AS 4024.2501:2017 pdf free download – Safety of machinery
5.1.3  Elements of risk assessment
When undertaking the elements of the risk assessment, the following parameters are presented as guidance to the range and type of factors that shall be considered for the machine and its associated equipment.
a) The intended use of the machine: Will the machine be used for one specific purpose only, for which the hazards are readily identifiable, or could the machine be used for a wide range of products in many industries (e.g. a pump)?
b) The product type to be processed by the machine: Will the product be already contaminated (e.g. a raw material) or will it be “preserved” or aseptic?
c) The degree of further processing: Will the product processed by the machinery subsequently undergo a further process which functions as a hazard elimination step (e.g. a heat treatment) or is the process for which the machine is intended the final process?
d) Specific application of the product:
1) Is the product to be used by the consumer immediately after processing or is there a product shelf-life in which the severity of the hazard could increase (e.g. relevant microbial growth)?
2) Will the product be used by a specific consumer group to whom the hazard may present a more serious risk (e.g. a baby, elderly or infirm person)?
e) The degree of cleaning, disinfection, pasteurization, sterilization and/or inspection: Is the machine to be cleaned, disinfected, pasteurized, sterilized and/or inspected after every use, routinely during the day, every day, or every week, etc.?
f) The use of the machine: Is the machine likely to be well maintained or used infrequently, is it designed for high or continuous use or is misuse foreseeable?
5.2.1.4  Non-metals
Elastomers (e.g. rubber and rubber-like materials) and other polymers (e.g. plastic materials) may be used in product contact applications and shall conform with the appropriate requirements for the application. Elastomers and other polymers having product contact surfaces shall be of such composition as to retain their surface and conformational characteristics when exposed to the conditions encountered in the environment of intended use and in cleaning, disinfection, pasteurization or sterilization. Adhesives and the bonds created by their use shall be compatible with the surfaces, products and cleaning/disinfectant materials in which they are in contact. All bonds shall be continuous and mechanically sound so that the adhesives do not separate from the base materials to which they are bonded. Where materials having certain inherent functional purposes are required for specific applications, product contact surfaces may be made of these materials (i.e. carbon, glass, ceramic materials). Product contact surfaces may be modified by surface treatment or coating(s).