Translate the given Spanish text to English

The quantity of the resulting dye to be applied is between 0.1 ml and 20 ml.
La cantidad del colorante resultante a aplicar se sitúa entre los 0,1 ml y los20 ml.

Said length is not required outside the nose, however said dead space is necessary to locate the probe, thereby being essential.
Con un segmento de 80 cm en su porcion proximal que se desenrosca al final del procedimiento y que se desecha.

4).

4).