BS PD ISO/TS 19837:2018 specifies principles for the design, selection and application of trapped key interlocking
devices and systems for machinery applications, independent of the type of energy used to control them
or that they control.The requirements of this document apply to the safety related aspects of trapped key interlocking
devices and systems. ISO 14119 always applies unless an exception is given in this document.This document is intended to be used in conjunction with ISO 14119.This document does not provide testing requirements.Cross References:ISO 14119:2013 ED2IEC 60947-1:2007ISO 13849-2ISO 13849-1ISO 12100:2010 Ed 1GS-ET-31GS-ET-19IEC 62061GS-ET-15IEC 60947-5-1IEC 60068-2-75IEC 60204-1All current amendments available at time of purchase are included with the purchase of this document.