ISO 2768 for formed parts: scope, limits and what to ask for
ISO 2768-1 fills in the tolerances you left off a drawing. What class m allows on a formed part, why it is wrong in both directions, and what to call out instead.
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Topic hub · 30 guides
Standards and compliance
Standards are only useful when you know their scope. ISO 2768 does not cover welded assemblies; ISO 13920 does. IEC 62208 covers an empty enclosure, IEC 61439 covers the assembly inside it. This cluster explains what each standard covers, where it stops, and the document a buyer should expect at first article and at audit.
Guides in this topic
Which standard applies, what it actually covers, and the evidence a buyer should ask for: ISO, IEC, EN, RDSO and material certification.
ISO 3834 welding quality requirements: scope, limits, evidence
ISO 3834 welding quality requirements: what parts 2, 3 and 4 control, the evidence to request per clause, and the limits the certificate does not cover.
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EN 81-50 for lift component testing: scope and limits
EN 81-50 proves a safety gear, buffer or governor on its own, not the bracket that holds it. Here are the test numbers and the interface the standard leaves.
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ISO 13920 for welded assemblies: scope, classes and limits
ISO 13920 class B allows ±6 mm on a 2,000 mm welded frame. What the classes cover, where the standard stops, and how to specify an interface that must hold ±0.5 mm.
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Gauge R&R for sheet metal measurement systems: scope and limits
How a gauge R&R study separates part variation from measurement variation, why the denominator decides the result, and how to run one that survives review.
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ISO 4624 for pull-off adhesion: scope, limits and what to ask for
ISO 4624 pull-off adhesion explained: dolly size, the force-to-stress arithmetic, fracture location, where the method stops, and the acceptance numbers to write on a drawing.
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GD&T for sheet metal: scope, limits and what to ask for
Geometric tolerancing in plain terms: what ISO 1101 defines, the limits a laser-cut and bent part can hold, and the four fields to put on the drawing.
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RoHS restricted substances: scope, limits and evidence
RoHS restricted substances for sheet metal buyers: the ten limits, why a coating is judged on its own mass, and the evidence worth asking for.
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IEC 62208 for empty enclosures: scope, limits and what to ask for
IEC 62208 empty enclosures explained: what the standard certifies, how IP and IK are verified, and the assembly ratings it deliberately leaves to IEC 61439.
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