CSA Preface This is the fifth edition of CSA ISO 8836, Suction catheters for use in the respiratory tract , which is an adoption without modification of the identically titled ISO (International Organization for Standardization) Standard 8836 (fifth edition, 2019-12). It supersedes the previous edition published in 2015 as CAN/CSA-Z8836 (adopted ISO 8836:2014). CSA Group acknowledges that the adoption of this Standard was made possible, in part, by the financial support of the governments of Alberta, British Columbia, Manitoba, New Brunswick, Newfoundland and Labrador, Northwest Territories, Nova Scotia, Nunavut, Ontario, Prince Edward Island, Québec, Saskatchewan, and Yukon, as administered by the Canadian Agency for Drugs and Technologies in Health (CADTH). This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group. Scope This document specifies dimensions and requirements for both open and closed suction catheters made of flexible materials and intended for use in suctioning of the respiratory tract. Suction catheters intended for use with flammable anaesthetic gases or agents, lasers or electrosurgical equipment are not covered by this document. NOTE For guidance on airway management during laser surgery of the upper airway, see ISO/TR 11991[4].