Applies to devices other than slings for attaching loads to hoists. Because of the diversity of types of below-the-hook lifters, they are arranged in four groups as follows: Group 1 Structural and Mechanical Lifting Devices, Group II Vacuum Lifting Devices, Group III - Magnets, Close Proximity Operated, Group IV - Magnets, Remote Operated.
Số hiệu tiêu chuẩn
ANSI/ASME B 30.20
Tên tiêu chuẩn
Below-the-Hook Lifting Devices
Ngày phát hành
1999-00-00
Tiêu chuẩn tương đương
ASME B30.20 (1999), IDT
Từ khóa
Electromagnets * Forceps * Grab cranes * Grabs * Inspection * Lifting appliances * Lifting devices * Magnets * Maintenance * Safety * Testing * Vacuum lifters * Pincers * Nippers * Tongs * Pliers