When shower hardware ships to 136 countries, a single bad batch isn’t a local problem — it’s a worldwide one. That is why quality control at Zimmor isn’t a final gate; it’s built into incoming material, every production station and the release step. This page covers what we check, how, and the standards behind it.
The Three Gates of QC
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Incoming material check — spectrometer verification of brass/stainless grade before any cutting begins.
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In-process inspection — first-article approval plus patrol checks at each station so drift is caught early.
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Final inspection — salt-spray, load and assembly tests before goods are released and packed.
Salt Spray Testing
Corrosion is the #1 field failure in bathroom hardware. We validate finish durability with neutral salt-spray (NSS) testing per ASTM B117, with durations matched to the environment:
Certifications We Support
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CE for European compliance
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ANSI relevant standards for hardware
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Marine-grade 316 for coastal and pool environments
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ISO-certified quality management system
QC Specifications
*Durations reflect real ASTM B117 / ISO 9227 NSS benchmarks (304 ≈ 96–240 h; 316 marine ≈ 500–1000+ h). Verify required standard with Zimmor’s factory before publishing.
Frequently Asked Questions
What salt-spray standard do you meet?
We test to ASTM B117, with duration set by grade and environment (48 h for indoor, up to 500–1000+ h for 316 marine). Tell us your installation environment and we’ll match it.
What happens if parts fail inspection?
Failed lots are quarantined and reworked or scrapped — never mixed into good stock. You get the agreed quality or a corrected batch.
Can you provide test reports?
Yes. Material certificates and salt-spray reports are available on request to support your own compliance and customs needs.
Get Started
Need a QC checklist for your next order? Download it from our team.