C4.8 Auditing Standards
BS EN ISO 19011:2011 Guidelines for quality and/or environmental management systems auditing
This replaces 19011:2002. The first edition of BS EN ISO 19011 cancels and replaces BS EN 30011-1:1993, BS EN 30011-2:1993, BS EN 30011-3:1993; and BS EN ISO 14010:1996, BS EN ISO 14011:1996 and BS EN ISO 14012:1996.
BS EN ISO 14001:2015 Environmental management systems. Requirements with guidance for use
BS ISO 14004:2010 Environmental management systems. General guidelines on principles, systems and supporting techniques
This replaces 1404:1996.
BS EN ISO 9001:2015 Quality management systems. Requirements
BS EN ISO 9000:2005 Quality management systems. Fundamentals and vocabulary
BS OHSAS 18001:2007 Occupational health and safety management systems. Requirements
BS EN ISO/IEC 17021:2015 Conformity assessment. Requirements for bodies providing audit and certification of management systems
All the above are available from BSI:
https://www.bsigroup.com/en-GB/standards/