The analysis of fertilizers. Part 5 : method for the determination of potassium. - Shah Alam, Selangor : Institut Standard dan Penyelidikan Perindustrian Malaysia, [1994] - iv, 2 p. : ill. ; 29 cm. - Malaysian standard ; MS 417 : Part 5 : 1994 . First Revision ISBN: RM 10.00 Subjects--Topical Terms: FertilizersPotassium fertilizers