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R. <br /> U.S.STANDARD SIEVE NUMBERS <br /> 100 - IGO 70.50 40 30 20 16 2 a 6 <br /> 7 <br /> + <br /> I L I I p I I I I 1-k I <br /> go <br /> -1 1 1 v <br /> -4- <br /> 80 Ti 11 1 111 ' <br /> It I I <br /> + it <br /> --L-,J, <br /> 70 <br /> tuul <br /> J-j It <br /> z 60 + <br /> LLI <br /> Q 7 <br /> CL 50 <br /> LII <br /> it -T- <br /> 2 i L <br /> 40 --F-r <br /> -4-+11 i <br /> r I I I I I I ..... <br /> I + <br /> -T <br /> 30 <br /> L <br /> I.' I,.all <br /> -1 lit P I <br /> I <br /> 20 . <br /> +4— <br /> r I I I III it <br /> 10 P.-1-4 1 It <br /> 0 1 t <br /> 0 10 20 30 40 so 60 70 8' <br /> 90, 100 Ito 120 130 IN, <br /> 0.5 1.0 1.5 2.02.5 3.0 mm, <br /> SLOT OPENING AND GRAIN SIZE IN THOUSANDTHS OFAN INCH AND MM. <br /> Am'eIZkr.AN MRAm5rir Mi-A ComFAp4y <br /> SIEVE ANALYSIS <br /> LAPIS #lc SAND PACK <br /> FIGURE #3 <br />