BS 5766-19:2000
Current
The latest, up-to-date edition.
Methods for analysis of animal feeding stuffs Determination of starch content. Polarimetric method
Hardcopy , PDF
English
15-04-2000
Important note : Users cannot be edited or removed once added to your Multi user PDF.Defines a procedure for the polarimetric determining of the starch content of animal feeding stuffs and raw materials for animal feeding stuffs. Does not apply to products, which, in addition to starch, contain optically active substances, and do not dissolve in 40% ethanol.
| Committee |
AW/10
|
| DevelopmentNote |
Also numbered as ISO 6493 Supersedes 97/715169 DC (08/2004)
|
| DocumentType |
Standard
|
| Pages |
18
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This International Standard specifies a method for the polarimetric determination of the starch content of animal feeding stuffs and raw materials for animal feeding stuffs.
The method is not applicable to products which, besides starch, contain other substances which are optically active during the analysis and do not dissolve in 40 % ethanol. Examples of these products are potato pulp, beet chips, beet leaves, beet tops, yeast, soya products, lupine and products rich in inulin (e.g. chicory roots and Jerusalem artichokes). In these cases an enzymatic determination of the starch content may be used.
This method is not applicable for the quantification of starch with an amylose content exceeding 40 % (e.g. high amylose maize starch like Hylon VII).
CAUTION – Depending on the intensity of the heat/moisture treatment the product has been subjected to, too low a starch content may be determined.
| ISO 5725-1:1994 | Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions |
| ISO 3310-1:2016 | Test sieves Technical requirements and testing Part 1: Test sieves of metal wire cloth |
| ISO 6497:2002 | Animal feeding stuffs Sampling |
| ISO 10520:1997 | Native starch — Determination of starch content — Ewers polarimetric method |
| ISO 5725-2:1994 | Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method |
| ISO 6498:2012 | Animal feeding stuffs — Guidelines for sample preparation |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
| DIN 10300-1:1971-05 | DETERMINATION OF CRUDE STARCH CONTENT, HYDROCHLORIC ACID METHOD |
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