Disinfectant / Antimicrobial Contact (Dwell) Time Reference
Label-typical wet contact (dwell) time for common EPA-registered antimicrobial classes.
Example
You enter
- Product class quat
You get
- Typical wet contact time 10 min
Checked against published worked examples from: ANSI/IICRC S500 / S520 antimicrobial contact-time principle.
Details, formula, and sources
ScopeReturns the label-typical wet contact (dwell) time for common EPA-registered antimicrobial classes (quat, accelerated hydrogen peroxide, bleach solution, phenolic, botanical/thymol) and the keep-wet and pre-clean rules that decide whether a disinfection claim is actually achieved. Antimicrobials are EPA-registered pesticides whose label is the legal authority (FIFRA); the ranges are guidance and the product label governs the exact dwell (S500/S520 name the context).
Formula or tableReference lookup: product class -> label-typical wet contact (dwell) time range, keep-wet rule, pre-clean rule, and the FIFRA label authority. No numeric computation beyond the lookup.
Source and editionAntimicrobial contact-time principle, by name; ANSI/IICRC S500 and S520. Antimicrobials are EPA-registered pesticides whose label is the legal authority under FIFRA.
Free accessStates the contact time the label requires and the keep-wet / pre-clean rules that decide whether a disinfection claim is actually achieved.
What governsEstimate. AHJ and licensed professional govern.
API field namesproduct_class, typical_contact_min
- Label authority the EPA-registered product label is the legal authority (FIFRA); the ranges shown are guidanceEPA FIFRA / product label
- Keep-wet rule the surface must remain visibly wet for the full contact timeANSI/IICRC S500 / S520