Singapore legislation
Regulation 21
of Workplace Safety and Health (Explosive Powered Tools) Regulations 2009
Regulation 21
Limitation on use of charges
Subregulation 1
It shall be the duty of any person who loads a charge in a tool to ensure that the charge is not any charge that he knows, or ought reasonably to know from testing, to be —
(a)
in excess of that necessary for the purpose for which the tool is to be used; or
(b)
of such strength as will cause the whole of the projectile to pass through the substance on which the tool is to be used.
Subregulation 2
Paragraph (1)(b) shall not apply where the substance is backed by a material that is capable of absorbing the energy of the projectile fully.