UNE 77228:2002
Stationary source emissions. Determination of the mass concentration of nitrogen oxides. Naphthylethylenediamine photometric method.

Standard No.

UNE 77228:2002

Release Date

2002

Published By

AENOR

Latest

UNE 77228:2002

UNE 77228:2002 history

• 2002 UNE 77228:2002 Stationary source emissions. Determination of the mass concentration of nitrogen oxides. Naphthylethylenediamine photometric method.