ISO 1897-3:1977
Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part 3 : Determination of neutral oils and pyridine bases
- Standard No.
- ISO 1897-3:1977
- Release Date
- 1977
- Published By
- International Organization for Standardization (ISO)
- Status
- 2002-05
- Latest
- ISO 1897-3:1977
- Scope
- Specifies a volumetric method, after distillation, for determining of neutral oils, and a titrimetric method, after distillation, for determining of pyridine bases. The principle is based on distillation from an aqueous alkaline solution of a test portion. Measurement of the volume of neutral oils collected. Titration of the bases present in the aqueous distillate and in the oils with standard volumetric hydrochloric acid solution using methyl orange and xylene cyanol FF as indicator. An assembled distillation apparatus is shown in a figure.
ISO 1897-3:1977 history
- 1977 ISO 1897-3:1977 Phenol, o-cresol, m-cresol, p-cresol, cresylic acid and xylenols for industrial use; Methods of test; Part 3 : Determination of neutral oils and pyridine bases
