Safety of laser products - Part 5: Manufacturer's checklist for IEC 60825-1

IEC TR 60825-5:2019 is applicable to laser products as described in IEC 60825-1:2014.
The checklist is intended for use by manufacturers of laser products and their agents to establish that each new or modified design complies with the requirements of IEC 60825-1:2014. The checklist is used in conjunction with IEC 60825-1, as relevant clauses and subclauses in IEC 60825-1 are referred to in the text.
The layout of the checklist is intended only as a guide. Manufacturers and examiners are encouraged to produce their own document, omitting questions and clauses that are not relevant to the types of product under examination, but noting in the appropriate positions the numbers of such clauses stating, for example: "Subclause 9.11.1: Question omitted – not applicable".
The manufacturer is responsible for ensuring that the examiner is a person competent in the inspection and classification of laser products.
This third edition cancels and replaces the second edition of IEC TR 60825-5 published in 2003. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a new class, Class 1C, was introduced; the measurement condition 2 ("eye loupe" condition) was removed; for compliance with non-beam hazards (8.14.1) according to relevant product safety standards, a reference was made to corresponding product reports.
This document is to be used in conjunction with IEC 60825-1:2014.

General Information

Status
Published
Publication Date
13-Nov-2019
Current Stage
PPUB - Publication issued
Completion Date
14-Nov-2019
Ref Project

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IEC TR 60825-5
Edition 3.0 2019-11
TECHNICAL
REPORT
colour
inside
Safety of laser products –
Part 5: Manufacturer’s checklist for IEC 60825-1
IEC TR 60825-5:2019-11(en)
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC TR 60825-5
Edition 3.0 2019-11
TECHNICAL
REPORT
colour
inside
Safety of laser products –
Part 5: Manufacturer’s checklist for IEC 60825-1
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.260 ISBN 978-2-8322-7563-4

Warning! Make sure that you obtained this publication from an authorized distributor.

® Registered trademark of the International Electrotechnical Commission
---------------------- Page: 3 ----------------------
– 2 – IEC TR 60825-5:2019 © IEC 2019
CONTENTS

FOREWORD ........................................................................................................................... 4

INTRODUCTION ..................................................................................................................... 6

1 Scope .............................................................................................................................. 7

2 Normative references ...................................................................................................... 7

3 Terms and definitions ...................................................................................................... 7

4 Identification .................................................................................................................... 7

4.1 Details of the examiner ........................................................................................... 7

4.2 Laser product .......................................................................................................... 9

5 Test (5) – Measurements for determining classification ................................................. 10

6 Classification (4) – Classification procedure .................................................................. 12

7 Labelling for laser radiation (7) ...................................................................................... 15

7.1 General (7.1) ........................................................................................................ 15

7.2 Warnings for invisible and visible laser radiation (7.11 and 7.12) .......................... 15

7.3 Class 1 laser products (7.2) .................................................................................. 16

7.4 Class 1M laser products (7.2) ............................................................................... 16

7.5 Class 1C laser products (7.3) ................................................................................ 17

7.6 Class 2 laser products (7.4) .................................................................................. 18

7.7 Class 2M products (7.4) ........................................................................................ 19

7.8 Class 3R laser products (7.5) ................................................................................ 20

7.9 Class 3B laser products (7.6) ................................................................................ 21

7.10 Class 4 laser products (7.7) .................................................................................. 22

7.11 Radiation output and standards information (7.9) .................................................. 24

7.12 Warning for potential hazard to the skin or anterior parts of the eye (7.13) ............ 25

8 Engineering specification (6) ......................................................................................... 26

8.1 Protective housing (6.2) ........................................................................................ 26

8.2 Access panel and safety interlocks (6.2 and 6.3) .................................................. 27

8.3 Remote interlock connector (6.4) .......................................................................... 31

8.4 Manual reset (6.5) ................................................................................................. 31

8.5 Key Control (6.6) .................................................................................................. 32

8.6 Laser radiation emission warning (6.7) .................................................................. 33

8.7 Beam stop or attenuator (6.8) ............................................................................... 34

8.8 Controls (6.9) ........................................................................................................ 34

8.9 Viewing optics (6.10) ............................................................................................ 34

8.10 Scanning safeguard (6.11) .................................................................................... 35

8.11 Scanning safeguard for Class 1C products (6.12) ................................................. 35

8.12 "Walk-in" access (6.13) ......................................................................................... 36

8.13 Environmental considerations (6.14) ..................................................................... 36

8.14 Protection against other hazards (6.15) ................................................................ 37

8.15 Power limiting circuits (6.16) ................................................................................. 37

9 Other informational requirements (8) ............................................................................. 38

9.1 Information for the user (8.1) ................................................................................ 38

9.2 Purchasing and servicing information (8.2) ........................................................... 42

Annex A (informative) Attachments – Measurement results ................................................. 43

Bibliography .......................................................................................................................... 44

---------------------- Page: 4 ----------------------
IEC TR 60825-5:2019 © IEC 2019 – 3 –

Figure 5 – Alternative label for Class 1 ................................................................................. 16

Figure 6 – Alternative label for Class 1M ............................................................................... 16

Figure 7 – Alternative label for Class 1C ............................................................................... 17

Figure 8 – Alternative label for Class 2 ................................................................................. 18

Figure 9 – Alternative label for Class 2M ............................................................................... 19

Figure 10 – Alternative label for Class 3R ............................................................................. 20

Figure 13 – Alternative label for laser aperture ..................................................................... 20

Figure 11 – Alternative label for Class 3B ............................................................................. 21

Figure 13 – Alternative label for laser aperture ..................................................................... 22

Figure 12 – Alternative label for Class 4 ............................................................................... 22

Figure 13 – Alternative label for laser aperture ..................................................................... 23

---------------------- Page: 5 ----------------------
– 4 – IEC TR 60825-5:2019 © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SAFETY OF LASER PRODUCTS –
Part 5: Manufacturer’s checklist for IEC 60825-1
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international

co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and

in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports,

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preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with

may participate in this preparatory work. International, governmental and non-governmental organizations liaising

with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for

Standardization (ISO) in accordance with conditions determined by agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

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4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence between

any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent

rights. IEC shall not be held responsible for identifying any or all such patent rights.

The main task of IEC technical committees is to prepare International Standards. However, a

technical committee may propose the publication of a Technical Report when it has collected

data of a different kind from that which is normally published as an International Standard, for

example "state of the art".

IEC 60825-5, which is a Technical Report, has been prepared by IEC Technical Committee 76:

Optical radiation safety and laser equipment.

This third edition cancels and replaces the second edition of IEC TR 60825-5 published in 2003.

This edition constitutes a technical revision.

This edition includes the following significant technical changes with respect to the previous

edition:
a) a new class, Class 1C, was introduced;
b) the measurement condition 2 ("eye loupe" condition) was removed;

c) for compliance with non-beam hazards (8.14.1) according to relevant product safety

standards, a reference was made to corresponding product reports.
---------------------- Page: 6 ----------------------
IEC TR 60825-5:2019 © IEC 2019 – 5 –
The text of this International Standard is based on the following documents:
Draft TR Report on voting
76/585/DTR 76/608/RVDTR

Full information on the voting for the approval of this technical report can be found in the report

on voting indicated in the above table.
This document is to be used in conjunction with IEC 60825-1:2014.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

A list of all parts in the IEC 60825 series, published under the general title Safety of laser

products, can be found on the IEC website.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
A bilingual version of this publication may be issued at a later date.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates

that it contains colours which are considered to be useful for the correct understanding

of its contents. Users should therefore print this document using a colour printer.

---------------------- Page: 7 ----------------------
– 6 – IEC TR 60825-5:2019 © IEC 2019
INTRODUCTION

IEC 60825 consists of the following parts, under the general title Safety of laser products:

Part 1: Equipment classification and requirements
Part 2: Safety of optical fibre communication systems (OFCS)
Part 3: Guidance for laser displays and shows
Part 4: Laser guards
Part 5: Manufacturer's checklist for IEC 60825-1
Part 8: Guidelines for the safe use of laser beams on humans

Part 12: Safety of free space optical communication systems used for transmission of

information
Part 13: Measurements for classification of laser products
Part 14: A user’s guide

Part 17: Safety aspects for use of passive optical components and optical cables in high

power optical fibre communication systems
---------------------- Page: 8 ----------------------
IEC TR 60825-5:2019 © IEC 2019 – 7 –
SAFETY OF LASER PRODUCTS –
Part 5: Manufacturer’s checklist for IEC 60825-1
1 Scope

This part of IEC 60825, which is a Technical Report, is applicable to laser products as described

in IEC 60825-1:2014.

The checklist is intended for use by manufacturers of laser products and their agents to

establish that each new or modified design complies with the requirements of

IEC 60825-1:2014. The checklist is used in conjunction with IEC 60825-1, as relevant clauses

and subclauses in IEC 60825-1 are referred to in the text.

The layout of the checklist is intended only as a guide. Manufacturers and examiners are

encouraged to produce their own document, omitting questions and clauses that are not

relevant to the types of product under examination, but noting in the appropriate positions the

numbers of such clauses stating, for example: "Subclause 9.11.1: Question omitted – not

applicable".

The manufacturer is responsible for ensuring that the examiner is a person competent in the

inspection and classification of laser products.
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 references, the latest edition of the referenced document (including any

amendments) applies.

IEC 60825-1:2014, Safety of laser products – Part 1: Equipment classification and requirements

3 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 60825-1 apply.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org
• ISO Online browsing platform: available at http://www.iso.org/obp
Throughout this document, the abbreviation N.A. means "not applicable".
4 Identification
4.1 Details of the examiner

Identification of the person responsible for examining and classifying the product under

inspection:
---------------------- Page: 9 ----------------------
– 8 – IEC TR 60825-5:2019 © IEC 2019
Name: Position:
print full name print full title

If the above named person is not an employee of the manufacturer of the laser product to be

examined, state the details of the examiner’s employer or organization:
Organization:
Address:
Date of
examination:
---------------------- Page: 10 ----------------------
IEC TR 60825-5:2019 © IEC 2019 – 9 –
4.2 Laser product
4.2.1 Manufacturer:
________________________________________________________________________
Address:
________________________________________________________________________
________________________________________________________________________
Serial Number of laser products:
________________________________________________________________________
Date of manufacture (if known):
List all names, brand names, model numbers and model family designations of the
laser product being examined.
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________

4.2.2 Is the laser product sold as a component of any laser system for subsequent sale or YES/NO

sold by manufacturers of end products for use as a repair part for the end products?

NOTE If the laser system within the laser product is operable when removed from
the end product, the answer to this question is NO. Operable equipment does not
require a tool to prepare for operation.
________________________________________________________________________
________________________________________________________________________

4.2.2.1 If NO to 4.2.2, compliance with all remaining clauses of this checklist is to be YES/NO/N.A.

verified.
________________________________________________________________________
________________________________________________________________________

4.2.2.2 If YES to 4.2.2, the laser product is not subject to IEC 60825-1. YES/NO/N.A.

________________________________________________________________________
________________________________________________________________________
Numbers shown in parenthesis and italics refer to the relevant clause in
IEC 60825-1.

Where a YES or NO answer is shown in this text as underlined, failure to give that

answer, if applicable for this product, implies failure to comply with the requirements

of IEC 60825-1 and corrective action will be required by the manufacturer or his

agent if compliance shall be achieved. The user should circle the applicable verdict

(YES/NO/N.A.).

If additional information is available to support answers given, write it in the space

provided below the questions and/or attach the information to the back of the
checklist, referencing the relevant clause in the checklist.
Throughout this document, the abbreviation N.A. means "not applicable".
---------------------- Page: 11 ----------------------
– 10 – IEC TR 60825-5:2019 © IEC 2019
5 Test (5) – Measurements for determining classification

5.1. Have measurements of laser radiation been carried out in accordance with the YES/NO/N.A.

requirements of Clause 5 of IEC 60825-1:2014?
________________________________________________________________________
________________________________________________________________________

5.1.1. If NO, have measurements been deemed unnecessary by virtue of the physical YES/NO/N.A.

characteristics and limitations of the laser source, so that the laser product is placed

clearly in a particular class according to IEC 60825-1:2014, Clause 5?
________________________________________________________________________
________________________________________________________________________

5.1.2 If NO, measurements for the determination of classification are required and shall be

carried out in accordance with the requirements of Clause 5 of IEC 60825-1:2014
before proceeding further.
________________________________________________________________________
________________________________________________________________________

5.1.3 If NO is applicable to a reasonably foreseeable single fault condition, is the emission YES/NO/N.A.

in that case reduced to a level below the AEL by automatic reduction in a duration

within which it is not reasonably foreseeable to have human access?
________________________________________________________________________
________________________________________________________________________

If YES, have measurements of laser radiation been carried out during operation of

5.1.4 YES/NO/N.A.
the laser product, and under each and every reasonably foreseeable single fault
condition except for the fault conditions evaluated under 5.1.3?
NOTE 1 Automatic reduction includes physical limitation of the emission such as
component or system failure to a safe condition. It does not include manual
reduction or termination of the emission.
For example, a scanning safeguard may not react fast enough to prevent emission
above the AEL during the fault condition; however, this might be acceptable for
products where exposure of people is unlikely.

Acceptable modes of analysis of the probability and risk regarding failures are FMEA

(failure mode and effect analysis), etc. (see for instance IEC 61508 (all parts)).

Probability analysis may be used to assist in determining "reasonably foreseeable

single fault conditions".
NOTE 2 Classification is determined during operation, and restrictions on
maintenance are then dependent upon the classification of the product.
NOTE 3 Single fault conditions can be assessed by methods other than physically
inducing the fault for the test.
________________________________________________________________________
________________________________________________________________________
---------------------- Page: 12 ----------------------
IEC TR 60825-5:2019 © IEC 2019 – 11 –
5.1.5 If YES, state the following:
– classification (e.g. Class 1): YES/NO/N.A.
________________________________________________________________________
– wavelength or wavelength range of accessible laser radiation: YES/NO/N.A.
________________________________________________________________________
– the appropriate time base for the product: YES/NO/N.A.
________________________________________________________________________
– the angular subtense of the source where applicable:
YES/NO/N.A.
________________________________________________________________________
A statement of the angle of subtense is not needed when a default measurement

method is applied (see 5.4.2); if C > 1, the measurement according to 5.4.3 shall be

performed.

– the emission time profile (CW, pulse repetition rate, pulse length, peak power, YES/NO/N.A.

etc.):
________________________________________________________________________
________________________________________________________________________
– the measurement aperture and measurement distance: YES/NO/N.A.
________________________________________________________________________
Has the position of the apparent source been determined? YES/NO/N.A.
________________________________________________________________________
NOTE 1 This might be in order to place the measurement aperture at the required

measurement distance. In case of a default (simplified) evaluation, the measurement

is taken from a reference point listed in Table 11 of IEC 60825-1:2014.
Maximum level of accessible laser radiation: YES/NO/N.A.
________________________________________________________________________

For Class 1, 1M, 2, 2M or Class 3R, does the accessible emission exceed the AEL YES/NO/N.A.

of Class 3B as determined with a 3,5 mm diameter aperture placed at the closest
point of human access?
________________________________________________________________________

If YES, additional warning for skin and/or cornea/iris hazard is required (7.13). YES/NO/N.A.

NOTE 2 The measurement for skin and/or cornea/iris hazard is intended to verify if

accessible emissions exceed the AEL of Class 3B as determined with a 3,5 mm
diameter aperture placed at the closest point of human access.
________________________________________________________________________
________________________________________________________________________
---------------------- Page: 13 ----------------------
– 12 – IEC TR 60825-5:2019 © IEC 2019
6 Classification (4) – Classification procedure

6.1 For Class 1, Class 1M, Class 2, Class 2M and Class 3R, have additional YES/NO/N.A.

measurements (see informative Annex A) with a 3,5 mm diameter aperture placed at the

closest point of human access been considered to determine warnings for skin and/or

cornea/iris hazard according to Clause 7(7.13 and 8.1 k)? If NO, follow pertinent rules

above according to Clause 6(5.3).
________________________________________________________________________
________________________________________________________________________
6.2 Is the product a Class 1C laser product? YES/NO/N.A.
If YES, determine accessible emissions according to (5.3 b).
_______________________________________________________________________
_______________________________________________________________________

6.3 Is laser product emitting CW beams of a single wavelength, which are well collimated YES/NO/N.A.

or are assumed to be from a small source?

If YES, the following procedure can be simplified and the following items do not need

to be considered:
6.6(4.3 b), 6.7(4.3 c), 6.8(4.3 d) and 6.10(4.3 f)
_______________________________________________________________________
_______________________________________________________________________

6.4 For the purpose of classification, was the following ranking of classes (in increasing YES/NO/N.A.

order of ocular hazard) used: Class 1, Class 1C, Class 1M, Class 2, Class 2M, Class

3R, Class 3B, and Class 4?
Class 1C is considered not to be an ocular hazard (similar to Class 1) but may

represent a skin hazard if used inappropriately and, according to (5.3 b), shall meet

requirements of any applicable vertical standards.
For classification of a laser product as Class 1M or 2M, the use of an aperture

specified as Condition 3 limits the amount of radiation that is collected by the pupil

from large diameter beams. When measured under Condition 1, Class 1M and Class

2M products may have higher energy or power level than the AEL of Class 2 or Class

3R. For such laser products, a classification of 1M or 2M is appropriate.
_______________________________________________________________________
_______________________________________________________________________

6.5 For a single wavelength laser product, is the spectral range of the emission line YES/NO/N.A.

narrow enough so that the AELs do not change?
___
...

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