Instructional sign to advise of unsafe drinking water, as indicated by the sign. Conforms with Health & Safety (Safety Signs and Signals) Regulations 1996 BS EN ISO 7010 :2012 to ensure maximum levels of understanding.
In 2011, ISO 7010 was adopted as a British Standard and replaced BS5499-5:2002 as the UK standard for safety signs. Please also see the ESPO framework solutions. www.espo.org, 344 for Signs