contact time


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contact time

A term of art referring to the length of time water is exposed to a disinfectant—e.g., chlorine contact time.
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The contact time is one of the critical parameters effecting bio sorption and metal ion capacity.
Contact lens solutions containing polyhexamethylene biguanid as the active agent are found to have excellent antimicrobial activity and a desirable contact time.
A graph was plotted for the remaining COD in the waste water between the different adsorbent dosage and contact time for Cashew Nut Shell adsorbent as shown in Fig 4.
Sorption efficiency arithmetical mean was calculated after different contact time with zeolite samples, to evaluate which contact time is most effective on sorption efficiency.
This efficiency can be enhanced by increasing contact time as in Zhang et al.
Silvicide can also be used as high level instrument disinfectant and sterilant but requires 20% solution for 1 hour contact time or 5% solution for 2 hours contact time for its sporicidal action.
The initial pH of the solution had the greatest effect on removal (%), followed by adsorbent dosage, adsorbent dosage-initial pH interaction, contact time, contact time-initial pH interaction, contact time-adsorbent dosage interaction and contact time-adsorbent dosage-initial pH.
PCB assemblies with high thermal mass challenges--design elements like thick copper planes, bulky components or poor thermal relief on ground ties--need extended preheat cycles to warm them to soldering temperature and extended wave contact times to let solder wick up the holes.
The product moistures decreased with either an increase in contact time or a decrease in media factor (i.
Factors such as the food types, contact time and temperature are all important parameters and the behaviour of chemicals under the appropriate scenario needs to be understood.
They go from 9am to 4pm of teacher contact time five days a week to much less contact time, producing the odd piece of work every month or so with minimal feedback and then exams.
Certain color formulations meet the requirements of USP Class VI and the FDA-modified ISO 10993, Part 1 “Biological Evaluation of Medical Devices” tests with human tissue contact time of 30 days or less.