Dosing drip . How many drops is a ml ???

[REEFconnection]

Mine 12 drops is 1 ml on the regular air tubing I use .. Anyone dose diffently?? I know not very accurate but ... It works for
Me .

 

[reefermad619]

20 drops/ml

 

[john08007]

I would assume that shouldn't change unless you change the density of the liquid being dosed. I would think if the liquid was denser then gravity would cause it to drip quicker giving less volume per drop and vise versa if the liquid was light then it could hang on longer before it dropped due to gravity.

 

[_shorty_]

or test it for your application. drop X drops into a small glass container and suck it up into a syringe to measue.

 

[disc1]

I would assume that shouldn't change unless you change the density of the liquid being dosed. I would think if the liquid was denser then gravity would cause it to drip quicker giving less volume per drop and vise versa if the liquid was light then it could hang on longer before it dropped due to gravity.

you're close. think viscosity and surface tension though and not density.

 

[Ontheway]

I would assume that shouldn't change unless you change the density of the liquid being dosed. I would think if the liquid was denser then gravity would cause it to drip quicker giving less volume per drop and vise versa if the liquid was light then it could hang on longer before it dropped due to gravity.

Viscosity is not the only one that plays a role around that drop. Internal (liquid side) and external (ambient) pressures also very important. Low air pressure may lower the surface tension, resulting a faster drop of drops..

 

[sleepydoc]

you're close. think viscosity and surface tension though and not density.

the configuration of the nozzle making the drop matters as well - think of a dropper for infant tylenol vs a micropipette

 

[Firedad]

Sleepydoc is right. Its the size of the tubing/nozzle. The doser is calibrated for the size of the tubing and speed the liquid is given. I am a paramedic and we use dosing on pt's. the tubing is also calibrated for that. The viscosity does not really matter.

 

[Firedad]

I also want to add that the concentration of the liquid matters. The more concentrated, the more drug/calcium etc per dropl. ml's are the same as cc's

 

[xnetgeek]

sounds like the best thing to do is see what your application actually does in that environment.. like Shorty suggests.

 

[FirstContact]

20 drops/ml

+1 20 drops = ml.