Ships and marine technology. Navigation and ship operations. Guidelines for onboard telephone equipment Ingestion-build-47182 This British Standard supersedes DD

This British Standard supersedes DD 191:1990 which is withdrawn

the following information should be given:

Music studios

cold-rolled products

Wording and Annex ZA have been adapted to the CPR

Ships and marine technology. Navigation and ship operations. Guidelines for onboard telephone equipment Ingestion-build-47182 This British Standard supersedes DDWhat is ISO 21792 Guidelines for onboard telephone equipment about? ISO 21792 provides general and specific recommendations related to the quality of communication, connectivity, installation, performance and maintenance of onboard telephone equipment, including automatic telephones, common battery telephones, battery less telephones and sound powered telephones. It also specifies requirements for the related performance tests (shop tests and onsite