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This report describes the preparation of a Hay Powder reference material, the homogeneity and stability studies and the analytical work for the certification of the contents of certain elements. The report contains all details of the results and the methods used to certify the contents, expressed on a dry matter basis, of Ca (6.40 mg/g), K (33.8 mg/g), Mg (1.45 mg/g), P (2.36 mg/g), S (3.16 mg/g), N (37.2 mg/g) and Kjeldahl-N (34.2 mg/g), together with I (0.167 microg/g) and Zn (32.1 microg/g).

Additional information

Authors: GRIEPINK B, CEC, Bruxelles (BE)
Bibliographic Reference: EUR 12473 EN (1989) FS, 59 pp., ECU 10
Availability: (2)
ISBN: ISBN 92-826-0955-3; CD-NA
Record Number: 198911243 / Last updated on: 1994-12-01
Original language: en
Available languages: en
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