This standard specifies the geometric accuracy and working accuracy of two-, three-, and four-sided woodworking planers. This standard applies to two-, three-, and four-sided woodworking planers for general purposes.
GB/T 13572-1992 history
2008GB/T 13572-2008 Woodworking machines.Planing machines for two-,three- or four-side dressing.Nomenclature and acceptance conditions
1992GB/T 13572-1992 Woodworking machines--planing machines for two,three or four-side dresing--Accuracy test