CGSB 139.3 : M90
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
DETERMINATION OF CLEANLINESS OF PLUMAGE BY OXYGEN NUMBER
03-01-2012
01-12-2013
Gives the procedure for assessing cleanliness of plumage by the oxygen number, which reflects the oxidizable matter content.
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