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This document provides for the application of impedance heating systems for pipes, vessels, and equipment. It provides recommendations for design, installation, maintenance, and repair of these systems in general industry for...

1.1 General This standard is divided into seven clauses. Clause 1 provides the scope and purpose. Clause 2 lists references to other standards that are useful in applying this standard. Clause 3 references definitions that...

These requirements cover the following elevator appliances intended for installation and operation on horizontal and vertically opening hoistway doors and gates and car doors and gates in accordance with the requirements of...