其粒度标记有：F4, F5, F6, F7, F8, F10, F12, F14, F16, F20, F22, F24, F30, F36, F40, F46, F54, F60, F70, F80, F90, F100, F120, F150, F180和F220.主要用于普通树脂磨具、陶瓷磨具。
　伊川县东风磨料磨具有限公司致力于棕刚玉磨料生产２０余年，加工的普通Ｆ砂质量严于国际标准（参照下面图表）。可根据客户要求进行风洗，水洗，酸洗，巴马克，棒磨，球磨，中高温煅烧等，并可根据客户进行铁桶、纸桶、纸箱、塑编袋、纸袋等包装。固结磨具用磨料粗粒粒度组成（企业内控标准）
粒度标记最粗粒粗粒基本粒混合粒细粒筛孔尺寸筛上物筛孔尺寸筛上物筛孔尺寸筛上物筛孔尺寸筛上物筛孔尺寸筛下物um%um%um%um%um%F4800005600104750434750 40007333502.0F5670004750104000434000 33507328002.0F6560004000103350433350 28007323602.0F7475003350102800432800 23607320002.0F8400002800102360482360 20007317002.0F10335002360102000482000 17007314002.0F12280002000101700481700 14007311802.0F14236001700101400481400 11807310002.0F16200001400101180481180 1000738502.0F20170001180101000481000 850737102.0F221400010001085048850 710736002.0F24118008501571048710 600685002.0F30100007101560048600 500684252.0F3685006001550048500 425683552.0F4071005002042543425 355683002.0F4660004252035543355 300682502.0F5450003552030043300 250682122.0F6042503002025043250 212681802.0F7035502501521243212 180681502.0F8030002121518043180 150681252.0F9025001801015043150 125681062.0F10021201501012543125 10668752.0F12018001251010643106 9068632.0F15015001068754375 6368452.0F180125090875 634375 63 4568//F220106075863 534363 53 4563//