Search results for keyword: pollution
GB 13456-92 Discharge Standard of Water Pollutants for Iron and Steel Industry
GB 13456-92 Steel Industry Water pollution Emission Standards
In order to protect the environment, the State Council ratified the Steel Industry Water pollution Emission Standard (GB 13456-92) on April 1, 1993, which became effective on July 1 of that same year. This standard applies to all types......
1024 
Oliver
GB 3838-88 Surface Water Environmental Quality Standard
GB 3838-88 Groundwater Environment Quality Standard
Introduction
The quality of groundwater is important for human activities, environment protection and ecological security. To ensure the quality of groundwater, the Environmental Protection Agency of China (EPA) established the Groundwater Env......
GB/T24001-96 Environmental Quality Standard
Introduction
GB/T24001-2004 is a national standard in China for environmental management systems stipulating the requirements of an environmental management system. This standard applies to any organization that wants to establish and maintain an effective environmental management system (EMS) an......
Sintered NdFeB permanent magnet material (ZB/H58003-1990)
Introduction
The sintered Nd-Fe-B magnets, also known as Neodymium or NdFeB magnets, are permanent magnets made of a range of materials, namely an alloy of rare-earth elements neodymium (Nd) and iron (Fe), along with the addition of some boron (B). The powerful magnetic properties of these magnet......
Brief introduction of 0Cr18Ni11Nb (AISI347) steel grade
Introduction of AISI347
AISI347, also known as 0Cr18Ni11Nb, is a stainless steel grade developed and produced by the American Iron and Steel Institute (AISI). It is an austenitic stainless steel alloy containing at least 18% chromium, 11% nickel and 0.75% niobium, with additions of molybdenum, ti......
10F Purpose
The Social and Economic Impact of Fastest-Growing Corporations
Today, large corporations are the most dynamic and influential economic entities in the world, providing jobs, products, and services to people around the globe. In many ways, they are the engine of World Economic growth, at least in ......
20 uses
Environmental Challenges in Urban Areas
Urban areas are increasingly burdened by environmental challenges. As the number of city-dwellers and the demands for services expand, so does the impact of human activities. This can be seen in the form of air and water pollution, inadequate sanitation and......
3Cr18Mn12Si2N use
Application of 03Cr18Mn12Si2N
Stainless steel 03Cr18Mn12Si2N (0Cr18Mn12Si2N) is a high-chromium ferrite type stainless steel, used at 500-590℃,which requires high-temperature strength, corrosion resistance and oxidation resistance. It is mainly used for the blades and impellers of steam turbines......
65, 70 purposes
Global Warming
Global warming is one of the greatest threats facing our planet today. It is caused by increasing concentrations of greenhouse gases like carbon dioxide and methane in our atmosphere. These gases trap the suns heat, causing the earths temperature to steadily rise over time.
Much ......
46S20/4 use
Global Positioning System (GPS)
The Global Positioning System (GPS) is a satellite-based navigation system that provides location and time information in all weather conditions to users around the world. It is a network of satellites orbiting the Earth at an altitude of approximately 12,000 mil......
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