Sorry - quite right, Ian. I was confusing the 2 formulae - a silly mistake.
A 'seniors' moment.:rolleyes: That .78ml would be hard to measure, but.
Murray

Quote Originally Posted by Ian Grant View Post
Somethings wrong with your maths Murray

2.3:2.3:23:23:1000 works out as 1:1:10:10:434.78

Ian