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immediate downloadReleased: 1980-11-01
ISO 4221:1980
ISO 4221:1980 - Air quality — Determination of mass concentration of sulphur dioxide in ambient air — Thorin spectrophotometric method
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English PDF
Immediate download
Printable
89.39 USD
English Hardcopy
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89.39 USD
French PDF
Immediate download
Printable
89.39 USD
French Hardcopy
In stock
89.39 USD
| Standard´s number: | ISO 4221:1980 |
| Edition: | 1 |
| Released: | 1980-11-01 |
| Pages (English): | 7 |
| Pages (French): | 7 |
DESCRIPTION
ISO 4221:1980
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.