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prEN 50377-12-1
Connector sets and interconnect components to be used in optical fibre communication systems - Product specifications - Part 12-1: Type SC-PC and SC-APC fan-out using IEC 60793-2 category B1.1 singlemode fibre
prEN 50377-14-1
Connector sets and interconnect components to be used in optical fibre communication systems - Product specifications -- Part 14-1: Patch cords with IEC 60793-2-50 singlemode category B1.1 and B1.3 fibre for category C
prEN 61935-3
Testing of balanced and coaxial information technology cabling - Part 3: Installed cabling as specified in EN 50173-4 and related standards (IEC 61935-3:2008, modified)
prEN 61937-3
Digital audio - Interface for non-linear PCM encoded audio bitstreams applying IEC 60958 - Part 3: Non-linear PCM bitstreams according to the AC-3 and enhanced AC-3 formats (IEC 61937-3:2007)
prEN IEC 61094-2
Electroacoustics - Measurement microphones - Part 2: Primary method for pressure calibration of laboratory standard microphones by the reciprocity technique
prEN ISO 148-2 rev
Metallic materials - Charpy pendulum impact test - Part 2: Verification of testing machines
prEN ISO 148-3 rev
Metallic materials - Charpy pendulum impact test - Part 3: Preparation and characterization of Charpy V-notch test pieces for indirect verification of pendulum impact machines
prEN ISO 2719 rev
Determination of flash point - Pensky-Martens closed cup method
prEN ISO 3210 rev
Anodizing of aluminium and its alloys - Assessment of quality of sealed anodic oxidation coatings by measurement of the loss of mass after immersion in acid solution(s)
prEN ISO 4935
Steel and iron - Determination of sulfur content - Infrared absorption method after combustion in an induction furnace