网站简介：American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. publishes standards in the areas of HVAC and refrigeration for use by contractors, engineers, building owners and building code bodies.
网站简介：Provides a set of unit converters and explanations of each unit.
网站简介：A full-service consulting, training and publishing firm offering a distinctive source for products and services that fall under the umbrella of Total Quality Management (TQM).
网站简介：Distributor of U.S., international and national standards, specifications and technical publications.
网站简介：UK's national standards laboratory, founded in 1900 to promote links between science and commerce. Offers world-class metrology facilities for calibration services. Research programmes, measurement solutions, news, events, history, publications, press centre, careers, clubs, learning room.
网站简介：Features converter tools for measurement, currency exchange, world time zones, time, finance, driving distance, Roman numerals, atmosphere, and body mass index. Also, has a basic calculator and periodic table.
网站简介：Managing the standards development structure in Malaysia inclusive of international standards committees assigned to Malaysia
网站简介：Directory of simply-presented javascript calculators and equations for making common calculations. Provides quick, simple online calculation and unit conversion tools.
网站简介：Australian standards organizetion. Standdards information and news.
网站简介：Standard-to-metric conversion factor tables with definitions, derived units and prefixes.
网站简介：ISO 9001:2000 resources including documentation, training, online tutorials, how-to articles and management tools.
网站简介：Plain English descriptions of ISO/IEC 27001, 27002 and other standards, including a list of the controls.
网站简介：Canadian Standards Association, with information about CSA, its standards, an online shop and consumer information.
网站简介：Definitions of SI units and SI prefixes, units outside the SI, rules and style conventions, historical context for SI units, international aspects of the SI, and unit conversions.
网站简介：A standards developer for the American National Standards Institute and the national clearinghouse for voluntary standards development in the U.S.
网站简介：Offers online unit conversion and calculation tools with corresponding math formulas. Plus conversion validation and unit lookup tools.
网站简介：The Swedish member of the international organizations ISO and CEN, SIS, develops standards in Sweden and offer education and consultation services.
网站简介：A dictionary of units of measurement: explanations of the metric system, System Internationale (SI), English customary system, and other modern measuring systems. Plus extensive links to other measurement-related Internet resources.
网站简介：Promotes voluntary technical harmonization in Europe in conjunction with worldwide bodies and its European partners.
网站简介：The British Columbia Safety Authority is an independent, self-funded corporation that provides cost-effective and essential safety services to business, industry and the general public.
网站简介：Providing ISO 9001, ISO 14001, HACCP ISO 22000, OHSAS 18001, ISO 27001, SA 8000 certification consulting and training. ISO 9001 certification consultants with clients in India, USA, UK, Saudi Arabia, Greece, Maldives, UAE, Kuwait, Africa. Providing quick, value added and cost effective services for ISO certification.
网站简介：A unit conversion utility for students, teachers, and practitioners in engineering. Offers a wide range of categories.
网站简介：Official site provides standards, product testing, certification programs and training. [English, Hebrew]
网站简介：Providing training, lab testing, certification and metrological skills.
网站简介：Standardization organization for the Republic of Ireland.