ASTM D75 is the ASTM that covers the sampling of aggregates.
75 and 112
Abbdcadcbaabbdcadcbaabbdcadcbaabddcadcba#41-70 i dont know :( sry71. A72. B73. D74. D75. A76. C77. B78. D79. C80. C81. A82. B83. D84. D85. A86. C87. B88. D89. C90. C91. A92. B93. D94. D95. A96. C97. B98. D99. C100. C
Not knowing which country you are in makes providing a tailored answer impossible. There are several distributors in Asia who ship world wide. Be aware there are two versions of this ic. The suffix letter after D75 is most important.