Chapter:	400D	Title:	NOISE CONTROL (HAND HELD PERCUSSIVE BREAKERS) REGULATIONS	Gazette Number:
Regulation:	2	Heading:	Interpretation	Version Date:	30/06/1997

In these regulations, unless the context otherwise requires-
"hand held percussive breaker" (手提撞擊式破碎機) means any portable breaker or pick that-

(a) has a mass above 10 kg; (80 of 1997 s.102)
(b) is designed for percussive operation while held by hand without any other form of support; and
(c) is driven by electrical, chemical or thermal energy or by energy transmitted by compressed air, steam or hydraulic means;