Safety of toys - Experimental sets for chemistry and related activitiesBS EN 71 4: 1998 specifies requirements for the maximum amount of certain substances and preparations used in experimental sets for chemistry and related activities. The standard applies to chemistry sets and supplementary sets. It also covers toys for experiments within the fields of mineralogy, biology, physics, microscopics and environmental sciences whenever they contain one or more chemical substances and or preparations. It also specifies

such as acetylene

for the purposes of the specification

BS EN 10343 does not apply to bright steel products

plastic or wood and is designed to achieve multiple uses through rigorous operations and logistics systems

As a consequence

in certain cases

performance

location and referenced documents

Reference values for permissible sinusoidal body currents and contact voltages are given in Annex A of this standard

Installation matrix

buildings and/or building contents from the effects of smoke and heat in the event of fire

Sometimes a reasonably foreseeable approach to danger zones can occur while persons try to use a foot to clean out discharge and/or feed openings or operate pedestrian controlled machinery