ISO 9022-2:2015

INTERNATIONAL ISO
STANDARD 9022-2
Redline version
compares Third edition to
Second edition
Optics and photonics —
Environmental test methods —
Part 2:
Cold, heat and humidity
Optique et photonique — Méthodes d’essais d’environnement —
Partie 2: Froid, chaleur et humidité
Reference number
ISO 9022-2:redline:2015(E)
©
ISO 2015

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ISO 9022-2:redline:2015(E)

IMPORTANT — PLEASE NOTE
This is a mark-up copy and uses the following colour coding:
Text example 1 — indicates added text (in green)
Text example 2 — indicates removed text (in red)
— indicates added graphic figure
— indicates removed graphic figure
1.x . — Heading numbers containg modifications are highlighted in yellow in
the Table of Contents
DISCLAIMER
This Redline version provides you with a quick and easy way to compare the main changes
between this edition of the standard and its previous edition. It doesn’t capture all single
changes such as punctuation but highlights the modifications providing customers with
the most valuable information. Therefore it is important to note that this Redline version is
not the official ISO standard and that the users must consult with the clean version of the
standard, which is the official standard, for implementation purposes.
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ii © ISO 2015 – All rights reserved

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ISO 9022-2:redline:2015(E)

Contents Page
Foreword .iv
Introduction .vi
1 Scope . 1
2 Normative reference references . 1
3 General information and test conditions . 1
4 Conditioning . 1
4.1 General . 1
4.2 Constant stress conditions . 2
4.3 Cycling exposure conditions . 4
5 Procedure.11
5.1 General .11
5.2 Pre-test .11
6 Environmental test code .11
7 Specification .11
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ISO 9022-2:redline:2015(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
International Standards areThe procedures used to develop this document and those intended for its
further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval
criteria needed for the different types of ISO documents should be noted. This document was drafted
in accordance with the rules given ineditorial rules of the ISO/IEC Directives, Part 32 (see www.iso.
org/directives).
Draft International Standards adopted by the technical committees are circulated to the member bodies
for voting. Publication as an International Standard requires approval by at least 75 % of the member
bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this part ofdocument ISO 9022may
be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent
rights. Details of any patent rights identified during the development of the document will be in the
Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO’s adherence to the WTO principles in the Technical Barriers
to Trade (TBT) see the following URL: Foreword - Supplementary information
International StandardThe committee ISO 9022-2 was prepared by Technical Committeeresponsible
for this document is ISO/TC 172, Optics and optical instrumentsphotonics, Subcommittee SC 1,
Fundamental standards.
This secondthird edition cancels and replaces the firstsecond edition (ISO 9022-2:19942002), Tables 2,
3 and 7 of which have been technically revisedof which it constitutes a minor revision.
ISO 9022 consists of the following parts, under the general title Optics and optical instrumentsphotonics —
Environmental test methods:
— Part 1: Definitions, extent of testing
— Part 2: Cold, heat and humidity
— Part 3: Mechanical stress
— Part 4: Salt mist
— Part 5: Combined cold, low air pressure6: Dust
— Part 6: Dust
— Part 7: Drip, Resistance to drip or rain
— Part 8: High internal pressure, low internal pressure, immersion
— Part 9: Solar radiation and weathering
— Part 10: Combined sinusoidal vibration and dry heat or cold
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ISO 9022-2:redline:2015(E)

— Part 11: Mould growth
— Part 12: Contamination
— Part 13: Combined shock, bump or free fall and dry heat or cold
— Part 14: Dew, hoarfrost, ice
— Part 15: Combined digitally controlled broad-band random vibration and dry heat or cold
— Part 16: Combined bounce or steady-state acceleration and dry heat or cold
— Part 17: Combined contamination, solar radiation
— Part 18: Combined damp heat and low internal pressure
— Part 19: Temperature cycles combined with sinusoidal or random vibration
— Part 20: Humid atmosphere containing sulfur dioxide or hydrogen sulfide
— Part 21: Combined low pressure and ambient temperature or dry heat22: Combined cold, dry heat
or temperature change with bump or random vibration
— Part 23: Low pressure combined with cold, ambient temperature and dry and damp heat
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ISO 9022-2:redline:2015(E)

Introduction
Optical instruments are affected during their use by a number of different environmental parameters
which they are required to resist without significant reduction in performance and to remain within
defined specifications.
The type and severity of these parameters depend on the conditions of use of the instrument (for example,
in the laboratory or workshop) and on its geographical location. The environmental effects on optical
instrument performance in the tropics and subtropics are totally different from those found when they
are used in the arctic regions. Individual parameters cause a variety of different and overlapping effects
on instrument performance.
The manufacturer attempts to ensure, and the user naturally expects, that instruments will resist the
likely rigours of their environment throughout their life. This expectation can be assessed by exposure
of the instrument to a range of simulated environmental parameters under controlled laboratory
conditions. The severity of these conditions is often increased to obtain meaningful results in a relatively
short period of time.
In order to allow assessment and comparison of the response of optical instruments to appropriate
environmental conditions, ISO 9022 contains details of a number of laboratory tests which reliably
simulate a variety of different environments. The tests are based largely on IEC standards, modified
where necessary to take into account features special to optical instruments.
It should be noted that, asAs a result of continuous progress in all fields, optical instruments are no
longer only precision-engineered optical products, but, depending on their range of application, also
contain additional assemblies from other fields. For this reason, the principal function of the instrument
mustis to be assessed to determine which International Standard should be used for testing. If the optical
function is of primary importance, then ISO 9022 is applicable, but if other functions take precedence
then the appropriate International Standard in the field concerned should be applied. Cases may arise
where application of both ISO 9022 and other appropriate International Standards will be necessary.
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INTERNATIONAL STANDARD ISO 9022-2:redline:2015(E)
Optics and photonics — Environmental test methods —
Part 2:
Cold, heat and humidity
1 Scope
This part of ISO 9022 specifies methods for the testingthe methods relating to the environmental tests
of optical instruments and instruments containing optical componentsincluding additional assemblies
from other fields (e.g. mechanical, chemical, and electronic devices), under equivalent conditions, for
their ability to resist the influence of temperature and air/or humidity.
The purpose of the testing is to investigate to what extent the optical, thermalclimatic, mechanical,
chemical, and electrical (including electrostatic) performance characteristics of the specimen are
affected by temperature and/or humidity.
2 Normative reference references
The following normative document contains provisions which, through reference in this text, constitute
provisions of this part of documents, in whole or in part, are normatively referenced in this document
and are indispensable for its applicationISO 9022. For dated references, subsequent amendments
to, or revisions of, this publication do not apply. However, parties to agreements based on this part
ofonly ISO 9022 are encouraged to investigate the possibility of applying the most recent edition of the
normative document indicated belowthe edition cited applies. For undated references, the latest edition
of the normative document referred to applies. Members of ISO and IEC maintain registers of currently
valid International Standards.referenced document (including any amendments) applies.
ISO 9022-1:1994 , Optics and optical instruments photonics — Environmental test methods — Part 1:
Definitions, extent of testing
3 General information and test conditions
The specimen is exposed to climatic stress in conditioning chambers or cabinets providing air circulation.
The size of the specimens and their arrangement shall be such as to ensure a uniform conditioning of
all specimens. Where moisture condensation is likely to occur, the condensate shall be prevented from
dripping onto the specimen.
Where heat-dissipating specimens are involved, the relevant specification shall state the number,
method of installation and location of the heat sensors.
WARNING —  — Persons entering test chambers with dew-point temperatures of equal to or greater
than 38 °C must be equipped with breathing apparatus (e.g. conditioning methods 12, 13, and 16).
4 Conditioning
4.1 General
The required exposure time shall not commence until all parts of the specimen have reached a
temperature within at least 3 K of the test chamber temperature. For heat-dissipating specimen
...