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National Institute of Standards and Technology

National Institute of Standards and Technology
Related:  North American Market Product Compliance

LES ELEMENTS CHIMIQUES - Accueil Pour commencer... Ce site rassemble les informations relatives aux 103 premiers éléments chimiques ainsi qu'à leur classification périodique, classification proposée par Dimitri I. Mendeleïev en 1869. Ce site est subdivisé en quatre sections distinctes Toutes les propriétés sont regroupées dans 6 catégories Généralités : les informations générales, les informations liées à leur découverte... Configuration requise Ce site propose un certains nombre d’illustrations, de tableaux et d’éléments multimédia interactifs s’appuyant sur les dernières technologies web disponibles. Bonne visite La classification périodique Voici la classification périodique des éléments chimiques sous sa forme classique, elle rassemble les informations fondamentales telles que le nom, le symbole, la masse et la configuration électronique de chaque élément dans leur état fondamental.

Codes vs System Standards vs Product Standards Physical Reference Data Elemental Data Index Provides access to the holdings of NIST Physical Measurement Laboratory online data organized by element. Periodic Table: Atomic Properties of the Elements Contains NIST critically-evaluated data on atomic properties of the elements. Contains values of the fundamental physical constants and a related bibliographic database. Contains databases for energy levels, wavelengths, and transition probabilities for atoms and ions and related bibliographic databases. Includes databases containing spectroscopic data for small molecules, hydrocarbons, and interstellar molecules. Contains databases on thermophysical properties of gases, electron-impact cross sections (of atoms & molecules), potential energy surfaces of group II dimers, and atomic weights and isotopic compositions. Contains databases on the interaction of x-rays and gamma-rays with elements and compounds. This database calculates stopping-power and range tables for electrons, protons, or helium ions.

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TermSciences - Terminologie Scientifique Codes and Standards and AHJs--Oh, My! | Professional Practice content from Fire Protection Engineering If one walks into a local diner and asks for directions to the nearest post office, they will get lots of suggestions. Many will be different, and some may even be incorrect. Which path should they choose? This is an analogy that applies well to fire protection. Who or what is an AHJ? With respect to codes and standards, in many jurisdictions it all starts with a law. Building codes and fire codes both require certain features of fire prevention and fire protection. Although building codes and fire codes might require certain fire protection systems such as fire barriers and fire doors, automatic sprinklers or fire detection and alarm systems, they typically do not list the specific application, design, installation, location and performance requirements. Standards contain requirements concerning the application, design, installation and location of the fire protection systems or features required by the codes. These three codes and standards are dependant upon each other.

Computer Glossary, Computer Terms - Technology Definitions and Cheat Sheets from - The Tech Dictionary and IT Encyclopedia Navigant Research Office québécois de la langue française - Page d'accueil Directives and laws in America - Pilz - DE USAThe legal basis in the USA can be seen as a mix of product standards, fire codes (NFPA), electrical codes (NEC) and national laws. Local government bodies have the authority to monitor that these codes are being enforced and implemented. People in the USA are mainly familiar with two types of standards: OSHA (Occupational Safety and Health Administration) and ANSI (American National Standards Institute). OSHA standards are published by the US federal government and compliance is mandatory. The OSHA standards can be compared to a certain extent with the European directives, One main difference is that the OSHA is more concerned in describing technical properties rather than abstract requirements. If an accident occurs, OSHA inspectors are likely to be involved. ANSI standards, on the other hand, are developed by private organisations and essentialthey are formally considered "voluntary consensus standards”. Canada’s mechanical safety standards are also published by CSA.

FOLDOC - Computing Dictionary BGU, U-M partner to develop renewable energy technologies A new Israeli-American research partnership will collaborate on developing renewable technologies to solve major challenges in the areas of advanced vehicle fuels, solar energy and thermoelectric materials, which convert heat to electricity. The University of Michigan and Ben-Gurion University of the Negev recently signed a memorandum of understanding for the three-year program. Each university pledged half of the $1 million budget. BGU Vice President and Dean for Research and Development Moti Herskowitz, U-M Vice President for Research Stephen Forrest, Ben-Gurion President Rivka Carmi and U-M President Mary Sue Coleman sign MoU. (Photo: Scott Soderberg, Michigan Photography) “We live in a global economy,” U-M Vice President for Research Stephen Forrest said. BGU has been at the forefront of the energy research for more than 30 years, BGU Vice President and Dean for Research and Development Moti Herskowitz said.

Les encres pour imprimantes - [GDS EcoInfo] Comme tout produit de consommation, l’encre a elle aussi un impact sur l’environnement à toutes les étapes de son cycle de vie, de sa fabrication en passant par son emballage (souvent conséquent), son transport, son utilisation et son recyclage. De plus, selon sa composition, il sera plus ou moins aisé de désencrer le papier en vue de son recyclage. Diverses encres sont utilisées selon la technologie des imprimantes mises sur le marché : Jet d’encre Ce procédé se divise en 2 catégories : le jet continu et la goutte à la demande. L’encre utilisée dans la technologie à jet d’encre rendrait le papier impropre au recyclage d’après l’INGEDE, organisme regroupant des usines de papier européennes traitant le papier de récupération (source IFRA) Laser Chaque année, 50 millions de cartouches laser sont achetées en Europe. L’impression laser est un procédé d’impression photo-électrique qui utilise de l’encre en poudre (toner). Encre solide Encre végétale Les inconvénients : Ressources complémentaires