Certification of the mass fractions of crude protein, crude oils and fats, crude fibre, crude ash and phosphorus and of copper, calcium and magnesium, BCR-708, BCR-709
This report describes the preparation, homogeneity and stability studies, and the certification of nutrients analysed in the official control of nutrients in feeding stuffs. The following analytes have been studied: Crude protein (N�6.25), Crude oils and fats, Crude fibre, Crude ash, Copper, Calcium, Phosphorus and Magnesium. For the analyses comprising the �proximate analysis scheme�, Crude protein, Crude oils and fats, Crude fibre and Crude ash, the studies aimed to method specific certification, according to the specifications laid down in EU-Directives. The elements on the other hand were analysed by different methods in order to produce an un-biased estimate of their respective mass fraction in the materials. Two materials have been prepared, one is a synthetic feed for dairy cows (BCR-708) and one is a synthetic feed for growing pigs (BCR-709). The certified values and their associated uncertainties are given in the tables below. Expanded uncertainties (coverage factor k=2) were expressed according to the Guide for the Expression of Uncertainties in Measurement (GUM ).
Bibliographic Reference: EUR 21070 EN (2004), 44 pp. Free of charge
Availability: Available from European Commission, JRC Knowledge Management Unit, Ispra (IT) Tel: +39 033278 9893 Fax: +39 033278 5409 E-mail: firstname.lastname@example.org or Bruxelles (BE) Tel: +32 2 295 76 24 Fax: +32 2 299 63 22
ISBN: ISBN: 92-894-7204-9
Record Number: 200417589 / Last updated on: 2006-04-06
Original language: en
Available languages: en