Home / Standards / GB/T 39546-2020 GB/T 39546-2020 Active Equipment for crop protection—Knapsack motorized air-assisted sprayers—Test methods and performance limits 植物保护机械 背负式风送喷雾机 试验方法和性能限值 Standard Type GBT ICS 65.060.40 CCS B91 Status 现行 Issue Date 2020-12-14 Implementation 2021-07-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A