Transmission and Multiplexing (TM) - Generic requirements of transport functionality of equipment - Part 3-1: Synchronous Transport Module N (STM-N) regenerator and multiplex section layer functions (Endorsement of the English version EN 300417-3-1 V 1.2.1 (2001-10) as German Standard)
Edition 2002-06

Transmission and Multiplexing (TM) - Generic requirements of transport functionality of equipment - Part 3-2: Synchronous Transport Module N (STM-N) regenerator and multiplex section layer functions; implementation Conformance Statement (ICS) proforma specification (Endorsement of the English version EN 300417-3-2 V 1.1.4 (1999-05) as German Standard)
Edition 2000-06

Minimum Performance Standards for Text Telephone Signal Detector and Text Telephone Signal Regenerator
Edition 2001-09

Transmission and Multiplexing (TM) - Generic requirements of transport functionality of equipment - Part 3-1: Synchronous Transport Module-N (STM-N) regenerator and multiplex section layer functions
Edition 2002-01-01

Transmission and Multiplexing (TM) - Generic requirements of transport functionality of equipment - Part 3-2: Synchronous Transport Module-N (STM-N) regenerator and multiplex section layer functions - Implementation Conformance Statement (ICS) proforma specification
Edition 1999-08-01

Petroleum, petrochemical and natural gas industries - Shell-and-tube heat exchangers (ISO 16812:2019); English version EN ISO 16812:2019
Edition 2019-05

Software Distribution for TIA-889-A - TTY - Minimum Performance Specification (MPS)
Edition 2005-08

TTY/TDD Minimum Performance Specification
Edition 2012-03

Refractories for use in coke ovens - Fireclay bricks - Requirements and testing
Edition 1995-02