SIST EN 60825-1:2014/A11:2021

SLOVENSKI STANDARD
01-junij-2021
Varnost laserskih izdelkov - 1. del: Klasifikacija opreme in zahteve
Safety of laser products - Part 1: Equipment classification and requirements
Sicherheit von Lasereinrichtungen - Teil 1: Klassifizierung von Anlagen und
Anforderungen
Sécurité des appareils à laser - Partie 1: Classification des matériels et exigences
Ta slovenski standard je istoveten z: EN 60825-1:2014/A11:2021
ICS:
13.280 Varstvo pred sevanjem Radiation protection
31.260 Optoelektronika, laserska Optoelectronics. Laser
oprema equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 60825-1:2014/A11

NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2021
ICS 13.110; 31.260
English Version
Safety of laser products - Part 1: Equipment classification and
requirements
Sécurité des appareils à laser - Partie 1: Classification des Sicherheit von Lasereinrichtungen - Teil 1: Klassifizierung
matériels et exigences von Anlagen und Anforderungen
This amendment A11 modifies the European Standard EN 60825-1:2014; it was approved by CENELEC on 2021-01-18. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment 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 CENELEC member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the
responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as
the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN 60825-1:2014/A11:2021 E

European foreword
This document (EN 60825-1:2014/A11:2021) has been prepared by CLC/TC 76 “Optical radiation safety
and laser equipment”.
The following dates are fixed:
• latest date by which this document has (dop) 2022-01-18
to be implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2024-01-18
standards conflicting with this document
have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
This document has been prepared under a mandate given to CENELEC by the European Commission and
the European Free Trade Association, and supports essential requirements of EU Directive(s).
For the relationship with EU Directive(s) see informative Annex ZZ, which is an integral part of this
document.
This document is expected to be read in conjunction with EN 50689 ‘Safety of laser products - Particular
Requirements for Consumer Laser Products’, when available.

Under preparation. Stage at the time of publication: prEN 50689:2019.
1 Modifications to Clause 1, “1 Scope and object”
In Clause 1, replace the existing text:
“This Part 1 describes the minimum requirements. Compliance with this Part 1 may not be sufficient to
achieve the required level of product safety. Laser products may also be required to conform to the
applicable performance and testing requirements of other applicable product safety standards.
NOTE 3 Other standards may contain additional requirements. For example, a Class 3B or Class 4 laser product
may not be suitable for use as a consumer product.”
Where a laser system forms a part of equipment which is subject to another IEC product safety standard,
e.g. for medical equipment (IEC 60601-2-22), IT equipment (IEC 60950 series), audio and video equipment
(IEC 60065), audio-video and IT equipment (IEC 62368-1), equipment for use in hazardous atmospheres
(IEC 60079), or electric toys (IEC 62115), this Part 1 will apply in accordance with the provisions of
IEC Guide 104 for hazards resulting from laser radiation. If no product safety standard is applicable, then
IEC 61010-1 may be applied."
with the following:
“This Part 1 describes requirements that are considered sufficient to achieve the required level of product
safety for general laser products with respect to hazards to the eye and skin posed by laser radiation,
provided that consumer laser products comply with EN 50689 (see 9.5 in EN 60825-1:2014/FprAA:2020).
Also, as required in 5.3 b) of EN 60825-1, that laser products classified as Class 1C comply with the
respective applicable part of either the EN 60601 series or the EN 60335 series that contains requirements
for the safe exposure of the skin (note that the exposure of the skin is not necessarily limited to the MPE
values of the skin), if applicable, as well as specific requirements for the performance and testing of the
safeguard that prevents hazardous emission towards the eye. Depending on the type of the product, laser
products such as for example medical lasers, machines or toys can be required to conform to the applicable
performance and testing requirements of their relevant product safety standards.
NOTE 3 See 3.92 for “general laser product”.
Where a laser system forms a part of equipment which is subject to another IEC product safety standard,
e.g. for medical equipment (IEC 60601-2-22), IT equipment (IEC 60950 series), audio and video equipment
(IEC 60065), audio-video and IT equipment (IEC 62368-1), electrical equipment for measurement, control,
and laboratory use (IEC 61010-1), equipment for use in hazardous atmospheres (IEC 60079), or electric
for hazards
toys (IEC 62115), this Part 1 will apply in accordance with the provisions of IEC Guide 104
resulting from laser radiation."
2 Additions to Clause 3, “Terms and definitions”
In Clause 3, add the following terms and their definitions:
“
3.91
consumer laser product
any product or assembly of components that:
(a) is intended for consumers, or likely to be used by consumers under reasonably foreseeable conditions
even if not intended for them; and
(b) constitutes or incorporates a laser or laser system

IEC Guide 104:2019, The preparation of safety publications and the use of basic safety publications and
group safety publications
3.92
general laser product
laser product that does not fall within the scope of another EN standard that addresses the safety of a
specific category of laser products
Note 1 to entry: Examples of products where such other EN Standards exist are medical lasers (EN 60601-2-22),
electric toys (EN 62115) or laser processing machines (EN ISO 11553-1, EN ISO 11553-2).
Note 2 to entry: General laser products are for instance laboratory equipment, laser products for measurements,
laser pointers, display lasers and laser illuminated projectors.
Note 3 to entry: EN 50689 is not considered as another EN standard that addresses the safety of a specific category
of laser products, since it applies to all consumer laser products.“
3 Modification to subclause 4.3, “Classification rules”
In Note 3 of 4.3 c), replace the following text:
“NOTE 3 A source is considered an extended source when the angular subtense of the source is
greater than α , where α = 1,5 mrad. Most laser sources have an angular subtense α less than α ,
min min min
and appear as an apparent “point source” (small source) when viewed from within the beam (intra-beam
viewing). Indeed a circular laser beam cannot be collimated to a divergence less than 1,5 mrad if it is an
extended source, thus any laser where a beam divergence of 1,5 mrad or less is specified cannot be treated
as an extended source. For a small source, α is set to α = 1,5 mrad and C = 1.”
min 6
with:
“NOTE 3 An apparent source is considered an extended source when the angular subtense of the
apparent source (i.e. the angular subtense of the image of the source) is greater than α , where
min
α = 1,5 mrad (note that different accommodation states as well as different positions in the beam have
min
to be considered for the classification of extended sources). Most laser sources have an angular subtense
α less than α , and appear as an apparent “point source” (small source) when viewed from within the
min
beam (intra-beam viewing). Indeed, if a laser beam is to qualify as an extended source, it cannot be
collimated to a divergence less than 1,5 mrad unless it is astigmatic (i.e. could be collimated in one
dimension only) or scanning. Thus any non-scanning circularly symmetric laser beam, where a beam
divergence of 1,5 mrad or less is specified, cannot be treated as an extended source, since accommodation
to infinity for intrabeam viewing of such a source produces a retinal image that subtends an angle of less
than 1,5 mrad. Also, more generally, any circular, non-scanning high quality Gaussian beam (TEM ) with
a beam quality factor M equal or close to unity is associated to a small apparent source, as either the
beam waist subtends an angular subtense smaller than 1,5 mrad or the divergence is smaller than
1,5 mrad. For a small source, α is set to α = 1,5 mrad and C = 1. See also definitions 3.7, 3.10, 3.36,
min 6
3.42. A frequent mistake is to associate the beam diameter, or the beam profile, at the laser aperture with
the apparent source; the laser aperture as such has no special distinctiveness that is related to the apparent
source. Examples of designs that might constitute an extended source are: transmissions through a
diffusor, transmissions through a diffractive optical element (DOE), partially coherent beams (i.e. beams
with low beam quality and therefore higher values of the beam quality factor M ), scanned emission, fibres,
and astigmatic beams (since the eye cannot accommodate to both waists at the same time). Measurements
of the image of the apparent source are expected to be performed with sufficient accuracy, typically with a
laser beam profiler CCD camera. As an alternative to characterizing the angular subtense of the apparent
source (note that different accommodation states are expected to be considered, as well as different
positions in the beam, see 5.4.3), C can be set to unity (simplified evaluation, see 5.4.2).”
4 Modifications to subclause 5.3, “Determination of the class of the laser
product”
In subclause 5.3, replace the existing text of footnote d of Table 3, footnote f of Table 4, footnote d of
Table 6 and footnote c of Table 7:
“In the wavelength range between 1 250 nm and 1 400 nm, the upper value of the AEL is limited to the AEL
value for Class 3B.”
with:
“In the wavelength range between 1 250 nm and 1 400 nm, two additional limitations apply.
The value of the AEL in the table above is limited to the AEL value for Class 3B.
The accessible emission, determined with the specified aperture stop, is limited by the following values
(these limits are derived from the MPE of the skin and are required as an additional limit to protect the
anterior parts of the eye). This limitation for the eye is to be treated as additive with the spectral region of
1400 nm to 10 nm listed in Table 1.
−9
Aperture stop diameter: 1 mm
For t < 10 s:
7,9 × 10 W
−9 −7 −4
Aperture stop diameter: 1 mm
For 10 s ≤ t < 10 s: 7,9 × 10 J
−7 −2 0,25
Aperture stop diameter: 1 mm
For 10 s ≤ t < 0,35 s: 4,3 × 10 t J
3/8
For t ≥ 0,35 s: 0,1 W
Aperture stop diameter: 0,35 s ≤ t < 10 s: 1,5 t mm
t ≥ 10 s: 3,5 mm
“
5 Modification to subclause 6.2.1, “General”
In 6.2.1, replace the existing first paragraph:
“Each laser product shall have a protective housing which, when in place, prevents human access to laser
radiation (including errant laser radiation) in excess of the AEL for Class 1, except when human access is
necessary for the performance of the function(s) of the product.”
with:
“Each laser product shall have a protective housing which, when in place, prevents human access to laser
radiation (including errant laser radiation) in excess of the AEL for Class 1, unless human access to laser
radiation is necessary for the performance of the function(s) of the product. Where human access to
radiation levels above the AEL for Class 1 is necessary, the product shall be in the lowest feasible class
commensurate with this function.
NOTE Where such human access is necessary only at certain times and not during routine operation of the
product (e.g. to allow specific maintenance procedures, which are described in the information for the user, to be
undertaken by the user) the protective housing prevents human access to laser radiation in excess of the AEL for Class
1 during routine operation. This requirement for a protective housing does not mean that the product needs to meet all
the requirements for, and to be classified as, Class 1. This is because classification as Class 1 cannot be achieved
when access to levels of laser radiation of Class 3B or Class 4 is necessary during maintenance procedures.”
6 Modification to subclause 9.5, “Consumer electronic products”
Replace the entire text of subclause 9.5 with the following:
“Consumer laser products shall comply with applicable requirements for laser products of their class as well
as with EN 50689 . In addition, these p
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