AS NZS 2243.4:2018 pdf free

AS NZS 2243.4:2018 pdf free.Safety in laboratories
A person who has acquired through training, qualification and experience, or a combination of these, the knowledge and skills that enable the person to safely and effectively perform the task required.
A prospective- and source-related value of individual dose (dose constraint) or of individual risk (risk constraint) that is used in planned exposure situations as a parameter for the optimization of protection and safety for the source, and that serves as a boundary in defining the range of options in optimization.
NOTE: The dose constraint for each particular source is intended, among other things, to ensure that the sum of doses from planned operations for all sources under control remains within the dose limit.
A defined area in which specific protection measures and safety provisions are, or could be,required for controlling normal exposures or preventing the spread of contamination during normal working conditions, and preventing or limiting the extent of potential exposures.
An effect, such as partial loss of function of an organ or tissue, caused by radiation and which generally occurs only above some threshold of dose, the severity of the effect depending upon the magnitude of the dose received.
NOTE: Examples are non-malignant damage to the skin (radiation burns), cataract formation in the lens of the eye, and damage to blood vessels and connective tissue elements which are common to most organs in the body.
The process of determining whether a practice (or intervention) is, overall, beneficial, as required by the ICRP’s System of Radiological Protection, i.e. whether the benefits to individuals and to society from introducing or continuing the practice outweigh the harm (including radiation detriment) resulting from the practice.
The process of determining what level of protection and safety makes exposures, and the probability and magnitude of potential exposures, as low as reasonably achievable under the prevailing circumstances, with economic and social factors being taken into account, as required by the ICRP’s System of Radiological Protection.AS NZS 2243.4 pdf free download.