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Z432-04 (R2014)
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Product Details
Scope
1.1 General
This Standard applies to the protection of persons from the hazards arising from the use of mobile or stationary machinery. It provides the criteria to be observed and the description, selection, and application of guards and safety devices. Where a current CSA Standard exists for a specific type of machinery (e.g., CAN/CSA-B167, CAN/CSA-B354.2, CAN/CSA-M424.1, Z142, Z248, and CAN/CSA-Z434), it is to be used in conjunction with this Standard to provide the most effective protection to the particular situation.
1.2 Exclusions
This Standard does not apply to portable hand tools.
1.3 Purpose
This Standard is intended for those who design, build, modify, install, use, operate, or maintain machinery, machinery guarding, or safety devices. It is also intended to be used by those concerned with information, instruction, and training in safe working practices.
1.4 Interaction with other standards
Machinery safeguarding is not performed in isolation from other protective measures. Typically, industrial machinery is installed in workplaces where other associated activities take place (e.g., movement of materials, cables, pipes, and hoses supplying power, gases, and liquids, and workers on foot and operating vehicles). Other machinery and work environment standards applicable to any place where this Standard is being implemented should therefore be reviewed.
1.5 Terminology
In CSA Standards, shall is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; should is used to express a recommendation or that which is advised but not required; and may is used to express an option or that which is permissible within the limits of the standard.
Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material.
Notes to tables and figures are considered part of the table or figure and may be written as requirements. Legends to equations and figures are considered requirements. 1.6 Measurements The values given in SI (metric) units are the standard. The values given in parentheses are for information only.
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