ISO 5547:1978 PDF
Caseins — Determination of free acidity (Reference method)
Caseins — Determination of free acidity (Reference method)
- Document status:
- Withdrawn
- Format:
- Electronic (PDF)
- Number of pages:
- 2
- Publication date:
- June 1, 1978
- Edition:
- ISO IS 5547 edition 1 version 1
- ICS:
- 67.100.99
Covers both caseins obtained by acid precipitation or lactic fermentation and rennet caseins. The principle of determination is based on the aqueous extraction of a test portion at 60 degrees centigrade, filtration and titration of the filtrate with a standard volumetric sodium hydroxide solution using phenophthalein as indicator.
Technical details
- Technical committee
- ISO/TC 34/SC 5 - Milk and milk products
- SKU
- ISO 5547:1978


