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This specification covers the requirements for the proximity and limit of fiber-optic position switches. This specification does not include switches that transfer an optical signal from one path to another by an external force or energy applied to the switch. The fiber-optic switches meet physical property requirements stipulated for enclosure, optoelectronic module, external configuration, and size and weight. The switches shall also adhere to minimum specified service life requiements. Other critical performance requirements shall be specified in the acquisition order as deemed important to the purchaser.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
1.1 This specification covers the requirements for fiber-optic position switches (proximity and limit). This specification does not include switches that transfer an optical signal from one path to another by an external force or energy applied to the switch.
1.2 The values stated in SI units are to regarded as the standard. The values given in parentheses are for information only. Where information is to be specified, it shall be stated in SI units.
1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
1.4 Special requirements for naval shipboard applications are included in the Supplement.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D3951 Practice for Commercial Packaging
ISO StandardsISO9001 Quality System--Model for Quality Assurance in Design/Development, Production, Installation, and Servicing Available from International Organization for Standardization (ISO), 1 rue de Varemb, Case postale 56, CH-1211, Geneva 20, Switzerland.
ICS Number Code 33.180.20 (Fibre optic interconnecting devices)