ISO 10109-8:2005

INTERNATIONAL ISO
STANDARD 10109-8
Second edition
2005-11-15

Optics and photonics — Environmental
requirements —
Part 8:
Test requirements for extreme conditions
of use
Optique et photonique — Exigences environnementales —
Partie 8: Exigences d'essai pour conditions d'utilisation extrêmes



Reference number
ISO 10109-8:2005(E)
©
ISO 2005

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ISO 10109-8:2005(E)
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ii © ISO 2005 – All rights reserved

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ISO 10109-8:2005(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 are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. 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 document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 10109-8 was prepared by Technical Committee ISO/TC 172, Optics and photonics, Subcommittee SC 1,
Fundamental standards.
This second edition cancels and replaces the first edition (ISO 10109-8:1994), which has been technically
revised.
ISO 10109 consists of the following parts, under the general title Optics and photonics — Environmental
requirements:
— Part 1: General overview, terms and definitions, climatic zones and their parameters
— Part 4: Test requirements for telescopic systems
— Part 6: Test requirements for medical optical instruments
— Part 7: Test requirements for optical measuring instruments
— Part 8: Test requirements for extreme conditions of use
— Part 11: Optical instruments for outdoor conditions of use
— Part 12: Conditions of transport for optical instruments

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INTERNATIONAL STANDARD ISO 10109-8:2005(E)

Optics and photonics — Environmental requirements —
Part 8:
Test requirements for extreme conditions of use
1 Scope
This part of ISO 10109 is applicable to optical instruments and instruments with optical assemblies in extreme
conditions of use.
It specifies requirements to be met with regard to the resistance of the optical, mechanical, chemical and
electrical properties or performance data of instruments to environmental influences and hence determines
geographical and technical areas of application. Environmental test methods, as specified in ISO 9022 (all
parts), are assigned to the various areas of application for the purpose of ascertaining the suitability of the
instruments in their respective area of application.
This part of ISO 10109 is the basis for the specification of environmental requirements and environmental
tests in instrument standards. If necessary, these requirements and tests can be amended in the instrument
standards.
This part of ISO 10109 does not deal with the requirements to be met by the packaging of the instrument
during transport from the manufacturer to the user.
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.
ISO 9022-1:1994, Optics and optical instruments — Environmental test methods — Part 1: Definitions, extent
of testing
ISO 9022-2:2002, Optics and optical instruments — Environmental test methods — Part 2: Cold, heat and
humidity
ISO 9022-3:1998, Optics and optical instruments — Environmental test methods — Part 3: Mechanical stress
ISO 9022-4:2002, Optics and optical instruments — Environmental test methods — Part 4: Salt mist
ISO 9022-5:1994, Optics and optical instruments — Environmental test methods — Part 5: Combined cold,
low air pressure
ISO 9022-6:1994, Optics and optical instruments — Environmental test methods — Part 6: Dust
ISO 9022-7:2005, Optics and photonics — Environmental test methods — Part 7: Resistance to drip or rain
ISO 9022-8:1994, Optics and optical instruments — Environmental test methods — Part 8: High pressure, low
pressure, immersion
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ISO 10109-8:2005(E)
ISO 9022-9:1994, Optics and optical instruments — Environmental test methods — Part 9: Solar radiation
ISO 9022-10:1998, Optics and optical instruments — Environmental test methods — Part 10: Combined
sinusoidal vibration and dry heat or cold
ISO 9022-11:1994, Optics and optical instruments — Environmental test methods — Part 11: Mould growth
ISO 9022-12:1994, Optics and optical instruments — Environmental test methods — Part 12: Contamination
ISO 9022-13:1998, Optics and optical instruments — Environmental test methods — Part 13: Combined
shock, bump or free fall and dry heat or cold
ISO 9022-14:1994, Optics and optical instruments — Environmental test methods — Part 14: Dew, hoarfrost,
ice
ISO 9022-16:1998, Optics and optical instruments — Environmental test methods — Part 16: Combined
bounce or steady-state acceleration and dry heat or cold
ISO 9022-17:1994, Optics and optical instruments — Environmental test methods — Part 17: Combined
contamination, solar radiation
ISO 9022-18:1994, Optics and optical instruments — Environmental test methods — Part 18: Combined damp
heat and low internal pressure
ISO 10109-1:2005, Optics and photonics — Environmental requirements — Part 1: General overview, terms
and definitions, climatic zones and their parameters
3 Terms and definitions
For the purposes of this document, the terms and definitions given in ISO 9022-1 and ISO 10109-1 apply.
4 Subdivision of instruments for extreme conditions of use
Instruments for extreme conditions of use are subdivided into instrument types with the type numbers given in
Table 1.
NOTE Previously, instruments for extreme conditions of use were designated as instrument group number 07,
however, the use of group numbers is no longer recommended.
Table 1 — Subdivision of instruments for extreme conditions of use
Type number Instrument type
01 Mainly instruments for ground use, except when used in extreme polar conditions
02 Mainly instruments exposed to maritime climatic conditions
03 Mainly instruments for use in aircraft and instruments in global use

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ISO 10109-8:2005(E)
5 Designation of environmental requirements and of environmental tests
The relevant specification and other technical documents shall indicate the environmental requirements
required by this standard using the designation as per ISO 10109-1.
EXAMPLE An example of the designation for the environmental requirements for instruments for extreme conditions
of use of instrument Type 02, and requiring the extent “T” (type or sample testing) is:
Environmental requirements ISO 10109-P08-02-T
In relevant specifications and other technical documentation, tests carried out in accordance with the
environmental requirements given in this part of ISO 10109 shall be the environmental test code as specified
in ISO 9022-1.
6 Type of testing on the basis of technical requirements
Table 2 specifies the technical requirements and the conditioning methods for the extent of testing T (type or
sample testing). Table 3 shows a summary of the tests given in Table 2 as specified in the appropriate part of
ISO 9022.
Table 4 specifies the technical requirements and the conditioning methods for the extent of testing S (series
testing). Table 5 shows a summary of the tests given in Table 4 as specified in the appropriate part of
ISO 9022.
Further technical requirements to be met by instruments for extreme conditions of use which are not contained
in Tables 2 and 4 may be selected from Table 6, if required, and shall be agreed separately between the
customer and manufacturer. Table 7 shows a summary of the tests given in Table 6 as specified in the
appropriate part of ISO 9022.
For each of the conditioning methods given in Tables 2, 4 and 6, the instrument is suitable for the technical
requirement specified if it is operative without restriction after conditioning.
For the purposes of this part of ISO 10109, the value of g is rounded up to the next highest integer, that is
n
2
10 m/s .
All tests shall be performed as specified in the appropriate part of ISO 9022. The tests may be performed in
any order, if not specified otherwise.
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ISO 10109-8:2005(E)
Table 2 — Technical requirements and conditioning methods for extent of testing T
Mainly instruments
Mainly instruments Mainly instruments
for ground use,
exposed to for use in aircraft
ISO 9022 Instrument type except when used in
maritime climatic and instruments in
extreme polar
Serial
conditions global use
conditions
No.
Type No. 01 02 03
Condition-
Part
ing method
a
State of operation 0 1 2 0 1 2 0 1 2
b b
1 2 10 Technical Temperature −55 −40 −35 −35 −25 −25 −65 −65 −65
requirement °C −40 −40
Cold
a b b
Degree of severity 09 08 07 07 05 05 10 10 10
08 08
2 2 11 Technical Temperature 70 63 63 70 55 55 70 63 63
requirement °C
Dry heat
a
Degree of severity 05 04 04 05 03 03 05 04 04
3 2 14 Technical Temperature t — 63 55 — 55 40 — 70 70
2
requirement °C
b b
Slow
t — −35 −25 — −25 −10 — −65 −65
1
tempera-
a b b
Degree of severity — 05 02 — 02 01 — 08 08
ture change
4 2 15 Technical Temperature t — 40 — — 40 — — 55 55
2
requirement °C
Rapid t — −25 — — −25 — — −40 −40
1
tempera-
a
Degree of severity — 02 — — 02 — — 03 03
ture change
5 2 16 Technical Temperature °C/ — 40/92 40/92 — 40/ 40/92 — 40/92 40/92
requirement Relative humidity % 92
Damp heat
cyclic
— 23/83 23/83 — 23/ 23/83 — 23/83 23/83
83
a
Degree of severity — 02 01 — 02 01 — 02 01
6 3 30 Technical Acceleration g — 500 30 — 30 15 — 500 50
requirement
Shock
ms — 1 6 — 18 11 — 1 3
Duration
a c c, d
Degree of severity — 08 03 — 04 02 — 08 05
7 3 31 Technical Acceleration g — 10 10 — 10 10 — 10 10
requirement
Bump
ms — 6 6 — 6 6 — 6 6
Duration
a
Degree of severity — 01 01 — 01 01 — 01 01
8 3 32 Technical Height of overturn — 100 — — 100 — — 100 —
requirement
Drop and
a e e e
topple Degree of severity — 03 — — 03 — — 03 —
9 3 33 Technical Height of fall Mass-dependent
requirement
Free fall
a f f, g f f, g g f, g
Degree of severity  —  —  —
10 3 34 Technical requirement Mechanical stresses during transport
a
Bounce
Degree of severity 03 — — 03 — — 03 — —
11 3 36 Technical Displacement — — — — 1 1 — — —
requirement mm
Sinusoidal
vibration
Acceleration — 1 1 — — — — 5 2
g
Frequency range — 10 10 — 10 10 — 10 10
Hz to to to to to to
2 000 2 000 55 55 2 000 2 000
a h h
Degree of severity — 02 02 — 10 10 — 09 06

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ISO 10109-8:2005(E)
Table 2 (continued)
Mainly instruments
Mainly instruments Mainly instruments
for ground use,
exposed to for use in aircraft and
ISO 9022 Instrument type except when used in
maritime climatic instruments in global
extreme polar
Serial
conditions use
conditions
No.
Type No. 01 02 03
Condition-
Part
ing method
a
State of operation 0 1 2 0 1 2 0 1 2
i
12 4 40 Technical requirement Corrosion resistance
a
Salt mist Degree of severity — 05 — — 06 — — 05 —
13 7 74 up to 21
Technical Wind velocity
requirement m/s
Driving rain
Rain rate up to 10
mm/min
a
Degree of severity — 02 02 — 02 02 — 02 02
14 8 80 Technical Difference — — — — — — — 400 —
requirement from ambient
High
pressure
internal
hPa
pressure
a
Degree of severity — — — — — — — 10 —
15 8 81 Technical Difference — — — — — — — 400 —
requirement from ambient
Low internal
pressure
pressure
hPa
a
Degr
...