ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
For the purposes of this document, the following terms and definitions apply.
1、aerosolized body fluids
body fluids which have been dispersed into air as very small liquid droplets
2、airborne exposure pathways
inhalation routes of exposure to the medical face mask wearer
Note 1 to entry: Inhalation routes of exposure do not include streams of blood or body fluid that may be expelled from a wound.
3、blood-borne pathogen
any infectious secreted or excreted bacterium, virus, or other disease-inducing microbe carried in blood or other body fluids
4、body fluid
any liquid produced (secreted or excreted) by the body
Note 1 to entry: For the purpose of this International Standard, body fluids include those liquids potentially infected with blood-borne pathogens, including, but not limited to, blood, semen, vaginal secretions, cerebrospinal fluid, synovial fluid and peritoneal fluid, amniotic fluid, saliva in dental procedures, and any body fluid that is visibly contaminated with blood, and all body fluids in situations where it is difficult or impossible to differentiate between body fluids.
5、body-fluid simulant
liquid which is used to act as a model for human body fluids
6、medical face mask
item of protective clothing designed to protect portions of the wearer's face, including at least the mucous membrane areas of the wearer's nose and mouth, from contact with blood and other body fluids during medical procedures
7、penetration
flow of particles or liquids through closures, porous materials, seams and holes or other imperfections in a protective clothing material
Note 1 to entry: In this International Standard, the penetration liquid is synthetic blood.
8、protective clothing
any material or combination of materials used in an item of clothing for the purpose of isolating parts of the body from contact with a potential hazard
Note 1 to entry: For the purpose of this International Standard, the potential hazard of contact with blood or other body fluids is simulated.
9、synthetic blood
mixture of amaranth dye, surfactant, thickening agent, inorganic salts and distilled water having a surface tension representative of blood and some other body fluids
Note 1 to entry: The synthetic blood in this test method does not simulate all of the characteristics of blood or body fluids. For example, this synthetic blood does not simulate polarity (wetting characteristics), coagulation, or content of cell matter.
