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Standard 1971, Edition 3

Standard for Signaling Devices for the Hearing Impaired

UL CSDS Proposal
Standard 1971, Edition 3 Edition Date: June 01, 2018
Summary of Topics b1971_3_20180601_sum.html

Subject 1971

Bulletin Dated: June 1, 2018

SUMMARY OF TOPICS

The following changes in requirements to the Standard for Signaling Devices for the Hearing Impaired, UL 1971, are being proposed:

1. Revision to the Signal Strength and Format Test to Address LED Strobes

Back to Standard 1971, Edition 3

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