ISO 4221:1980

Air quality — Determination of mass concentration of sulphur dioxide in ambient air — Thorin spectrophotometric method

Applies to the range of 3,5 to 150 micrograms per cubic metre, assuming an air sample volume of 2 m3 and a sample solution volume of 50 ml. For higher concentrations, dilution of the sample may be necessary.

OEN:

ISO

Langue:

English

Code(s) de l'ICS:

13.040.20

Statut:

Publié

Date de Publication:

1980-10-31

Numéro Standard:

ISO 4221:1980