Equal parts of 30 volume + 40 volume developers= 35 Volume Developer.
3m (Vol is 3x3x3 = 27)
Volume of sphere = 4/3 πr^3r^3 = (3)(Vol)/4πr = cube root (3)(Vol)/4π = cube root 339.12/12,566 = 2.9995 (no units given for volume so no units in answer)
Vol = 2*1*3 cm3 = 6 cm3
Vol = Pi/4 x D2 x HorVol = Pi x r2 x HwhereD = diameterorr = radiusandH = height
Vol = 10 cm * 5 cm * 40 cm = 2,000 cm3
Yes. 10 vol developer is 25% peroxide.
30 vol is stronger
I would like to substitute 9 vol for 20 vol fit grey coverage
It depends on the volume of developer. 10 vol = 20 mins 20 vol = 30 mins 30 vol = 40 mins 40 vol = 45 min
10 volume is if you want to go dark with color but with bleach 10 vol gives you one level of lift but if it seems slow to you use 20 volume, never use 30 vol or 40 vol on scalp it will irritate it.
Yes, this will work, but I recommend using 20 volume developer instead of 30 volume and watch the hair closely.
mix 1 part of developer 30 with 0.5 part of water
you make equal parts if your using a 4 ounce formula with a 2oz color bottle you would use 1oz of 20 volume developer then 1oz water then 2ounces of color
I am talking about hair developer
Developer of any volume won't do much of anything by itself. It will need to be mixed with a lightener and yes, it will be suitable for your needs once it is mixed with a lifting agent.
particularly, yess. it depends on what hair dye it is for the vol. of the developer. but, MOST hair dyes, require 20-30 vol. happy hair dyinng.
20 vol