Division II.9.1

United Kingdom

Calculation of percentage masses of clean, dry fibre, disregarding loss of fibre mass during pre-treatment:

P_{1} % = \frac{{100 m}_{1}}{m_{1} + m_{2}} = \frac{100}{1 + \frac{m_{2}}{m_{1}}}

P₁%

is the percentage of the first clean, dry component,

m₁

is the clean, dry mass of the first component,

m₂

is the clean, dry mass of the second component.