This document gives the results of inter-laboratory testing to compare the accuracy and convenience of the official EC method for porosity measurement (given in Annex B) with two non-standardized alternative methods (given in Annexes C and D) already used in some participating laboratories.All current amendments available at time of purchase are included with the purchase of this document.
BS PD CEN/TR 14539:2021
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Straight ammonium nitrate fertilizers. Comparative study on the determination of porosity (oil retention)
BSI Group , 06/15/2021
Pages: 22
