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in stockReleased: 2002-01-22
UNE 77228:2002
Stationary source emissions. Determination of the mass concentration of nitrogen oxides. Naphthylethylenediamine photometric method.
Emisiones de fuentes estacionarias. Determinación de la concentración másica de óxidos de nitrógeno. Método fotométrico de la naftilendiamina (NEDA).
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| Standard number: | UNE 77228:2002 |
| Pages: | 20 |
| Released: | 2002-01-22 |
DESCRIPTION
This standard UNE 77228:2002 Stationary source emissions. Determination of the mass concentration of nitrogen oxides. Naphthylethylenediamine photometric method. is classified in these ICS categories:
- 13.040.40