GB/T 26548.12-2021
Hand-held portable power tools—Test methods for evaluation of vibration emission—Part 12：Die grinders (English Version)

Scope: This document specifies the test method for the hand-transmitted vibration measurement of the handle part of the mold grinder, and determines the type inspection procedure for the vibration magnitude of the grip part of the handle when the machine is operated under typical test conditions. The measured results are used to compare the vibration of different types of machines of the same type. This document applies to hand-held machines driven by compressed air or other means for trimming operations on different materials such as hard steel/plastics by means of alloy files or grinding heads mounted on chucks; it is also applicable to the use of grinding wheels Or a low-speed die grinder with a barrel wheel. Note 1: This document does not apply to straight-shank grinders equipped with Type 1 flat grinding wheels, Type 4 single-bevel grinding wheels, or different types of cylindrical dies with shanks. Such machines are specified in GB/T 26548.4. Note 2: This document does not apply to die grinders using wire brushes. Note 3: In order to avoid confusion between "power tool" and "insertion tool", "machine" is used throughout this document instead of "power tool".

GB/T 26548.12-2021 Referenced Document

EN 12096 Mechanical vibration - Declaration and verification of vibration emission values
ISO 15637-1 Holding fixtures of cylindrical abrasive sleeves - Part 1: Holding fixtures with shank for hand held grinding machines
ISO 17066 Hydraulic tools - Vocabulary
ISO 20643:2005 Mechanical vibration - Hand-held and hand-guided machinery - Principles for evaluation of vibration emission
ISO 2421 Coated abrasives - Cylindrical sleeves
ISO 2787 Rotary and percussive pneumatic tools; performance tests
ISO 5391 Pneumatic tools and machines - Vocabulary

2021 GB/T 26548.12-2021 Hand-held portable power tools—Test methods for evaluation of vibration emission—Part 12：Die grinders