IEC 60068: environmental and mechanical testing

Hugues Orgitelloupdated 7 Oct 202618 min read

A product can pass every EMC scan and every electrical-safety check and still fail in the field, cracked by vibration on a delivery truck, corroded by salt air on a harbour, or flooded by condensation after a cold night. The IEC 60068 family answers a different question from the directives: not "is it safe and quiet on the spectrum?" but "will it physically survive its environment?". This guide lists the current edition of each main IEC 60068-2 test (four of them were replaced in 2025), shows what each test leaves for the specification writer to decide, explains how the IEC 60721 environmental classes feed the choice of severities, and compares the series with automotive ISO 16750 and military MIL-STD-810H.

What IEC 60068 is, and is not

IEC 60068 is a multi-part standard prepared by IEC technical committee 104. Part 1 (IEC 60068-1, seventh edition, 7 October 2013) gives the general rules: standard atmospheric conditions for measurements and tests, recovery conditions, the climatic sequence for components, and an informative Annex C on environmental test tailoring. The part 2 family (the "-2-x" documents) defines the individual tests, each identified by a test letter: A cold, B dry heat, Cab damp heat steady state, Db damp heat cyclic, N change of temperature, Fc sinusoidal vibration, Fh random vibration, Ea shock, Ec rough handling, Ka and Kb salt mist. The IEC also sells the current parts as a series pack, IEC 60068-2:2026 SER, dated 10 July 2026.

Each test is a method. Severity, duration and acceptance criteria are set by the "relevant specification" that calls the test: a product committee, a customer, or the manufacturer's own qualification plan. Most part 2 documents include a clause listing what that relevant specification has to state.

This is the crucial distinction for anyone coming from CE marking. The EMC Directive, the Low Voltage Directive and the RED set legal obligations, with presumption of conformity through harmonised standards. IEC 60068 does none of that. It becomes a requirement only when something else invokes it:

• a product or sector standard (railway rolling-stock electronics under EN 50155 are a frequent case, with shock and vibration covered by IEC 61373, whose third edition was published on 17 July 2026),
• a customer specification in a B2B contract,
• a sector scheme (automotive, defence, aerospace, industrial machinery).

So IEC 60068 sits in the qualification layer, not the regulatory layer. Passing it does not earn a CE mark, and a CE mark does not imply it was done.

Current editions, dated

Check the edition before you write a test plan or accept a report. Four of the most used climatic tests were revised in 2025, and two historical part numbers no longer exist.

Part	Test	Current edition	Published	What changed or what to know
IEC 60068-1	General and guidance	Edition 7.0	7 October 2013	Added informative Annex C, environmental test tailoring. IEC stability date 2027
IEC 60068-2-1	A: Cold	Edition 7.0 (2025)	23 September 2025	Replaces 2007. Tolerances revised, nomogram for high air velocity (tests Ad, Ae) reintroduced, advantages and disadvantages of each procedure added
IEC 60068-2-2	B: Dry heat	Edition 6.0 (2025)	23 September 2025	Replaces 2007. Same set of changes as 2-1 (tests Bd, Be)
IEC 60068-2-78	Cab: Damp heat, steady state	Edition 3.0 (2025)	6 August 2025	Replaces 2012. Severities revised with dew-point temperatures, tolerances changed to limits, preconditioning procedure specified
IEC 60068-2-30	Db: Damp heat, cyclic (12 h + 12 h)	Edition 4.0 (2025)	7 August 2025	Replaces 2005. Chamber requirements, tolerances changed to limits, conditioning limits and intermediate measurements revised
IEC 60068-2-14	N: Change of temperature	Edition 7.0 (2023)	27 July 2023	Replaces 2009. Specimen temperatures, severities and tolerances updated, test report requirements for Na and Nb revised
IEC 60068-2-6	Fc: Vibration, sinusoidal	Edition 7.0 (2007)	13 December 2007	Stability date 2029
IEC 60068-2-64	Fh: Vibration, broadband random	Edition 2.0 (2008) + Amendment 1	29 April 2008, AMD1 9 October 2019	The 2026 series pack still lists 2008+AMD1:2019 as current
IEC 60068-2-27	Ea: Shock	Edition 4.0 (2008)	27 February 2008	Absorbed the bump test (repetitive shocks)
IEC 60068-2-29	Eb: Bump	Withdrawn	Withdrawn 27 February 2008	Merged into IEC 60068-2-27:2008
IEC 60068-2-31	Ec: Rough handling shocks	Edition 2.0 (2008)	21 May 2008	Absorbed the free-fall test, IEC 60068-2-32 (test Ed), withdrawn the same day
IEC 60068-2-11	Ka: Salt mist	Edition 4.0 (2021)	3 March 2021	Replaces 1981. Solution preparation changed, Annex B method to evaluate how corrosive the test apparatus is added
IEC 60068-2-52	Kb: Salt mist, cyclic	Edition 3.0 (2017)	7 November 2017	Harmonised with ISO 9227 as far as possible, severities replaced by test methods, methods 7 and 8 added

Source: the IEC online catalogue record of each publication (see the sources list), read on 7 October 2026.

What each test leaves you to specify

The test letters hide several procedures each. A specification that says only "IEC 60068-2-1, -40" is incomplete; the laboratory still has to pick a procedure. The table below lists the procedures named in the current editions.

Test	Procedures or variants in the current edition	What the relevant specification must choose
2-1 Cold (A)	Ab: non-heat-dissipating specimens (operating or not). Ad: heat-dissipating, energised after initial temperature stabilisation. Ae: heat-dissipating, energised throughout	Procedure, low conditioning temperature from the preferred values (Table 1), exposure time (Table 2), packed or unpacked, measurements
2-2 Dry heat (B)	Bb, Bd, Be, mirroring Ab, Ad, Ae	Same choices with the high conditioning temperature
2-78 Damp heat, steady state (Cab)	Methods I to IV (Figures 2 to 5 of the 2025 edition)	Temperature and relative humidity from the preferred values (Table 1), duration, intermediate measurements
2-30 Damp heat, cyclic (Db)	Variant 1 and Variant 2, identical except for the cooling period, where Variant 2 allows wider humidity limits and temperature change rate	Upper temperature and number of cycles (these set the severity), variant, recovery
2-14 Change of temperature (N)	Na: rapid change, with a transfer time t2 (two-chamber method) or a one-chamber method. Nb: specified rate of change. Nc: two-fluid-bath method	Test, low and high temperatures, exposure time t1, transfer time or ramp rate, number of cycles
2-6 Sinusoidal vibration (Fc)	Vibration response investigation, endurance by sweeping, endurance at fixed frequencies	Frequency range f1 to f2, amplitude, endurance type and duration, axes
2-64 Random vibration (Fh)	Initial and final vibration response investigation, low-level equalisation, random test	Frequency range, RMS acceleration, shape of the acceleration spectral density, duration. Annex A gives standardised spectra for transportation, stationary installation, wheeled vehicles, and aeroplanes and helicopters
2-27 Shock (Ea)	Half-sine, final-peak saw-tooth or trapezoidal pulse, non-repetitive or repetitive	Pulse shape, peak acceleration and duration from Table 1, number of shocks, directions
2-31 Rough handling (Ec)	Drop and topple (5.1), free fall procedure 1 (5.2), repeated free fall procedure 2 in a tumbling barrel (5.3)	Procedure, fall height (Table 1 relates fall height to mass), number of falls, faces or corners
2-11 Salt mist (Ka)	Continuous salt mist	Duration, specimen preparation, post-test evaluation
2-52 Salt mist, cyclic (Kb)	Test methods 1 to 8	Method number, recovery, evaluation

Cold and dry heat

IEC 60068-2-1 (cold) and IEC 60068-2-2 (dry heat) apply to energised and non-energised specimens that normally reach temperature stability during the test, packed (to simulate transport and storage) or unpacked (to simulate use). Both state that they do not test the effect of temperature changes, which is the job of 2-14.

The split between Ab/Bb and Ad, Ae/Bd, Be is about self-heating. A heat-dissipating specimen in a chamber with high air velocity runs cooler than it would in still air, so the 2025 editions reintroduced a nomogram (normative Annex B) to correct the conditioning temperature when testing a heat-dissipating specimen with high air velocity. Whatever the procedure, instrument the hot spots: the chamber set-point does not tell you the component temperature.

Damp heat: steady state versus cyclic

IEC 60068-2-78 investigates the effect of high humidity at constant temperature without condensation over a specified period, and applies to both heat-dissipating and non-heat-dissipating specimens. The 2025 edition revised the severities and added the dew-point temperature for each, so quote the severity from the edition you call up rather than from an older test report.

IEC 60068-2-30 runs one or more 12 h + 12 h temperature cycles at high humidity and, in general, produces condensation on the specimen surface. The conditioning temperature and the number of cycles set its severity. Two points from the 2025 scope matter in practice: the test can also be used to validate packaging for transport and storage, and it applies to specimens energised throughout the test only in exceptional cases. The 2025 edition also notes that small, low-mass specimens may not condense under this procedure and points to the composite temperature and humidity test, IEC 60068-2-38 (Z/AD), as an alternative.

Change of temperature

IEC 60068-2-14 carries three tests, divided by how the change is specified. Test Na, rapid change of temperature (clause 7), is run either with two chambers, the specimen being transferred between a hot and a cold chamber within a transfer time t2 (clause 5.6 covers the choice of t2), or with one chamber whose conditioned air is switched over a stationary specimen. Test Nb (clause 8) is defined by a rate of temperature change, with exemplary tolerances in normative Annex C. Test Nc (clause 9) is the two-fluid-bath method. Clause 5.7 sets the applicability limits of the three tests. Thermal cycling is a classic driver of solder-joint fatigue, which is why the number of cycles should be tied to the product's lifetime count of significant temperature excursions.

Vibration: sinusoidal versus random

IEC 60068-2-6 (test Fc) applies a sinusoidal excitation, one frequency at a time. It starts with a vibration response investigation to find resonances, then applies endurance either by sweeping across the frequency range or at fixed frequencies. It suits environments dominated by rotating sources and is the standard tool for finding resonances.

IEC 60068-2-64 (test Fh) applies broadband random vibration, defined by a frequency range, an RMS acceleration and the shape of the acceleration spectral density (ASD) curve. Its scope names transport and operational environments such as aircraft, space vehicles and land vehicles. The RMS value summarises the energy; the ASD shape decides which resonances get hit. Where the real environment mixes random and deterministic content, the standard warns that pure random testing may not be sufficient.

Aspect	Sinusoidal (60068-2-6, Fc)	Random (60068-2-64, Fh)
Excitation	One frequency at a time	All frequencies in the band at once
Defined by	Frequency range f1 to f2 and amplitude	Frequency range, RMS acceleration, ASD shape
Endurance	By sweeping or at fixed frequencies	Test duration
Ready-made severities	Annex B (components) and Annex C (equipment), informative examples	Annex A standardised spectra by application category
Best for	Resonance search, rotating machinery	Transport, vehicles, broadband sources

Mechanical shock, including the former bump test

IEC 60068-2-27 (test Ea) covers both non-repetitive and repetitive shocks. The repetitive case used to be a separate bump test, IEC 60068-2-29, which was merged into the 2008 edition of 2-27 and withdrawn on 27 February 2008. The pulse is a half-sine, a final-peak saw-tooth or a trapezoid, with severities in Table 1 and guidance on choosing pulse shapes in Annex A. The specimen is always mounted on the fixture or table of the shock machine. A test specification that still calls "IEC 60068-2-29" should be rewritten as a repetitive-shock severity under 2-27.

Rough handling: drop, topple and free fall

IEC 60068-2-31 is test Ec, rough handling shocks, primarily for equipment-type specimens: the knocks, jolts and falls received during repair work or rough handling in use. It carries three procedures. Drop and topple (clause 5.1) tilts the product about a bottom edge and lets it fall back, or pushes it over onto an adjacent face. Free fall, procedure 1 (clause 5.2), drops it onto a hard surface, with Table 1 relating fall height to mass. Repeated free fall, procedure 2 (clause 5.3), tumbles it in a rotating barrel (Annex A). The scope excludes loose-cargo transport impacts (test Ee, bounce) and shocks to installed equipment (test Ea). The older free-fall standard, IEC 60068-2-32 (test Ed), was withdrawn on 21 May 2008 and folded into this edition.

Salt mist

IEC 60068-2-11 (test Ka) assesses the corrosion resistance of products, components and materials in a salt mist, and is described by the standard as particularly useful for detecting pores and other discontinuities in metallic, organic, anodic oxide and conversion coatings. Its 2021 edition added an Annex B method to evaluate how corrosive the test apparatus is, a direct answer to chamber-to-chamber variability. IEC 60068-2-52 (test Kb) is the cyclic version for components and equipment designed to withstand a salt-laden atmosphere, with eight test methods since 2017. An accredited laboratory (COFRAC in France) makes salt-mist results easier to defend.

Environments the IEC series also covers

Three IEC parts are often forgotten when teams compare IEC 60068 with MIL-STD-810: test M, low air pressure (IEC 60068-2-13:2021, for specimens that can see low pressure in transport, storage or service), test L, dust and sand (IEC 60068-2-68:1994), and test Fg, acoustically induced vibration (IEC 60068-2-65:2013).

From environmental class to test: IEC 60721

The severity should come from the environment, and the IEC has a standard way of describing environments: the IEC 60721-3 classifications. Each part covers a use condition (for example IEC 60721-3-3:2019 for stationary use at weather-protected locations, IEC 60721-3-4:2019 for stationary use at non-weather-protected locations) and groups the parameters into classes: climatic (K), special climatic (Z), biological (B), chemically active substances (C), mechanically active substances (S) and mechanical (M).

The 2019 editions replaced all the climate classes of the 1994 edition of IEC 60721-3-3 with completely new classes. IEC TS 60721-4-3:2023 then maps each class of IEC 60721-3-3:2019 to IEC 60068-2 test procedures and severities:

IEC 60721-3-3:2019 classes	Environment described	Treated in IEC TS 60721-4-3:2023
3K20	Fully air-conditioned enclosed locations	Clause 5.1
3K21	Continuously temperature-controlled enclosed locations	Clause 5.2
3K22	Temperature-controlled enclosed locations	Clause 5.3
3K23	Enclosed locations having no temperature or humidity control	Clause 5.4
3K24	Enclosed locations having neither temperature nor humidity control	Clause 5.5
3Z12 to 3Z14	Special climatic conditions	Clause 6
3B1 to 3B3	Biological conditions	Clause 7
3M10 to 3M12	Mechanical conditions	Clause 8

For a product installed indoors, starting from the class and reading the corresponding test severities in IEC TS 60721-4-3 gives a traceable answer to the question every reviewer asks: "why this temperature, why this vibration level?".

Choosing severities from the use profile

The logic flows from the use profile to the test parameters:

1. Define the life-cycle environment. Where will the product live, ship, store and operate? A wall-mounted indoor sensor, a roadside cabinet, a vehicle ECU and a marine buoy face entirely different climates and vibration.
2. Map it to a class or measure it. Use the IEC 60721-3 classes where they fit, a sector document (ISO 16750 for road vehicles, IEC 61373 for rail) where one exists, and measured data where the environment is unusual.
3. Pick severities from the preferred values of each test: the preferred conditioning temperatures and exposure times of 2-1 and 2-2, the preferred temperature and humidity of 2-78, the severities of 2-27, the standardised spectra of 2-64 Annex A, the fall heights of 2-31 Table 1. Preferred values exist so that results are comparable between laboratories.
4. Set duration and cycle count from the lifetime dose. Vibration endurance relates to cumulative fatigue; thermal-cycle counts relate to lifetime excursions. Testing harder for less time has to be justified by a fatigue model, not assumed.
5. Define acceptance criteria before testing. Functional limits, allowed degradation, visual criteria, and the initial, intermediate and final measurements that each part 2 test asks the specification to define.

Qualification versus regulatory requirement

Aspect	Regulatory (CE, FCC)	Qualification (IEC 60068)
Driver	Directives and law	Customer, product standard, internal specification
Outcome	Market access, CE mark	Confidence the design survives its field life
Mandatory?	Yes, to sell legally	Only when invoked by a specification or contract
Who sets criteria	Harmonised standards, regulators	The relevant specification
Consequence of skipping	Illegal placement, recall	Field failures, warranty cost

A product can be fully CE-marked and still be environmentally fragile, and a robust product is not automatically compliant. The two activities run in parallel.

Relationship with ISO 16750, MIL-STD-810H and HALT

Automotive: ISO 16750

For road-vehicle electronics, ISO 16750-3 (mechanical loads) and ISO 16750-4 (climatic loads), both in their fourth editions of 2023, describe the stresses expected at each mounting location and specify tests and requirements for them. They call IEC 60068-2 methods to execute many of those tests. The layering is: ISO 16750 supplies the automotive profiles and severities, IEC 60068-2 supplies the procedure. This sits alongside the ISO 26262 automotive functional safety guide and the AEC-Q100/Q101 semiconductor qualification guide.

Defence: MIL-STD-810H

MIL-STD-810 is active at revision H, dated 31 January 2019, with Change 1 dated 18 May 2022 (DLA ASSIST record). Part One describes the tailoring process built on a life cycle environmental profile; Part Two holds the laboratory test methods. The foreword is explicit: with the exception of Method 528, the methods "are not to be called out in blanket fashion, nor applied as unalterable routines, but are to be selected and tailored". The table maps the main 810H methods to their nearest IEC 60068-2 counterpart.

MIL-STD-810H method	Nearest IEC 60068-2 test
500 Low pressure (altitude)	2-13, test M: low air pressure
501 High temperature	2-2, test B: dry heat
502 Low temperature	2-1, test A: cold
503 Temperature shock	2-14, test N (Na)
507 Humidity	2-30, test Db, and 2-78, test Cab
509 Salt fog	2-11, test Ka, and 2-52, test Kb
510 Sand and dust	2-68, test L
514 Vibration	2-6, test Fc, and 2-64, test Fh
515 Acoustic noise	2-65, test Fg
516 Shock	2-27, test Ea, and 2-31, test Ec
519 Gunfire shock, 522 Ballistic shock	No counterpart among the IEC parts on this page

"Nearest" does not mean equivalent: the parameters, tolerances and procedures differ, and a result under one cannot be relabelled as the other. The military-vehicle power environment is treated in the MIL-STD-1275 military vehicle power guide.

Reliability: HALT and HASS

HALT (Highly Accelerated Life Test) deliberately steps temperature and vibration beyond the specification until the product fails, to find design margins and weak links early. HASS (Highly Accelerated Stress Screen) uses those limits to screen production units. The contrast with IEC 60068 is fundamental:

• IEC 60068 asks "does it withstand the specified environment?" (qualification).
• HALT asks "where does it break, and how much margin is there?" (margin discovery).

A sound development flow uses HALT early to harden the design, then IEC 60068 (or ISO 16750, or MIL-STD-810H) to qualify against the contractual environment. Claiming a HALT result as a 60068 qualification, or the reverse, is a category error. For products in the charging ecosystem, the mechanical and thermal robustness of connectors and cables is part of the picture in the EV charging IEC 61851 / ISO 15118 / OCPP guide.

Claims the texts contradict

Common claim	What the text says
"Bump is tested to IEC 60068-2-29." (this page said so until October 2026)	IEC 60068-2-27:2008 merged 2-29 into the shock test, which covers repetitive shocks. IEC 60068-2-29 was withdrawn on 27 February 2008.
"Cold, dry heat and damp heat are IEC 60068-2-1:2007, 2-2:2007, 2-30:2005 and 2-78:2012."	All four were replaced in 2025: 2-1 and 2-2 on 23 September 2025, 2-78 on 6 August 2025, 2-30 on 7 August 2025.
"Steady-state damp heat is typically +40 °C / 93 % RH." (this page gave that figure)	The 2025 edition of 2-78 revised its severity table and added dew-point temperatures. Take the severity from the edition you call up.
"Cyclic damp heat is run with the product powered and monitored."	IEC 60068-2-30:2025 applies to specimens energised throughout the test only in exceptional cases.
"IEC 60068 uses fixed grids, only MIL-STD-810 is tailoring-based." (this page said so)	IEC 60068-1:2013 has an informative Annex C on environmental test tailoring, and every part 2 test leaves severities to the relevant specification.
"IEC 60068 does not cover altitude, sand and dust or acoustic noise." (this page said so)	Test M, low air pressure (2-13:2021), test L, dust and sand (2-68:1994), and test Fg, acoustically induced vibration (2-65:2013). Gunfire shock (810H Method 519) has no counterpart among the parts on this page.
"Our product is MIL-STD-810 compliant."	MIL-STD-810H says its methods, except Method 528, are not to be called out in blanket fashion; a claim means something only with the methods, procedures and tailored levels listed.
"Rail electronics are shaken to IEC 60068-2-64 under EN 50155." (this page implied it)	Rail shock and vibration testing uses IEC 61373, published in a third edition on 17 July 2026.
"Indoor equipment: IEC 60721-3-3 class 3K3."	The 2019 edition of IEC 60721-3-3 replaced all its climate classes with new ones (3K20 to 3K24). A class quoted from the 1994 edition no longer exists in the current text.
"IEC 60068-2-14 thermal shock means two chambers."	Test Na also has a one-chamber method, Nb is defined by a rate of change, and Nc is a two-fluid-bath method.

Common pitfalls

• Assuming the directives cover it. EMC and electrical safety directives say nothing about vibration, drop or corrosion. Plan environmental testing as a separate work package from the start.
• Citing withdrawn or superseded parts. 2-29 and 2-32 are gone; 2-1, 2-2, 2-30 and 2-78 have 2025 editions. Name the edition in the test plan.
• Leaving the procedure open. "IEC 60068-2-1" alone does not say Ab, Ad or Ae; "IEC 60068-2-31" alone does not say drop and topple, free fall or tumbling barrel.
• Testing a single sample and calling it qualified. Define how many units and whether the test is destructive.
• Ignoring self-heating in temperature tests. The chamber set-point is not the component temperature.
• Choosing sinusoidal where random is realistic. Use random vibration unless the environment is dominated by a discrete tone.
• No pre-agreed acceptance criteria. Without functional limits and measurements set before the test, the result is a negotiation.
• Confusing qualification with reliability. Passing 60068 is not an MTBF.
• Skipping accredited laboratories. An accredited ISO/IEC 17025 laboratory makes results defensible, especially for salt mist.

A practical sequencing note

Environmental tests interact, and the order matters. IEC 60068-1 gives a climatic sequence for components (clause 6) and, in its informative Annex B, a general sequence of tests (Table B.2) and the principal effects of single environmental parameters (Table B.3). A common approach runs climatic tests first, then mechanical, then drop, with functional verification between stages so that a failure can be traced to a specific stress. Salt mist is often run on dedicated samples. IEC 61373:2026 likewise clarifies the order of testing for rail equipment.

Above all, write the environmental test plan early, alongside the EMC and safety plan, with each severity traced back to a class or a measured profile and the acceptance criteria agreed with the customer.

See also

• IP and IK ratings: ingress protection explained
• Conformity assessment bodies and accreditation
• MIL-STD-461 and MIL-STD-464: defence EMC

Working on an environmental and mechanical qualification plan (IEC 60068, ISO 16750, MIL-STD-810) for a real product? AESTECHNO can audit your design and certification plan. Get in touch

Sources & references

1. IEC 60068-1:2013, environmental testing, part 1: general and guidance (edition 7.0, 7 October 2013), International Electrotechnical Commission webstore.iec.ch/publication/501
2. IEC 60068-2:2026 SER, environmental testing, part 2: tests, all parts (list of current parts, 10 July 2026), International Electrotechnical Commission webstore.iec.ch/en/publication/62437
3. IEC 60068-2-1:2025, test A: cold (edition 7.0, 23 September 2025), International Electrotechnical Commission webstore.iec.ch/en/publication/82354
4. IEC 60068-2-2:2025, test B: dry heat (edition 6.0, 23 September 2025), International Electrotechnical Commission webstore.iec.ch/en/publication/82355
5. IEC 60068-2-78:2025, test Cab: damp heat, steady state (edition 3.0, 6 August 2025), International Electrotechnical Commission webstore.iec.ch/en/publication/82357
6. IEC 60068-2-30:2025, test Db: damp heat, cyclic (12 h + 12 h cycle) (edition 4.0, 7 August 2025), International Electrotechnical Commission webstore.iec.ch/en/publication/82356
7. IEC 60068-2-14:2023, test N: change of temperature (edition 7.0, 27 July 2023), International Electrotechnical Commission webstore.iec.ch/en/publication/71503
8. IEC 60068-2-6:2007, test Fc: vibration (sinusoidal) (edition 7.0), International Electrotechnical Commission webstore.iec.ch/en/publication/544
9. IEC 60068-2-64:2008, test Fh: vibration, broadband random and guidance (edition 2.0), International Electrotechnical Commission webstore.iec.ch/en/publication/547
10. IEC 60068-2-64:2008/AMD1:2019, amendment 1 (9 October 2019), International Electrotechnical Commission webstore.iec.ch/en/publication/32501
11. IEC 60068-2-27:2008, test Ea and guidance: shock (edition 4.0, 27 February 2008), International Electrotechnical Commission webstore.iec.ch/en/publication/514
12. IEC 60068-2-29:1987, test Eb: bump (withdrawn 27 February 2008), International Electrotechnical Commission webstore.iec.ch/en/publication/12717
13. IEC 60068-2-31:2008, test Ec: rough handling shocks (edition 2.0, 21 May 2008), International Electrotechnical Commission webstore.iec.ch/publication/516
14. IEC 60068-2-32:1975+AMD2:1990, test Ed: free fall (withdrawn 21 May 2008), International Electrotechnical Commission webstore.iec.ch/en/publication/12731
15. IEC 60068-2-11:2021, test Ka: salt mist (edition 4.0, 3 March 2021), International Electrotechnical Commission webstore.iec.ch/en/publication/64484
16. IEC 60068-2-52:2017, test Kb: salt mist, cyclic (sodium chloride solution) (edition 3.0), International Electrotechnical Commission webstore.iec.ch/en/publication/30839
17. IEC 60068-2-13:2021, test M: low air pressure (edition 5.0), International Electrotechnical Commission webstore.iec.ch/en/publication/64534
18. IEC 60068-2-65:2013, test Fg: vibration, acoustically induced method (edition 2.0), International Electrotechnical Commission webstore.iec.ch/en/publication/548
19. IEC 60068-2-68:1994, test L: dust and sand, International Electrotechnical Commission webstore.iec.ch/en/publication/551
20. IEC 60721-3-3:2019, classification of environmental conditions, stationary use at weather-protected locations, International Electrotechnical Commission webstore.iec.ch/en/publication/32620
21. IEC 60721-3-4:2019, classification of environmental conditions, stationary use at non-weather-protected locations, International Electrotechnical Commission webstore.iec.ch/en/publication/61080
22. IEC TS 60721-4-3:2023, correlation of IEC 60721-3-3 classes to IEC 60068 tests, International Electrotechnical Commission webstore.iec.ch/en/publication/79974
23. IEC 61373:2026, railway applications, rolling stock equipment, shock and vibration tests (edition 3.0, 17 July 2026), International Electrotechnical Commission webstore.iec.ch/en/publication/68999
24. MIL-STD-810 document record: revision H (31 January 2019) and revision H Change 1 (18 May 2022), U.S. Department of Defense, DLA ASSIST quicksearch.dla.mil/qsDocDetails.aspx?ident_number=35978
25. MIL-STD-810H, environmental engineering considerations and laboratory tests (full text mirror, secondary host), EverySpec (mirror of the U.S. Department of Defense document) everyspec.com/MIL-STD/MIL-STD-0800-0899/MIL-STD-810H_55998/
26. ISO 16750-3:2023, road vehicles, environmental conditions and testing for electrical and electronic equipment, part 3: mechanical loads, International Organization for Standardization www.iso.org/standard/77579.html
27. ISO 16750-4:2023, road vehicles, environmental conditions and testing for electrical and electronic equipment, part 4: climatic loads, International Organization for Standardization www.iso.org/standard/77580.html