyelets, the described test specifies a method for assessing the seam and eyelet strength of welding curtains, strips, and screens. Specimens of materials used for welding curtains, stri
44、ps, and screens have a weight suspended to them and any damage is noted.8 DIN EN ISO 25980:2015-01 EN ISO 25980:2014 (E) 4.6.2 Test apparatusThe following apparatus is required.a) Bench stand with an attached horizontal clamp to hold sheet material 100+64mm wide evenly in its jaws, and allowing the
45、material to hang down freely. The stand shall have a metallic hook of circular cross-section of about 6 mm diameter to attach the sheet material by an eyelet. The stand shall allow to hang a sample freely by at least 600 mm.b) Minimum weight of 7 kg attached to a metallic hook of circular cross-sect
46、ion of about 6 mm diameter.c) Clamp as in item a) but not attached to the stand, with a hole allowing to hang the weight from the clamp using the attached hook as in item b).4.6.3 Test specimena) Specimen 1: The dimensions of the test specimen shall be 100 +64mm along the side containing the eyelet
47、under test (if any) and parallel to the seam under test (if any). The other dimension is not critical and should be between 150 mm and 200 mm. If the sample has no eyelet it should be provided with a punched hole with a diameter of 10 mm 1 mm and 25 mm 1 mm short of the sides.b) Specimen 2: The dime
48、nsions of the test specimen shall be between 200 mm and 350 mm along the side containing two eyelets under test (if any), the eyelets should be 25 mm 1 mm short of the cutting edge, and parallel to the seam under test (if any). The other dimension is not critical and should be between 100 mm and 200 mm measured from the underside of the seam. If the sample has no eyelets it should be provided with two punched holes with
