Results 91 to 100 of about 372,353 (307)

COMAR - the international database for certified reference materials

open access: yesСтандартные образцы, 2017
КОМАР (COMAR) - международная база данных стандартных образцов. В статье представлены исторические факты, структура, содержание и ведение базы данных, в том числе вклад в информационную базу сведений о стандартных образцах российских изготовителей.
T. C. Steiger   +3 more
doaj  

TRENDS IN FIELD OF REFERENCE MATERIALS IN RUSSIA

open access: yesСтандартные образцы, 2017
Trends in development of reference materials (RMs) in Russia, in particular in the regulation and standardization, are described. As of December- 2015, Fifteen statutory and regulatory acts are valid in Russia in that field.
E. V. Osintseva, S. V. Medvedevskikh
doaj   +1 more source

Rapid determination of cadmium in grain by citric acid extraction

open access: yesLiang you shipin ke-ji, 2020
A new pretreatment method for the determination of cadmium in grain was developed: citric acid extraction method. The basic parameters affecting the citric acid extraction were optimized, and the best pretreatment conditions were obtained.
WU Yan-xiang   +5 more
doaj   +1 more source

CERTIFICATION REPORT: The certification of the absorbed energy (low energy) of Charpy V-notch reference test pieces for tests at 20 °C: ERM®-FA013bp [PDF]

open access: yes, 2018
This certification report describes the processing and characterisation of ERM®-FA013bp, a batch of Charpy V-notch certified reference test pieces certified for the absorbed energy (KV). Sets of five of these test pieces are used for the verification of
DEAN ALAN   +2 more
core   +6 more sources

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

open access: yesAdvanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

DEVELOPMENT OF THE PRODUCTION OF CALIBRATION GAS MIXTURES FBI "NIZHNIJ NOVGOROD CSM" FROM CERTIFIED GAS MIXTURES TO LARGE FORMAT CERTIFIED REFERENCE MATERIALS

open access: yesСтандартные образцы, 2017
The article describes the main stages of the development activities of the FBI "Nizhnij Novgorod FMC" in the production of reference materials of composition - calibration gas mixtures for the period from 1990 to the present.
R. A. Ignat'ev, F. B. Balashov
doaj  

Development of a certified reference material for the physical properties of the soil clay (loam)

open access: yesСтандартные образцы, 2019
Introduction. The article presents results of developing a certified reference material for the physical properties of the soil clay (loam). The certified characteristics of the reference material are as follows: moisture content at the liquid limit via ...
I. N. Matveeva, V. V. Tolmachev
doaj   +1 more source

Certified reference materials for particle size measurements [PDF]

open access: yes, 2016
This factsheets summarises the CRMs from JRC-IRMM concerning particle size measurementsJRC.D-Institute for Reference Materials and Measurements ...
LINSINGER Thomas
core  

Certification of Charpy V-Notch Reference Test Pieces of 30 J Nominal Absorbed Energy - Certified Reference Material ERM®-FA013bf [PDF]

open access: yes, 2010
This certification report describes the processing and characterisation of ERM®-FA013bf, a batch of Charpy V-notch certified reference test pieces. Sets of five of these test pieces are used for the verification of pendulum impact test machines according
LAMBERTY MARIE ANDREE   +2 more
core   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

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