Biocompatibility evaluation of breathing gas pathways in healthcare applications-Tests for emissions of volatile organic compounds (VOCs)
医用呼吸气体通道的生物相容性评价
BS ISO 18562-3:2017 specifies tests for the emissions of volatile organic compounds (vocs) from the gas
pathways of a medical device, its parts or accessories, which are intended to provide respiratory
care or supply substances via the respiratory tract to a patient in all environments. The tests of this
document are intended to quantify emissions of vocs that are added to the respirable gas stream by the
materials of the gas pathway. This document establishes acceptance criteria for these tests.This document addresses potential contamination of the gas stream arising from the gas pathways,
which is then conducted to the patient.This document applies over the expected service life of the medical device in normal use and takes
into account the effects of any intended processing or reprocessing.This document does not address biological evaluation of the surfaces of gas pathways that are in direct
contact with the patient. The requirements for direct contact surfaces are found in the ISO 10993
series[1].Medical devices, parts or accessories containing gas pathways that are addressed by this document
include, but are not limited to, ventilators, anaesthesia workstations (including gas mixers), breathing
systems, oxygen conserving devices, oxygen concentrators, nebulizers, low-pressure hose assemblies,
humidifiers, heat and moisture exchangers, respiratory gas monitors, respiration monitors, masks,
mouth pieces, resuscitators, breathing tubes, breathing systems filters, Y-pieces and any breathing
accessories intended to be used with such devices. The enclosed chamber of an incubator, including
the mattress, and the inner surface of an oxygen hood are considered to be gas pathways and are also
addressed by this document.This document does not address contamination already present in the gas supplied from the gas sources
while medical devices are in normal use.EXAMPLE Contamination arriving at the medical device from gas sources such as medical gas pipeline
systems (including the non-return valves in the pipeline outlets), outlets of pressure regulators connected or
integral to a medical gas cylinder or room air taken into the medical device is not addressed by ISO 18562 series.This document is intended to be read in conjunction with ISO 18562-1.NOTE This document has been prepared to address the relevant essential principles of safety and
performance as indicated in Annex B.Cross References:ISO 7396-1:2016ISO 14971:2007ISO 16000-6:2011ISO 18562-1:2017ASTM D5466-01ISO 10993ISO 16142-1:2016IEC 60601-1All current amendments available at time of purchase are included with the purchase of this document.