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<http://webisa.webdatacommons.org/295455061>	<http://www.w3.org/ns/prov#value>	"(5) If the concentration is 0.5 per cent or greater but not more than 1.0 per cent, all of the precautions set out in subsection (4) shall be taken and the electrical equipment, diesel engines, tools and other material used in the workplace shall be designed to function safely in a flammable gas atmosphere." .
<http://webisa.webdatacommons.org/prov/457871003>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/295455061> .
<http://webisa.webdatacommons.org/295455061>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<ontario.ca> .
<http://webisa.webdatacommons.org/prov/99140085>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/295455061> .