Section 355IAC2-1-1. Degree of fineness of unacidulated phosphate materials; registration and labeling  


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  •    Degree of Fineness of Unacidulated Phosphatic Materials. Rock phosphate, soft phosphate with colloidal clay, basic slag and other materials, the availability of which is related to particle size, shall be registered and labeled as to the percentage that will pass U. S. Standard Sieve Series Number 100 (100 mesh, dry sieve method). a. (State Chemist of the State of Indiana; Fertilizer Law Rule 1; filed Sep 14, 1953, 7:00 a.m.: Rules and Regs. 1954, p. 6; readopted filed Jun 20, 2001, 3:20 p.m.: 24 IR 3822; filed Aug 10, 2005, 1:00 p.m.: 28 IR 3570; readopted filed Apr 27, 2007, 2:03 p.m.: 20070509-IR-355070039RFA; readopted filed Nov 13, 2013, 10:42 a.m.: 20131211-IR-355130442RFA)