A 细菌总数≤10CFU/cm<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230316/11548501_0.gif"> B
细菌总数≤100CFU/cm<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230316/11548501_0_1.gif"> C
细菌总数≤200CFU/cm<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230316/11548501_0_2.gif"> D
细菌总数≤400CFU/cm<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230316/11548501_0_3.gif"> E
细菌总数≤500CFU/cm<img border="0" alt="" src="https://img.weimei168.com/uploads/upimg/20230316/11548501_0_4.gif">