contact time

Touch duration measure

Contact time is how long a substance must remain in contact with a surface to be effective.

The term appears most often with disinfectants and cleaning products, which need adequate contact time to kill germs: The bleach solution requires ten minutes of contact time.

In water treatment, it refers to how long water stays exposed to a disinfecting agent.

Related

surface cleaner · hand sanitizer · sanitizer · disinfectant · absorption · skin · reaction · soak · rinse · chemical · penetration · seconds · minutes · application · effective · residue · wet · spray

Opposites
duration of interaction

contact timetime apart

Period of separation

absence · downtime · disconnection · isolation period · off-time

engagement quality

contact timenon-contact

Without physical touch

isolation period · disengagement · alone time · withdrawal · avoidance

active vs. passive presence

contact timedwell time

Duration spent somewhere

co-presence

Family

contact, time, contacts, contacted, contacting, contactable, times, timed, timing

Familiarity
Top 500,000
Profile
Used worldwide · Timeless · Rated G