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sklademVydáno: 1976
ISO 904:1976
ISO 904:1976-Hydrochloric acid for industrial use — Determination of total acidity — Titrimetric method
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| Označení normy: | ISO 904:1976 |
| Počet stran: | 2 |
| Vydání: | 1 |
| Vydáno: | 1976 |
DESCRIPTION
ISO 904:1976
The principle consists in titration of a test portion with a standard volumetric solution of sodium hydroxide in presence of bromcresol green as indicator. Replaces ISO Recommendation R 904-1968.