ISO 3125:1976
Crude sodium borates for industrial use; Determination of aluminium soluble in alkaline medium; EDTA titrimetric method
- Standard No.
- ISO 3125:1976
- Release Date
- 1976
- Published By
- International Organization for Standardization (ISO)
- Status
- 2002-05
- Latest
- ISO 3125:1976
- Scope
- Applicable to products in which the content of soluble aluminium, expressed as Al2 O3 , exceeds 100 mg/kg. The preparation of the test solution is carried out according to ISO 2217. The reaction proceeds with the formation of the complex between EDTA and aluminium in an aliquot part of solution. Decomposition of the complex using sodium fluoride. Titration of the amount of liberated EDTA against a zinc chloride solution of known concentration in the presence of xylenol orange as indicator.
ISO 3125:1976 history
- 1976 ISO 3125:1976 Crude sodium borates for industrial use; Determination of aluminium soluble in alkaline medium; EDTA titrimetric method
