ISO 14244:2014 specifies a method for the determination of soluble proteins in potassium hydroxide solution in soya meals, rapeseed meals and sunflower pellets, which are then assayed using the Kjeldahl method as specified in ISO 5983-1 and ISO 5983-2.
Tämän julkaisun valmistelusta Suomessa vastaa SFS Suomen Standardit, puh. 09 149 9331.
Sisällysluettelo
Foreword
1 Scope
2 Normative references
3 Principle
4 Reagents
5 Apparatus
6 Sampling
7 Preparation of test sample
8 Procedure
9 Expression of results
10 Precision
10.1 Interlaboratory test
10.2 Repeatability
10.3 Reproducibility
11 Test report
Annex A Results of interlaboratory tests (informative)
ISO 5500:1986 Oilseed residues -- Sampling
ISO 5502:1992 Oilseed residues -- Preparation of test samples
ISO 565:1990 Test sieves -- Metal wire cloth, perforated metal plate and electroformed sheet -- Nominal sizes of openings
ISO 5500:1986 Oilseed residues -- Sampling
ISO 5502:1992 Oilseed residues -- Preparation of test samples
ISO 565:1990 Test sieves -- Metal wire cloth, perforated metal plate and electroformed sheet -- Nominal sizes of openings
ISO 5983-1:2005 Animal feeding stuffs -- Determination of nitrogen content and calculation of crude protein content -- Part 1: Kjeldahl method
ISO 5983-2:2009 Animal feeding stuffs -- Determination of nitrogen content and calculation of crude protein content -- Part 2: Block digestion and steam distillation method