‘Personal Protective Equipment at Work Regulations 1992 (as amended): Guidance on Regulations (L 25) (Third Edition)’ (HSE):

‘personal protective equipment at work regulations 1992 (as amended): guidance on regulations (L 25)’ (published by the Health and Safety Executive): 

Click http://www.hse.gov.uk/pubns/priced/l25.pdf link to open resource.