Technical Guides
Answers to frequently asked technical questions
Which standard, which level, which regulation? These guides address the questions asked at the moment of decision and link to the relevant test pages.
Corrosion~10 minWhat is the difference between ASTM B117 and ISO 9227?
Both standards describe the salt spray chamber, but their scopes and reporting expectations are not the same. Which one is required is determined by the specification.
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Environmental~11 minHow is a MIL-STD-810 test profile selected?
MIL-STD-810 is not a list of tests but a method: which method is applied at which level is derived from the product's life cycle profile.
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CE~11 minWhich legislation applies in CE marking?
CE is not a single certificate; it is the declaration that all EU legislation applying to the product has been met together. First determine which legislation you fall under.
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Automotive~10 minUNECE R10 Automotive EMC Requirements
R10 governs the electromagnetic compatibility of vehicles and sub-assemblies. For electric vehicles, behaviour in charging mode is also within scope.
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Medical~11 minISO 10993 Biocompatibility Test Matrix
ISO 10993 is not a list of tests but an evaluation process. Which endpoint is required is determined by the type and duration of contact.
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Protection class~9 minHow is the IP protection class (IEC 60529) read?
The difference between IP67 and IP65 is not an order of superiority but the result of two separate tests. Knowing the anatomy of the code prevents a mistaken expectation in the specification from the outset.
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Sample quantity and shipping conditions are collected in a separate guide.
Sample requirements