Infoteenus
07 LOODUS- JA RAKENDUSTEADUSED
Uued standardid
ISO/TR 23652:2024
Nanotechnologies — Considerations for radioisotope labelling methods of nanomaterials for performance evaluation
Käsitlusala:
This document provides:
a) a review of radioisotope labelling methods that can be used for nanomaterials;
b) the advantages and disadvantages of each radioisotope labelling method;
c) information on the selection of a matched pair of nanomaterial and radioisotope labelling method to ensure the in vivo integrity of radioisotope-labelled nanomaterials or the stability of their performance.
a) a review of radioisotope labelling methods that can be used for nanomaterials;
b) the advantages and disadvantages of each radioisotope labelling method;
c) information on the selection of a matched pair of nanomaterial and radioisotope labelling method to ensure the in vivo integrity of radioisotope-labelled nanomaterials or the stability of their performance.
Alusdokumendid:
Asendatud standardid
Kavandid
prEN 18097
Hydrometry - Measurement of precipitation intensity - Metrological requirements and test methods for non-catching type rain gauges
Käsitlusala:
This document considers atmospheric precipitation and defines the procedures and equipment to perform laboratory and field tests, in steady-state conditions, for the calibration, check and metrological confirmation of non-catching precipitation measurement instruments.
It provides a classification of non-catching measurement instruments based on their laboratory performance. The classification does not relate to the physical principle used for the measurement, nor does it refer to the technical characteristics of the instrument assembly but is solely based on the instrument calibration.
Attribution of a given class to an instrument is not intended as a high/low ranking of its quality but rather as a quantitative standardized method to declare the achievable measurement accuracy to provide guidance on the suitability for a particular purpose, while meeting the user’s requirements.
It provides a classification of non-catching measurement instruments based on their laboratory performance. The classification does not relate to the physical principle used for the measurement, nor does it refer to the technical characteristics of the instrument assembly but is solely based on the instrument calibration.
Attribution of a given class to an instrument is not intended as a high/low ranking of its quality but rather as a quantitative standardized method to declare the achievable measurement accuracy to provide guidance on the suitability for a particular purpose, while meeting the user’s requirements.
Alusdokumendid:
prEN 18097