An acid-exposure tablet requirement must distinguish accidental contact from repeated or continuous exposure. The phrase “acid-proof coating” is too broad to establish suitability for a particular process.
Give the reviewer a defined use case
| Requirement | Information to supply |
|---|---|
| Substance | Exact product or acid identity and concentration |
| Contact pattern | Accidental splash, repeated contact or continuous exposure |
| Conditions | Temperature, duration and parts of the assembly involved |
| Required result | Functional and cosmetic acceptance limits |
| Workplace constraints | Approved handling process and any separate hazardous-area requirements |
The public IEC 60068-2-74 scope concerns accidental fluid contact and excludes proving suitability for continuous fluid contact. A report under that method should therefore not be relabelled as blanket acid-proof evidence. Its specified fluid and exposure conditions still need review.
Use evidence to make the purchase decision
Ask whether a supplied result covers the exact assembled tablet and intended contact. If it covers only a coating sample or a different substance, record the gap and request a qualified evaluation plan. Do not run an improvised acid test on a work unit or invent a dilution and exposure time to fill the gap.
Chemical compatibility, suitability for a particular work process and any hazardous-area approval are separate questions. Have the responsible workplace specialists review the required approvals before specifying equipment for that area.
The current T1 listing does not verify an acid-resistant coating, a named-acid test result or hazardous-area approval. No acid exposure test has been performed for this article.
Use the exposure-brief checklist to organize the enquiry, then send Phonemax the substance and contact requirements for a documented feasibility discussion.
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