Personal eye protection - Goggles for motorcycle and moped users

This European Standard specifies requirements and test methods for goggles for use by all motorcycle and moped drivers and passengers, intended for eye-protection during the use of motorcycle and moped, both on the road and for off-road sport or leisure use, subject to the following exclusion. The goggles for official races and competitions are not included within the scope of this standard.

Persönlicher Augenschutz - Schutzbrillen für Motorrad- und Mopedfahrer

Die vorliegende Europäische Norm legt Anforderungen und Prüfverfahren für Schutzbrillen für alle Fahrer und Beifahrer von Motorrädern und Mopeds fest, die dazu gedacht sind, Augenschutz während der Verwendung von Motorrädern und Mopeds im Sport- und Freizeitbereich sowohl auf der Straße als auch im Gelände im Sport- und Freizeitbereich zu bieten. Davon ausgenommen sind Schutzbrillen, die von Motorrad- und Mopedfahrern bei offiziellen Rennen und Wettkämpfen getragen werden; diese unterliegen nicht der vorliegenden Norm.

Protection individuelle de l'oeil - Lunettes-masques pour motocyclistes et cyclomotoristes

La présente Norme européenne spécifie des exigences et des méthodes d’essai relatives aux lunettesmasques
utilisées par l’ensemble des conducteurs ou passagers de motocycles ou cyclomoteurs, destinées à
la protection de l’oeil au cours de l’utilisation des motocycles et des cyclomoteurs, tant sur route que pour la
pratique hors-route de sport ou de loisirs, sous réserve de l’exclusion suivante. Les lunettes-masques pour
des courses et compétitions officielles n’entrent pas dans le domaine d’application de la présente norme.

Osebno varovanje oči - Zaščitna očala za voznike motornih koles in mopedov

Ta evropski standard določa zahteve in preskusne metode za zaščitna očala za voznike motornih koles in mopedov, ki se uporabljajo na cesti in na terenu pri športu in v prostem času, z naslednjo izjemo. Področje uporabe tega standarda ne vključuje uporabe zaščitnih očal za uradne dirke in tekmovanja.

General Information

Status
Published
Publication Date
20-Jul-2010
Current Stage
9060 - Closure of 2 Year Review Enquiry - Review Enquiry
Due Date
03-Jun-2020
Completion Date
03-Jun-2020

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Persönlicher Augenschutz - Schutzbrillen für Motorrad- und MopedfahrerProtection individuelle de l'oeil - Lunettes-masques pour motocyclistes et cyclomotoristesPersonal eye protection - Goggles for motorcycle and moped users43.140Motorna kolesa in mopediMotor cycles and mopeds13.340.20Varovalna oprema za glavoHead protective equipmentICS:Ta slovenski standard je istoveten z:EN 1938:2010SIST EN 1938:2010en,fr,de01-oktober-2010SIST EN 1938:2010SLOVENSKI

STANDARDSIST EN 1938:19991DGRPHãþD
SIST EN 1938:2010
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1938
July 2010 ICS 13.340.20 Supersedes EN 1938:1998English Version
Personal eye protection - Goggles for motorcycle and moped users

Protection individuelle de l'oeil - Lunettes-masques pour motocyclistes et cyclomotoristes

Persönlicher Augenschutz - Schutzbrillen für Motorrad-und Mopedfahrer This European Standard was approved by CEN on 19 June 2010.

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 lists and bibliographical references concerning such national standards may be obtained on application to the CEN 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 under the responsibility of a CEN member into its own language and notified to the CEN 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,

B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1938:2010: ESIST EN 1938:2010

EN 1938:2010 (E) 2 Contents Page Foreword ..............................................................................................................................................................41 Scope ......................................................................................................................................................52 Normative references ............................................................................................................................53 Terms and definitions ...........................................................................................................................54 Requirements .........................................................................................................................................54.1 General ....................................................................................................................................................54.2 Design and manufacture .......................................................................................................................54.3 Materials .................................................................................................................................................54.4 Sit and fit .................................................................................................................................................64.5 Ventilation ...............................................................................................................................................64.6 Optical requirements .............................................................................................................................64.6.1 Field of vision .........................................................................................................................................64.6.2 Lens requirements .................................................................................................................................74.7 Non optical requirements .....................................................................................................................94.7.1 General ....................................................................................................................................................94.7.2 Impact resistance...................................................................................................................................94.7.3 Resistance to surface damage by fine particles ............................................................................. 104.8 Optional requirements – Resistance to fogging .............................................................................. 105 Testing ................................................................................................................................................. 105.1 General ................................................................................................................................................. 105.2 Conditioning and test conditions ...................................................................................................... 115.3 Field of vision ...................................................................................................................................... 115.4 Refractive powers ............................................................................................................................... 135.5 Transmittance ..................................................................................................................................... 135.5.1 General ................................................................................................................................................. 135.5.2 Luminous transmittance .................................................................................................................... 135.5.3 Infrared transmittance ........................................................................................................................ 135.5.4 UV-transmittance ................................................................................................................................ 135.6 Reduced luminance coefficient ......................................................................................................... 145.7 Resistance to ultraviolet radiation .................................................................................................... 145.8 Impact resistance................................................................................................................................ 155.9 Resistance to surface damage by fine particles ............................................................................. 165.10 Resistance to fogging ........................................................................................................................ 165.11 Visual inspection ................................................................................................................................ 165.12 Sit and fit .............................................................................................................................................. 166 Information supplied by the manufacturer ...................................................................................... 167 Marking ................................................................................................................................................ 17Annex A (normative)

Photochromic sunglare oculars for use in twilight or at night ............................... 18Annex B (normative)

Spectral functions for the calculation of luminous transmittance and relative visual attenuation coefficients (quotients) ...................................................................................... 19Annex C (normative)

Spectral functions for the calculation of solar UV transmittance values .............. 21Annex D (normative)

Spectral function for the calculation of infrared transmittance .............................. 23Annex E (normative)

Cut-on filter for UV filtering ......................................................................................... 25Annex F (informative)

Impact resistance level

Use recommendations .................................................... 27Annex G (informative)

Uncertainty of measurement and results interpretation........................................ 28SIST EN 1938:2010

EN 1938:2010 (E) 3 Annex H (informative)

Significant technical changes between this European Standard and the previous edition ................................................................................................................................... 30Annex ZA (informative)

Relationship between this European Standard and the Essential Requirements of EU Directive 89/686/EEC – Personal Protective Equipment .............................. 32Bibliography ...................................................................................................................................................... 34 SIST EN 1938:2010

EN 1938:2010 (E) 4 Foreword This document (EN 1938:2010) has been prepared by Technical Committee CEN/TC 85 “Eye protective equipment”, the secretariat of which is held by AFNOR. 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 January 2011, and conflicting national standards shall be withdrawn at the latest by January 2011. Attention is drawn to the possibility that some of the 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 1938:1998. For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. SIST EN 1938:2010

EN 1938:2010 (E) 5 1 Scope This European Standard specifies requirements and test methods for goggles for use by all motorcycle and moped drivers and passengers, intended for eye-protection during the use of motorcycle and moped, both on the road and for off-road sport or leisure use, subject to the following exclusion. The goggles for official races and competitions are not included within the scope of this standard. 2 Normative references The following referenced documents are indispensable for the application 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. EN 165:2005, Personal eye-protection — Vocabulary EN 167:2001, Personal eye-protection — Optical test methods EN 168:2001, Personal eye-protection — Non-optical test methods EN 1811, Reference test method for release of nickel from products intended to come into direct and prolonged contact with the skin EN 1836:2005+A1:2007, Personal eye-equipment — Sunglasses and sunglare filters for general use and filters for direct observation of the sun ISO 11664-1:2007, Colorimetry — Part 1: CIE standard colorimetric observers ISO 11664-2:2007, Colorimetry — Part 2: CIE standard illuminants 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 165:2005 and

EN 1836:2005+A1:2007 apply. 4 Requirements 4.1 General All the samples tested shall comply with the requirements of this European Standard. Goggles can be provided with different oculars. 4.2 Design and manufacture Goggles shall be free from projections, sharp edges or other defects which are likely to cause discomfort or injury during use. The verification of this requirement shall be made according to 5.11 and 5.12. 4.3 Materials Any materials (or combination of materials) may be used, provided they meet the requirements of this European Standard. SIST EN 1938:2010

EN 1938:2010 (E) 6 No parts of the goggles which are in contact with the wearer shall be made of materials that are known to cause irritation, allergic or toxic reaction amongst a significant proportion of users. Examples for documents which can be presented as evidence of chemical innocuousness are given in the note below. NOTE The following list of documents is given for information and as examples of documents that can be examined when checking on the innocuousness of materials: materials specifications; safety data sheets relating to the materials; information relating to the suitability of the materials for use with food, in medical devices, or other relevant applications; information relating to toxicological, allergenic, carcinogenic, toxic to reproduction or mutagenic investigations on the materials; information relating to ecotoxicological and other environmental investigations on the materials. The examination of documents or of the goggles shall determine whether the claim that the materials are suitable for use in the protective goggle is justified. Particular attention should be paid to the presence of plasticisers, unreacted components, heavy metals, impurities and the chemical identity of pigments and dyes. All metallic materials which could come into prolonged contact with the skin (e.g. hinge, rim and bridge) shall be tested according to EN 1811 for nickel release. The release of nickel shall be less than 0,5 µg/cm2/wk. 4.4 Sit and fit Goggles shall be so designed and manufactured that they will sit securely in position on the face when used as intended, and will adapt to the shape of the wearer’s face by means of contact surfaces made of soft flexible material. The retaining strap shall be designed to be flexible or adjustable and sit securely when fitted according to the manufacturer’s instructions. The retaining strap shall be capable of withstanding any stress which occurs during proper use without tearing or being permanently deformed. The verification of this requirement shall be made according to 5.12. 4.5 Ventilation Design measures shall exist ensuring that the inside of the goggles is ventilated during use. Such measures shall be outside the oculars’ areas and shall not reduce the peripheral vision significantly. The verification of this requirement shall be made with a visual inspection according to 5.11. When goggle are provided with opening to allow circulation of air, the vented portion shall be such that openings shall exclude spherical objects 1,5 mm in diameter or larger. NOTE The necessary rate of air exchange and the design of the ventilation openings depend heavily on the weather, speed of driving and the individual conditions (e.g. sweating), which means that generally applicable requirements cannot be stipulated. 4.6 Optical requirements 4.6.1 Field of vision The size of the field of vision is defined in conjunction with the appropriate head-form described in Clause 17 of EN 168:2001. The goggles shall exhibit a minimum field of vision defined by the two ellipses in Figure 1 when placed and centred at a distance of 25 mm from the surface of the eyes of the appropriate head-form. The horizontal axis shall be parallel to and 0,7 mm below the height of the line connecting the centres of the two eyes. The plane of the ellipses shall be parallel to the back flat portion of the head-form. The horizontal length of the ellipses shall be 32,0 mm, the vertical width of the ellipses shall be 25,0 mm. The centre distance (d) of the two ellipses shall be d = c + 20 mm, where c is the pupillary distance. The pupillary SIST EN 1938:2010

EN 1938:2010 (E) 7 distance is 64 mm for the medium head-form and 54 mm for the small head-form, or it may be specified differently by the manufacturer. The test shall be carried out in accordance with 5.3. Dimensions in millimetres

Figure 1 — Definition of the field of vision 4.6.2 Lens requirements 4.6.2.1 General The lens requirements shall be as given in Table 1. The requirements apply to goggles with all the oculars declared by the manufacturer. SIST EN 1938:2010

EN 1938:2010 (E) 8 Table 1 — General requirements for lenses

Spherical refractive power Astigmatic refractive powerDifference in prismatic refractive power cm/m Permissible tolerances for refractive powers of mounted oculars D1D22+ D,m-1 l D1-D2 l D,m-1 Horizontal D∆ VerticalD∆ Base out Base in ± 0,12 0,12 1,00 0,25 0,25 Difference between the spherical powers of the left and right visual points Less than 0,18 D,m-1 Luminous transmittance According to 4.6.2.2 Uniformity of luminous transmittance According to 4.1.3.1 of EN 1836:2005+A1:2007 Maximum reduced luminance coefficient Single lens goggles: ≤ 1 cd/m²/lx Multiple lens goggles: ≤ 2 cd/m²/lx Quality of material and surface According to 4.4 of EN 1836:2005+A1:2007 Resistance to ultraviolet radiation After the testing according to 5.7, the maximum reduced luminance coefficient shall not exceed the values shown in this table.

4.6.2.2 Permissible transmittance and filter categories There are three transmittance categories for oculars for goggles for motorcycle and moped users. The range of the luminous transmittance for these three categories is given by the values in Table 2. An overlap of the transmittance values of not more than ±

2 % (absolute) is permitted between the categories 0,1 and 2. If the supplier declares a luminous transmittance value, the tolerance for the value is ±

3 % absolute for transmittance values. When describing the transmittance properties of photochromic filters, two categories for transmittance values are generally used. These two values correspond to the faded state and to the darkened state of the filter. In the case of gradient filters the transmittance value at the reference point is used to characterise the luminous transmittance / category of the oculars. Table 2 also specifies the mandatory UV requirements for oculars for goggles for motorcycle and moped users. Oculars for which the enhanced infrared absorption is claimed, shall meet the requirements of the last column of Table 2. SIST EN 1938:2010

EN 1938:2010 (E) 9 Table 2 — Permissible transmittance for oculars Filter category Mandatory requirements

Ultraviolet Spectral range Visible Spectral range Enhanced infrared absorption a Maximum value of spectral transmittance τF

(λ) Maximum value of solar UVA transmittance τSUVA (λ) Range of luminous transmittance

τ V Maximum value of solar infrared transmittance

τSIR 280 nm to 315 nm 315 nm to 350 nm 315 nm to 380 nm 0 0,1 . τV τV τV 80 % to 100 % τV 1 0,1 . τV τV τV 43 % to 80 % τV 2 0,1 . τV τV τV 18 % to 43 % τV a Only applicable to goggles recommended by the manufacturer as a protection against infrared radiation. In case of oculars with a luminous transmittance of less than 75 % the manufacturer shall include in the information to be supplied the warning: “Not suitable for night driving or twilight condition”.

4.6.2.3 Special transmittance requirements and claimed transmittance properties If the oculars have special transmittance requirements and/or the claimed transmittance properties described in 4.1.3 and 4.1.4 of EN 1836:2005+A1:2007 then the oculars shall satisfy the requirements described in each corresponding clause of EN 1836:2005+A1:2007. All oculars shall have a luminous transmittance value greater than or equal to 18 %. 4.6.2.4 Requirements for road driving 4.6.2.4.1 Recognition of signal lights

The goggles shall satisfy the requirement of the recognition of signal lights according to 4.1.3.2.3 of EN 1836:2005+A1:2007. 4.6.2.4.2 Spectral transmittance The goggles shall satisfy the requirement of the spectral transmittance according to 4.1.3.2.2 of EN 1836:2005+A1:2007. 4.7 Non optical requirements 4.7.1 General The requirements apply to goggles with all the oculars declared by the manufacturer. If the only difference between oculars is the colour, the compliance can be verified only on one type. 4.7.2 Impact resistance The requirement is satisfied if the goggles withstand the impact of a steel ball, when tested in accordance with 5.8. SIST EN 1938:2010

EN 1938:2010 (E) 10 On so testing the following defects shall not occur: a) ocular fracture: an ocular shall be considered to have fractured if it cracks through its entire thickness into two or more pieces, or if the ball passes through the ocular; b) ocular deformation: an ocular shall be considered to have been deformed if a mark appears on the white paper on the opposite side to that struck by the ball; c) ocular housing or frame fracture: an ocular housing or frame shall be considered to have failed if it separates into two or more pieces, or if it is no longer capable of holding an ocular in position, or if an unbroken ocular detaches from the frame. 4.7.3 Resistance to surface damage by fine particles After the test described in 5.9 is made on the external face, the goggle’s oculars shall have a reduced luminance coefficient of not more than 10 cd/m²/lx. 4.8 Optional requirements – Resistance to fogging If resistance to fogging is claimed, then the oculars of the goggles shall remain free from fogging for a minimum of 30 s when tested in accordance with 5.10. 5 Testing 5.1 General The testing schedule in Table 3 shall be applied to type testing of complete goggles for motorcycle and moped users. The sequence of testing 1 to 9 may be changed. At least 16 samples are required for testing. If additionally testing for optional requirements has to be done, more than 16 samples may be necessary. All the samples shall pass the test. SIST EN 1938:2010

EN 1938:2010 (E) 11 Table 3 — Testing schedule for complete goggles for motorcycle and moped users Order of testing Requirements According to Clause Goggles number1-3 4-6 7-1415-1617-181 Design and manufacture 4.2 +

2 Sit and fit 4.4 +
3 Ventilation 4.5 +
4 Quality of material and surface 4.6.2 +
5 Reduced luminance coefficient 4.6.2 +1)
6 Transmittances, Uniformity of luminous transmittance 4.6.2 +1)
7 Field of vision 4.6.1
8 Refractive power 4.6.2
+1)
9 Difference in prismatic refractive power 4.6.2
10 Resistance to ultraviolet radiation 4.6.2 +1)
11 Impact resistance 4.7.2
12 Resistance to surface damage by fine particles 4.7.3
+2)
13 Resistance to fogging 4.8

+2) Explanation of the symbols: + Testing to be carried out on the indicated specimen

Empty field: No testing specified
1) Three oculars from the left and three oculars from the right eye
2) Two oculars from the left and two oculars from the right eye

5.2 Conditioning and test conditions Immediately before starting the test series, the test specimen shall be conditioned for at least 4 h in an atmosphere maintained at a temperature of (23 ± 5) °C and a relative humidity of (50 ± 20) %. Actual testing shall be carried out within 1 h after removal from the conditioning cabinet in an atmosphere maintained within the same temperature band. 5.3 Field of vision The size of the field of vision shall be measured with a perimeter in conjunction with the medium size head-form as defined in Clause 17 of EN 168:2001. The size of the field of vision of goggles for children shall be measured with a perimeter in conjunction with the small size head-form of EN 168:2001. The goggle shall be mounted as shown in Figure 2 so that the two axes of rotation A and B and the optical axis C intersect in the front surface of one eye at the interpupillary distance. Radiation is provided by a laser beam of (1 ± 0,5) mm diameter along axis C. SIST EN 1938:2010

EN 1938:2010 (E) 12
Key 1 laser A, B, C

axis (see text) Figure 2 — Test assembly for the measurement of the field of vision At (250 ± 5) mm distance from the surface of the eyes of the test head a transparent screen is placed centred to the middle of the eyes. On this screen the two ellipses shown in Figure 3 are drawn. The horizontal length of the ellipses shall be of 320 mm, the vertical width of the ellipses shall be of 250 mm. The centre distance of the two ellipses shall be d' = c + (200 ± 1) mm, where c is the pupillary distance. The pupillary distance is 64 mm for the medium head-form and 54 mm for the small head-form, or it may be specified differently by the manufacturer. In this case, for a pupillary distance up to 56 mm the small head-form shall be used for the test. The horizontal axis shall be parallel to and 7 mm below the height of the line connecting the centres of the two eyes. The plane of the ellipses shall be parallel to the back flat portion of the head-form. The arrangement is rotated around axis A and the axis B so that the circumference of the ellipse is hit by the laser beam. Such a beam shall not be shielded by the frame of the goggle. The test shall be done for both eyes. SIST EN 1938:2010

EN 1938:2010 (E) 13 Dimension in millimetres

Figure 3 — Test ellipses for the measurement of the field of vision 5.4 Refractive powers The refractive powers shall be measured in accordance with 3.2 of EN 167:2001. 5.5 Transmittance 5.5.1 General Test methods for the determination of transmittance shall be in accordance with Clause 6 of EN 167:2001. 5.5.2 Luminous transmittance The spectral distribution of standard illuminant D 65 according to ISO 11664-2:2007 and the standard spectral values of the colorimetric 2° standard observer according to ISO 11664-1:2007 shall be used to determine the luminous transmittance. The product of the spectral distribution of standard illuminant D 65 according to ISO 11664-2:2007 and the standard spectral values of the colorimetric 2° standard observer according to ISO 11664-1:2007 shall be as given in Annex B. Linear interpolation of these values for steps smaller than 10 nm is permissible. 5.5.3 Infrared transmittance The infrared transmittance ττττSIR shall be calculated from the spectral transmittance values using the solar spectral irradiance as given in Annex D. 5.5.4 UV-transmittance When calculating the solar UVA-transmittance ττττSUVA from 315 nm to 380 nm or the solar UVB-transmittance ττττSUVB from 280 nm to 315 nm, the step width shall not exceed 1 nm and the weighting functions of Annex C shall be used. SIST EN 1938:2010

EN 1938:2010 (E) 14 5.6 Reduced luminance coefficient The reduced luminance coefficient shall be measured in accordance with one of the reference methods specified in Clause 4 of EN 167:2001. NOTE When measuring double lenses, care should be taken to ensure that no reflections penetrate the ring opening in the case of a wedge-shape arrangement of these lenses. In cases of doubt the two lenses should be measured individually and these measured values added together. 5.7 Resistance to ultraviolet radiation Oculars shall be subjected to the test for resistance to ultraviolet radiation in accordance with the method specified in Clause 6 of EN 168:2001 with the following differences: a) new lamps shall be burned in for at least 150 h; b) a lamp shall not be used for operation times longer than 2 000 h; c) the irradiation time shall be (50 ± 0,1) h; d) the lamp shall be ozone free; e) a cut-on filter (e.g. a clear white crown glass B 270 with a thickness of 4 mm) shall be placed between the lamp and the specimen. This filter’s spectral characteristics shall be as given in Annex E. The spectral transmittance curve of this filter is shown in Figure 4; f) the lamp current shall be stabilized at (25 ± 0,2) A. SIST EN 1938:2010

EN 1938:2010 (E) 15
Key a
wavelength in nm solid line : nominal value b
spectral transmittance dotted line: upper limit

dashed line: lower limit Figure 4 — Spectral transmittance of cut-on filter NOTE The nominal position of the absorption edge is λc = 320 nm, defined by τ(λc) = 46 %, a shift of ± 5 nm is permitted by the specified transmittance bands (Annex E). 5.8 Impact resistance Goggles shall be tested in accordance with the method specified in Clause 9 of EN 168:2001 except for the following deviations: a) the 6 mm steel ball shall be projected at the oculars with a speed of: 1) minimum protection level: (45 20+−) m/s; 2) enhanced protection level: (60 20+−) m/s. NOTE The recommended fields of application for these protection levels are shown in Annex F (informative). b) the impact test shall be carried out on two points as defined in 3.2.3. of EN 168:2001: 1) left eye frontal; 2) right eye frontal; SIST EN 1938:2010

EN 1938:2010 (E) 16 c) four samples (each consisting of a pair of goggles) shall be conditioned in air at 50 °C for 2 h and four additional samples shall be conditioned in air at -10 °C for 2 h; d) the impact of the steel ball on the goggles shall take place within 30 s after the removal of the sample from the corresponding atmosphere described in point c) of 5.8; e) the test shall be made at an ambient temperature of (23 ± 5) °C; f) new specimens shall be used for this test and each specimen shall only be subjected to one impact. 5.9 Resistance to surface damage by fine particles Oculars shall be subjected to the test for “resistance to surface damage by fine particles” in accordance with the method specified in Clause 15 of EN 168:2001. 5.10 Resistance to fogging O

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