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349 results:
181. Successful testing of platinum-iridium sorption artefacts for precision mass determinations under vacuum conditions  
Date: 27.07.2010
Percental score: 4 %
The influence of sorption effects on the accuracy of mass determinations under vacuum conditions was significantly reduced by means of sorption artefacts made of a platinum-iridium alloy. The  
182. Broadband measuring station for the extended testing of the directional response pattern of sound level meters and the calibration of measuring microphones  
Date: 07.04.2010
Percental score: 4 %
It is common practice to use sinusoidal sound signals as an excitation signal to reach the low measurement uncertainties required for the testing of the directional response pattern of sound level  
183. The PTB at the Sinsheim Control from May 12 to 15, 1998  
Date: 05.05.1998
Percental score: 4 %
From May 12 to 15, 1998, at the Control at Sinsheim, more than 600 exhibitors will present for the 12th time recent develop-ments and trends in the field of quality assurance and production control.  
184. Hybrid metrology technology for nanostructured surfaces  
Date: 30.07.2018
Percental score: 4 %
The significant challenges posed by the increasing complexity of nanostructured surfaces used in technological applications include the characterization of such surfaces. The importance of complex  
185. Ultrasound noise measured directly on the person – a device developed by PTB can contribute to more accurate assessment of the airborne ultrasound exposure  
Date: 30.05.2022
Percental score: 4 %
A high-frequency personal sound exposure meter (High-Frequency and Ultrasound Personal Exposimeter - HiFUSPEx) newly developed in department 1.6 possesses the measuring capabilities of a “real” sound  
186. E Glasschmelzen  
Date: 07.09.2022
Percental score: 4 %
E Glasschmelzen Arbeitsgruppe 3.32 „Flüssigkeitseigenschaften“ ‒ Data sheet ‒ Calibration glasses for high temperature viscosity measurement Data for the soda lime glass G1: Temperature °C dynamic  
187. Price List of PTB starting 1 Ocotober 2021 v2  
Date: 05.07.2022
Percental score: 4 %
Price List of PTB starting 1 Ocotober 2021 v2 Physikalisch-Technische Bundesanstalt As of: 8 October 2021 Price List of the Physikalisch-Technische Bundesanstalt (valid starting on 1 October  
188. ESR/alanine dosimetry: response for ultrahard photon radiation  
Date: 09.08.2007
Percental score: 4 %
It was possible to determine with a standard measurement uncertainty of only 0.3% the relative response of the secondary standard measuring system based on the detection of radiation-induced free  
189. Dates  
Date: 29.06.2021
Percental score: 4 %
Joint Research Projekt: Crystalline and self-assembled structures as length standards (CRYSTAL) Training course: Dimensional Standards at Nanoscale 20 - 21 September 2016 PTB, DE  
190. PTB President Joachim Ullrich awarded Federal Cross of Merit, Class 1  
Date: 17.05.2017
Percental score: 5 %
He is a top-ranking scientist who unites people and leads them toward success.  This simple formula could be used to explain Professor Dr. Joachim Ullrich's extensive achievements.  The  
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