ISO 5506:1988
Withdrawn
View Superseded by
Soya bean products — Determination of urease activity
Hardcopy , PDF
English, French
08-18-1988
04-09-2025
The method allows inadequate cookingof the products to be detected. It applies to products having a urease activity of less than 1 mg of nitrogen per gram of product as received. For more active products the mass of test may be reduced. The principle consists in mixing of a ground test portion with a buffered urea solution, after keeping the mixture for 30 min at 30 C, neutralization of the ammonia liberated, with an exess of hydrochloric acid solution, and back-titration with standard volumetric hydroxide solution.
| Committee |
ISO/TC 34/SC 2
|
| DevelopmentNote |
Also numbered as BS 4325-6(1989) (08/2005) DRAFT ISO/FDIS 5506 is also available for this standard. (03/2018)
|
| DocumentType |
Standard
|
| Pages |
2
|
| PublisherName |
International Organization for Standardization
|
| Status |
Withdrawn
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| SAC GB/T 8622 : 1988 | Identical |
| BS 4325-6:1980 | Identical |
| GOST ISO 5506 : 2013 | Identical |
| PN ISO 5506 : 2002 | Identical |
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