NBN T 03-021-1979
Sulphuric acid and oleum for industrial use - Determination of oxides of nitrogen - 2,4-Xylenol spectrophotometric method

Standard No.

NBN T 03-021-1979

Release Date

1979

Published By

BE-NBN

Latest

NBN T 03-021-1979

Scope

The method is applicable to the determination of nitrogen oxide contents, expressed in axote (N), equal to or greater than 0.000 02% (mlm).

NBN T 03-021-1979 history

• 1979 NBN T 03-021-1979 Sulphuric acid and oleum for industrial use - Determination of oxides of nitrogen - 2,4-Xylenol spectrophotometric method