Examples of using Primary standards in English and their translations into German
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Primary standards for challenging elements.
AMCO-AEPA-1® microspheres are primary standards conform with USEPA method 180.1.
Such primary standards can be bought(from the NIST) or calibrated by the PTB.
We guarantee our products meet stated criteria and grades that include primary standards such as.
New primary standards and traceability for radiometry.
Our weights are used all over the world,not only for testing balances but also as primary standards in mass laboratories.
Primary standards for low gas flow rates enable the calibration of test leaks against vacuum and atmosphere.
Implementation of working standards including derivation of primary standards or official standards such as USP or Ph. Eur.
Our primary standards laboratory has the resources you need to meet the full traceability of your calibration.
In our IAEA/WHO SSDL,we provide dosimetric measurements and calibrations traceable to the German primary standards of the PTB in Braunschweig.
SIA directly exploits the primary standards formulated as IAPWS documents, it is more comprehensive but slower.
The fact that the facility can generate continuous radiationis important for the metrological comparison with the conventional testing facilities and the primary standards of PTB.
Primary Standards of Phytochem® are Quantitative Standards for the estimation of the absolute content and quality control.
Realization of the pressure scale in the vacuum regime with primary standards from 10-9 Pa to 1 kPa and its dissemination by calibration of vacuum gauges in the same range and up to 130 kPa.
Primary standards are not calibrated by comparison to another flow measurement standard, but are instead calibrated by only testing their measurement components individually time, distance, mass, pressure, or temperature for example.
According to the latest demands of the authorities, Phytochem®offers so called Premier® Standards. These are Primary Standards with a complete vadilation as a supplement to RMF.
Access to such primary standards on-site avoids the long delays sometimes incurred in obtaining calibration verification from national standards. .
Primary standards: These can be directly traced to volume(length), time, temperature and pressure readings, which are established and maintained by recognized standards bodies, such as the National Institute of Standards and Technology NIST.
RI(I)-K6, in which the primary standards of PTB and of the BIPM for the realization of the unit"absorbed dose to water" were compared in high-energy photon fields on accelerators.
Thus, these precise and reliable primary standards are suitable for the calibration of virtually all pressure measuring instruments, such as transmitters, pressure switches and calibrators with pressure ranges up to 2500bar.
At DFM we have established a primary standard that allows the calibration of particle counters, which are typically used in cleanroom environments.
The primary standard is ensured by the national metrology institute and is the standard with the smallest measurement uncertainty in the respective country.
Proof that BESSY, with suitable operating parameters,represents a radiation source with calculable radiant power radiometric primary standard as was previously only the case with the cavity radiator.
The sensitivity of a radiation detector at differentwavelengths is obtained by a comparison measurement(calibration) against a primary standard or a reference receiver which has already been calibrated.
Measuring two plane angles thus ensures thetraceability of the calibration of spatial angles to the national primary standard.
The procedure is based on the conventional substitution procedure in accordance with DIN EN61094-8, by means of which a controlled sound field is generated and successively measured by the primary standard and by the test piece.
At PTB's clinical linacs, k Q factors were determined experimentally for many types of ionization chambers which are frequently used in practice; this was done by determiningthe response of the ionization chambers in different photon radiation fields, using the primary standard for the unit of absorbed dose to water water calorimeter.
SSW thus serves as a primary standard for the measurand"conductance value ratio" or for the practical salinity calculated from it. In contrast to what is usual in conductivity measurements, here the measured conductance value is not adapted to the conductivity of a reference solution whose conductivity is measured traceable to the SI in a metrological institute by means of a primary procedure.
Hence it is essential inmetrology to guarantee traceability from any calibration level to the primary standard.
