IEC 61760-2:2021

IEC 61760-2 ®
Edition 3.0 2021-07
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Surface mounting technology –
Part 2: Transportation and storage conditions of surface mounting devices
(SMD) – Application guide
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IEC 61760-2 ®
Edition 3.0 2021-07
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Surface mounting technology –
Part 2: Transportation and storage conditions of surface mounting devices
(SMD) – Application guide
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 31.240 ISBN 978-2-8322-4950-5

– 2 – IEC 61760-2:2021 RLV © IEC 2021
CONTENTS
FOREWORD . 3
1 Scope and object . 5
2 Normative references. 5
3 Terms and definitions . 6
4 General conditions . 5
5 Transportation conditions . 6
5.1 General transportation conditions . 6
5.2 Special transportation conditions . 7
5.2.1 General . 7
5.2.2 Category 1 (advised for all products) . 7
5.2.3 Category 2 . 7
6 Storage conditions . 7
7 Related issues . 8
Annex A (informative) Transportation climatic and storage conditions . 9
Annex X (informative) Cross-references for references to the previous edition of this
document . 17
Bibliography . 18

Figure A.1 – Consolidation of mechanical conditions . 15

Table A.1 – Transportation climatic conditions according to IEC 60721-3-2 .
Table A.2 – Transportation mechanical conditions according to IEC 60721-3-2 .
Table A.3 – Storage conditions according to IEC 60721-3-1 .
Table A.1 – Classification of climatic conditions according to IEC 60721-3-2:2018,
Table 1 . 13
Table A.2 – Classification of mechanical conditions according to IEC 60721-3-2:2018,
Table 5 . 14
Table A.3 – Storage conditions according to IEC 60721-3-1:2018, Table 1 . 16
Table X.1 – Cross-references . 17

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SURFACE MOUNTING TECHNOLOGY –
Part 2: Transportation and storage conditions
of surface mounting devices (SMD) –
Application guide
FOREWORD
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This redline version of the official IEC Standard allows the user to identify the changes made to
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– 4 – IEC 61760-2:2021 RLV © IEC 2021
IEC 61760-2 has been prepared by IEC technical committee 91: Electronics assembly
technology. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
91/1666/CDV 91/1708/RVC
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
Cross-references for references from this edition 3 to the previous edition 2 of this document
are listed in Annex X of this document.
A list of all parts in the IEC 61760 series, published under the general title Surface mounting
technology, 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 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.
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.

SURFACE MOUNTING TECHNOLOGY –
Part 2: Transportation and storage conditions
of surface mounting devices (SMD) –
Application guide
1 Scope and object
This International Standard describes specifies the transportation and storage conditions for
surface mounting devices (SMDs) that are fulfilled in order to enable trouble-free processing of
surface mounting devices, both active and passive. (Conditions for printed boards are not taken
into consideration.)
The object of this document is to ensure that users of SMDs receive and store products that
can be further processed (e.g. positioned, soldered) without prejudice to quality and reliability.
Improper transportation and storage of SMDs may can cause deterioration and result in
assembly problems such as poor solderability, delamination and "popcorning".
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 60286-3, Packaging of components for automatic handling – Part 3: Packaging of surface
mount components on continuous tapes
IEC 60286-4, Packaging of components for automatic handling – Part 4: Stick magazines for
electronic components encapsulated in packages of form E and G
IEC 60286-5, Packaging of components for automatic handling – Part 5: Matrix trays
IEC 60286-6, Packaging of components for automatic handling – Part 6: Bulk case packaging
for surface mounting components
IEC 60721-3-1:2018, Classification of environmental conditions – Part 3-1: Classification of
groups of environmental parameters and their severities –: Storage
IEC 60721-3-2:2018, Classification of environmental conditions – Part 3-2: Classification of
groups of environmental parameters and their severities –: Transportation and handling
IEC 60749 (all parts), Semiconductor devices – Mechanical and climatic test methods
IEC/TS 61340-5-1, Electrostatics – Part 5-1: Protection of electronic devices from electrostatic
phenomena – General requirements
IEC/TR 61340-5-2, Electrostatics – Part 5-2: Protection of electronic devices from electrostatic
phenomena – User guide
– 6 – IEC 61760-2:2021 RLV © IEC 2021
3 Terms and definitions
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
No terms and definitions are listed in this document.
4 General conditions
Surface mounting devices shall be packed in such a way that products are protected during
transportation and storage without loss of their properties arising from mechanical,
environmental and electrical influences. Packing requirements as defined in various IEC
publications, such as IEC 60286-3, IEC 60286-4, IEC 60286-5, IEC 60286-6 and
IEC TR 61340-5-5 may can contribute to the protection of components during transportation
and storage.
If dry packing is specified and used, the IEC publications IEC 61760-4, IEC 60749-20-1 and
IPC/JEDEC J-STD-033 should be consulted.
Usually, transportation conditions are less controlled than storage conditions. Nevertheless,
conditions shall be controlled and deviations from the advised conditions in this document
should be reduced to as little time as possible.
5 Transportation conditions
5.1 General transportation conditions
During transportation, the SMDs, including their chosen style of tapes or stick magazines, etc.,
shall be protected against extreme temperature, humidity, and mechanical forces. Unless
otherwise specified by the component supplier, the following environmental conditions shall be
met:
Climatic condition are according to IEC 60721-3-2:2018, class 2K12, except Deviations from
these conditions are listed below:
– low air temperature: −40 °C;
– change of temperature air/air: –40 °C / +30 °C,
– low air pressure: 30 kPa,
– change of air pressure: 6 kPa/min; high relative humidity 75 %;
– no dripping water;
– no condensation is allowed.
The conditions are presented in tabular form in Annex A, Table A.1.
The total number of extreme temperature events (close to limits) should be limited to a minimum
during transportation and storage.
Mechanical condition is according to IEC 60721-3-2:2018, class 2M1 2M4. The condition is
presented in tabular form, including a figure, in Annex A, Table A.2 and Figure A.1.
Transportation shall be managed in such a way that boxes are not deformed and forces are not
directly passed on to the inner packaging.

Total transportation time shall be as short as possible, but preferably not exceeding 10 days.
(Total transportation time is time when products are not within controlled storage conditions.)
5.2 Special transportation conditions
5.2.1 General
Depending on the sensitivity of the products to be transported, a choice shall be made between
air transport, where conditions during flight are well controlled, or less controlled conditions,
e.g. during rail or road transportation.
5.2.2 Category 1 (advised for all products)
Air transport (conditions during flights with conditioned cargo room).
Climatic conditions are according to IEC 60721-3-2:2018, class 2K11. Deviations from these
conditions are listed below:
– low air temperature −40 °C;
– low relative humidity 10 %;
– high relative humidity 75 %;
– low air pressure 30 kPa.
The conditions are presented in tabular form in Annex A, Table A.1.
It should be realised that waiting time and loading operations at the airport are under less
controlled conditions. These shall at least fulfil the general transportation conditions stated
in 5.1.
5.2.3 Category 2
Rail, road, and unconditioned air transportation.
Only allowed for products and packaging systems that are not sensitive to the general
transportation conditions stated in 5.1.
Minimum air pressure: corresponding to an altitude of < 12 km (about 19,3 kPa).
6 Storage conditions
Well controlled storage conditions are a major factor in problem prevention. Do not store in
locations where the soldering properties can be deteriorated by harmful gases. Conditions that
may can expose products to detrimental electrical field strengths should be avoided. Exposure
of the products to direct solar radiation should be avoided.
The following conditions are advised:
Climatic conditions are according to IEC 60721-3-1:2018, class 1K21, except.
Deviations from these conditions are listed below:
– low relative humidity 10 %;
– high relative humidity 75 %;
– solar radiation 700 W/m , but direct solar radiation should be avoided.
The conditions are presented in tabular form in Annex A, Table A.3.

– 8 – IEC 61760-2:2021 RLV © IEC 2021
The storage time as given by the manufacturer specification shall not be exceeded. It is however
recommended that the total storage time should not exceed two years (manufacturer and
customer) but should be limited to one year after receipt of the products by the customer. In
specific cases, the exact storage time and the re-qualification rules, if the time is exceeded, are
given in the component specification. As a minimum, at least the solderability of the components
has to shall be re-qualified.
If longer storage times are needed, the manufacturer should be consulted to conclude
arrangements for suitable storage and packaging conditions.
During storage the original smallest packaging unit (SPU) shall not be opened, the SPU should
preferably remain in the original packaging.
Even though products are stored for a shorter period of time, it is advised to apply the
temperature and humidity conditions set out in this Clause 6.
For "last call" components, the storage conditions to conserve the component's properties shall
be agreed between the manufacturer and the user.
7 Related issues
If the products in standard packaging do not fulfil the required quality and reliability goals under
the shipment and storage conditions as described in Clause 5 and Clause 6, special actions
shall be considered as described in IEC 60749 (all parts), IEC/TS 61340-5-1 and
IEC TR 61340-5-2.
Considerations for risk mitigation, packaged component long-term storage and associated
traceability, can be found in IEC 62435 (all parts).

Annex A
(informative)
Transportation climatic and storage conditions

For easy and rapid reference, this Annex A shows the content of the quoted conditions from
IEC 60721-3-1:2018 and IEC 60721-3-2:2018.
The information is presented on following pages in tabular form in Table A.1, Table A.2 and
Table A.3. In each table the deviations given in this document from conditions provided in
IEC 60721-3-2 and from IEC 60721-3-1 are specified, if any.
Table A.1 – Classification of climatic conditions according to IEC 60721-3-2:2018, Table 1.
Table A.2 – Classification of mechanical conditions according to IEC 60721-3-2:2018, Table 5
and Figure 2.
Table A.3 – Storage conditions according to IEC 60721-3-1:2018, Table 1.

– 10 – IEC 61760-2:2021 RLV © IEC 2021
NOTE The footnote references can be found on the last page.
Table A.1 – Transportation climatic conditions according to IEC 60721-3-2
Class Conditions used in
this standard
Environmental parameter Unit
instead of 2K2
2K1 2K2
a) Low air temperature °C +5
−25 −40
b) High air temperature, air in unventilated °C No +60

1)
enclosures
c) High air temperature, air in ventilated °C +40 +40

2)
enclosures or outdoor air
3)
°C No
d) Change of temperature, air/air −25/+25 −40/+30

3)
e) Change of temperature, air/water °C No No
f) Relative humidity, not combined with rapid % 75 75
temperature changes
°C +30 +30
g) Relative humidity, combined with rapid % No No
temperature changes: air/air at high relative
°C
3)
humidity
h) Absolute humidity, combined with rapid g/m No No

temperature changes: air/air at high water

4)
°C
content
i) Low air pressure kPa 70 70 30
j) Change of air pressure kPa/min No No 6
k) Movement of surrounding medium, air m/s No No
l) Precipitation, rain mm/min No No

m) Radiation, solar W/m 700 700

n) Radiation, heat W/m No No
5)
m/s No No
o) Water from sources other than rain
p) Wetness None No No
1)
The high temperature of the surface of a product may be influenced by both the surrounding air temperature
given here and the solar radiation through a window or other opening.
2)
The high temperature of the surface of a product is influenced by the surrounding air temperature given here
and the solar radiation defined below.
3)
A direct transfer of the product between the two temperatures given is presumed.
4)
The product is assumed to be subject to a rapid decrease of temperature only (no rapid increase). The figures of
water content apply to temperatures down to the dew-point; at lower temperatures the relative humidity is
assumed to be approximately 100 %.
5)
The figure indicates the velocity of water and not the height of water accumulated.

Table A.2 – Transportation mechanical conditions according to IEC 60721-3-2
Class
Environmental parameter Unit
2M1
1)
a) Stationary vibration, sinusoidal :
displacement amplitude mm  3,5            -             -
acceleration amplitude m/s   -            10      15

frequency range Hz  2-9   9-200      200-500
1)
b) Stationary vibration, random
2 2
acceleration spectral density m /s 1  0,3

frequency range Hz  10-200      200-2 000
2)
c) Non-stationary vibration including shock :
shock response spectrum type I, peak acceleration m/s 100
shock response spectrum type II, peak m/s No
acceleration
d) Free fall:
Mass less than 20 kg m 0,25
Mass 20 kg to 100 kg m 0,25
Mass more than 100 kg m 0,1
e) Toppling:
Mass less than 20 kg None Toppling around any of the edges
Mass 20 kg to 100 kg None No
Mass more than 100 kg None No
f) Rolling, pitching:
3)
Angle Degree No
Period s No
g) Steady-state acceleration m/s 20
h) Static load kPa 5
1)
The frequency range may be limited to 200 Hz for transportation on parts of the vehicle with high internal
damping.
2)
See Figure 1 in IEC 60721-3-2.
3)
An angle of 35° only occurs temporarily, but angles up to 22,5° can be reached for long periods of time.

– 12 – IEC 61760-2:2021 RLV © IEC 2021
Table A.3 – Storage conditions according to IEC 60721-3-1
Class Conditions used in this
standard instead of 1K2
Environmental parameter Unit
1K2
a) Low air temperature °C +5
b) High air temperature °C +40

1)
c) Low relative humidity % 5 10

1)
% 85 75
d) High relative humidity
1) 3
e) Low absolute humidity g/m 1

1) 3
f) High absolute humidity g/m 25

2)
g) Rate of change of temperature °C/min 0,5

3)
h) Low air pressure kPa 70
3)
i) High air pressure kPa 106
2 6)
j) Solar radiation 700
W/m
7)
k) Heat radiation None
4) 8)
l) Movement of surrounding air m/s 1,0

m) Condensation None No
n) Precipitation (rain, snow, hail, etc.) None No

o) Rain intensity Mm/min None
5)
p) Low rain temperature °C None
q) Water from sources other than rain None No
r) Formation of ice and frost None No
1)
The low and high relative humidities are limited by the low and high absolute humidities, so that, for example, for
environmental parameters a) and c), or b) and d), the severities given in table do not occur simultaneously.
2)
Averaged over a period of time of 5 min.
3)
The value of 70 kPa represents a limit for open-air conditions, normally at an altitude of 3 000 m. In some
geographical areas, open-air conditions may occur at higher altitudes. Conditions in mines are not considered.
4)
A cooling system based on non-assisted convection may be disturbed by adverse movement of surrounding air.
5)
This rain temperature should be considered together with high air temperature b) and solar radiation j). The
cooling effect of the rain has to be considered in connection with the surface temperature of the product.
6)
Exposure of the products to direct solar radiation should be avoided.
7)
Conditions occurring at the location concerned to be selected: either 1Z1 = negligible, or 1Z2 = conditions of
heat radiation, e.g. in the vicinity of room heating systems.
8)
If applicable, a specific value may be selected either 1Z3 = 30 m/s or 1Z4 = 50 m/s.

Table A.1 – Classification of climatic conditions according to
IEC 60721-3-2:2018, Table 1
Classification
Conditions used in
this document
Environmental parameter Unit Weather-protected
instead of those of
IEC 60721-3-2
2K11 2K12 2K11 2K12
a) Low air temperature °C +5
−45 −40 −40
b) High air temperature °C +40 +70 +60 +60
1)
% 5 4 10 10
c) Low relative humidity
1)
% 85 100 75 75
d) High relative humidity
1) 3
1 0,5
e) Low absolute humidity g/m
1) 3
25 29
f) High absolute humidity g/m
2)
°C/min 0,5 1,0
g) Rate of change of temperature
3)
kPa 70 70 30 30
h) Low air pressure
3) 7) 7)
kPa 106 106
i) High air pressure
2 6)
j) Solar radiation No
W/m
k) Heat radiation Not specified None None
4)
m/s 1,0 1,0
l) Movement of surrounding air

m) Condensation Not specified No Yes No
n) Precipitation (rain, snow, hail, etc.) Not specified No No
o) Rain intensity mm/min None None
p) Driving rain m/s None None
q) Snow load None None
kg/m
5)
°C None None
r) Low rain temperature
s) Water from sources other than rain Not specified No Dripping No
Water
t) Formation of ice and frost (including freeze- Not specified No Yes
thaw)
u) Temperature shock Not specified No Yes
1)
The low and high relative humidity levels are limited by the low and high absolute humidity, so that, for
example, for environmental parameters a) and c), or b) and d), the severities given in Table A.1 do not occur
simultaneously.
2)
Averaged over a period of time of 5 min.
3)
The value of 70 kPa represents a limit for open-air conditions, normally at an altitude of 3 000 m. In some
geographical areas, open-air conditions can occur at higher altitudes. Conditions in mines are not considered.
4)
A cooling system based on non-assisted convection can be disturbed by adverse movement of surrounding
air.
5)
This rain temperature should be considered together with high air temperature b) and solar radiation j). The
cooling effect of the rain has to be considered in connection with the surface temperature of the product.
6)
Thermal effect of solar radiation is included in the temperature.
7)
Extra requirement in this document: change of air pressure 6 kPa/min.

– 14 – IEC 61760-2:2021 RLV © IEC 2021
Table A.2 – Classification of mechanical conditions
according to IEC 60721-3-2:2018, Table 5
Environmental Unit Class
parameter
2M4
a) Stationary vibration,
random:
2 2 2)
acceleration power 1,0 0,5
(m/s ) /Hz 10
spectral density
1)
Hz 2 to 3 10 to 20 50 to 2 000
frequency range
b) Non-stationary vibration Figure A.1 Curve 4
3)
including shock:
(equivalent to a half sine pulse of 100 m/s and 11 ms duration)
4)
Shock 1
4)
Figure A.1 Curve 2
Shock 2
(equivalent to a half sine pulse of 300 m/s and 6 ms duration)
c) Free fall:
mass less than 20 kg m 0,25
mass 20 kg to 100 kg m 0,25
mass more than 100 kg m 0,1
d) Toppling:
mass less than 20 kg None Toppling around any of the edges
mass 20 kg to 100 kg No
mass more than 100 kg No
e) Rolling, pitching: degrees No
5)
No
angle period
f) Steady-state 20
m/s
acceleration
g) Static load kPa 5
1)
When transport only occurs by rail, river, sea and road, the upper frequency considered may be reduced to
500 Hz for products that are not sensitive to vibration excitations above 500 Hz.
2)
The low frequency stationary vibration random component arises from the influence of land vehicle suspension
systems. The component is included for design purposes but is not always included in vibration test
specifications.
3)
For land vehicles, these shocks can occur simultaneously with the stationary vibration random conditions.
4)
Both shocks would normally be used to encompass different aspects of the shock environment.
5)
An angle of 35° may only occur temporarily. An angle of up to 22,5° can be reached for long periods of time.

SOURCE: IEC 60721-3-2:2018, Figure 2
Figure A.1 – Consolidation of mechanical conditions

– 16 – IEC 61760-2:2021 RLV © IEC 2021
Table A.3 – Storage conditions according to IEC 60721-3-1:2018, Table 1
Unit Conditions used in
Class
this document
Environmental Parameter
instead of those of
1K21
class 1K21
a) Low air temperature °C +5
b) High air temperature °C +40
1)
% 5 10
c) Low relative humidity
1)
% 85 75
d) High relative humidity
1) 3
e) Low absolute humidity g/m
1) 3
f) High absolute humidity g/m
2)
°C/min 0,5
g) Rate of change of temperature
3)
kPa 70
h) Low air pressure
3)
kPa 106
i) High air pressure
2 8)
j) Solar radiation 6)
W/m 700
k) Heat radiation Not specified 7)
4)
m/s 1,0
l) Movement of surrounding air
m) Condensation Not specified No
n) Precipitation (rain, snow, hail, etc.) Not specified No
o) Rain intensity mm/min None
p) Driving rain m/s None
q) Snow load None
kg/m
5)
°C None
r) Low rain temperature
s) Water from sources other than rain No
L/m /min
t) Formation of ice and frost (including Not specified No
freeze-thaw)
1) The low and high relative humidity levels are limited by the low and high absolute humidities, so that, for
example, for environmental parameters a) and c), or b) and d), the severities given in Table 1 do not occur
simultaneously.
2) Averaged over a period of time of 5 min.
3) The value of 70 kPa represents a limit for open-air conditions, normally at an altitude of 3 000 m. In some
geographical areas, open-air conditions can occur at higher altitudes. Conditions in mines are not considered.
4) A cooling system based on non-assisted convection can be disturbed by adverse movement of surrounding
air.
5) This rain temperature should be considered together with high air temperature b) and solar radiation j). The
cooling effect of the rain has to be considered in connection with the surface temperature of the product.
2 2
6) Either 500 W/m or 700 W/m .
7) Either 1Z1 = negligible or 1Z2 = conditions of heat radiation, e.g. in the vicinity of room heating system.
8) In this document: direct solar radiation should be avoided.

Annex X
(informative)
Cross-references for references to
the previous edition of this document
The revision of this document has resulted in a new structure. Table X.1 provides cross-
references for all references to specific elements of the previous edition.
Table X.1 – Cross-references
IEC 61760-2:2007 IEC 61760-2:2021 Notes
(Edition 2.0) (Edition 3.0)
Clause/subclause Clause/subclause
1 1
2 2
- 3
3 4
4 5
4.1 5.1
4.2 5.2
- 5.2.1
4.2.1 5.2.2
4.2.2 5.2.3
5 6
6 7
Annex A Annex A
- Annex X
Table A.1 Table A.1
Table A.2 Table A.2
Table A.3 Table A.3
– 18 – IEC 61760-2:2021 RLV © IEC 2021
Bibliography
IEC 60286-3, Packaging of components for automatic handling – Part 3: Packaging of surface
mount components on continuous tapes
IEC 60286-4, Packaging of components for automatic handling – Part 4: Stick magazines for
electronic components encapsulated in packages of different forms
IEC 60286-5, Packaging of components for automatic handling – Part 5: Matrix trays
IEC 60286-6, Packaging of components for automatic handling – Part 6: Bulk case packaging
for surface mounting components
IEC 60749 (all parts), Semiconductor devices – Mechanical and climatic test methods
IEC 60749-20-1:2019, Semiconductor devices – Mechanical and climatic test methods –
Part 20-1: Handling, packing, labelling and shipping of surface-mount devices sensitive to the
combined effect of moisture and soldering heat
IEC 61340-5-1, Electrostatics – Part 5-1: Protection of electronic devices from electrostatic
phenomena – General requirements
IEC TR 61340-5-2, Electrostatics – Part 5-2: Protection of electronic devices from electrostatic
phenomena – User guide
IEC TR 61340-5-5, Electrostatics – Part 5-5: Protection of electronic devices from electrostatic
phenomena – Packaging systems used in electronic manufacturing
IEC 61760-4:2015, Surface mounting technology – Part 4: Classification, packaging, labelling
and handling of moisture sensitive devices
IEC 61760-4:2015/AMD1:2018
IEC 62435 (all parts), Electronic components – Long-term storage of electronic semiconductor
devices
IPC/JEDEC J-STD-033D, 2018, Handling, Packing, Shipping and Use of Moisture/Reflow
Sensitive Surface-Mount Devices

___________
IEC 61760-2 ®
Edition 3.0 2021-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Surface mounting technology –
Part 2: Transportation and storage conditions of surface mounting devices
(SMD) – Application guide
Technique du montage en surface –
Partie 2: Conditions de transport et de stockage des composants pour montage
en surface (CMS) – Guide d’application

– 2 – IEC 61760-2:2021 © IEC 2021
CONTENTS
FOREWORD . 3
1 Scope . 5
2 Normative references. 5
3 Terms and definitions . 5
4 General conditions . 5
5 Transportation conditions . 6
5.1 General transportation conditions . 6
5.2 Special transportation conditions . 6
5.2.1 General . 6
5.2.2 Category 1 (advised for all products) . 6
5.2.3 Category 2 . 7
6 Storage conditions . 7
7 Related issues . 8
Annex A (informative) Transportation and storage conditions . 9
Annex X (informative) Cross-references for references to the previous edition of this
document . 14
Bibliography . 15

Figure A.1 – Consolidation of mechanical conditions . 12

Table A.1 – Classification of climatic conditions according to IEC 60721-3-2:2018,
Table 1 . 10
Table A.2 – Classification of mechanical conditions according to IEC 60721-3-2:2018,
Table 5 . 11
Table A.3 – Storage conditions according to IEC 60721-3-1:2018, Table 1 . 13
Table X.1 – Cross-references . 14

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SURFACE MOUNTING TECHNOLOGY –
Part 2: Transportation and storage conditions
of surface mounting devices (SMD) –
Application guide
FOREWORD
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rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 61760-2 has been prepared by IEC technical committee 91: Electronics assembly
technology. It is an International Standard.
The text of this International Standard is based on the following documents:
Draft Report on voting
91/1666/CDV 91/1708/RVC
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available

– 4 – IEC 61760-2:2021 © IEC 2021
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
Cross-references for references from this edition 3 to the previous edition 2 of this document
are listed in Annex X of this document.
A list of all parts in the IEC 61760 series, published under the general title Surface mounting
technology, 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 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.
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 doc
...