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Japan Scrap Iron and Steel Classification Standard
Classification Standards for Japans Scrap Iron and Steel Scrap iron and steel are by-products of a variety of industrial activities. In Japan, scrap iron and steel is classified according to its source. The classification system for scrap iron and steel has been developed by the ministry of Econ......
tags: steel iron scrap steel iron category
1034
Sophie
Japanese National Standard Tapered Thread Dimensions
Japan National Standard Cone Thread Sizes Japan national standard cone threads sizes are standardized by the Japan Industrial Standards Committee (JISC). As the name implies, these are standard threads that are used in many different types of industries including automotive, marine, and even aer......
tags: threads japan standard thread cone diameter
1025
Hazel
Malleable Iron Castings (Abstract) GB 9440-88
GB 9440-88 is a national standard issued by the ministry of Industry and Information Technology of the Peoples Republic of China. It specifies technical requirements, test methods and inspection rules, conditions of supply and acceptance, and packaging, marking and quality certificate of cast iron......
tags: cast iron quality iron castings standard
1027
Sophia
GB 12827-91 standard reference acetylene carbon black and identification method
Carbon black refers to black powdery or granular material, which is composed of many tiny particles with the average particle size of between 10 and 2000 nanometers. It is composedot many carbon atoms buthydrophobic in nature. Carbon black can be prepared by pyrolysis of hydrocarbons such as coal ......
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......
tags: standard steel water standard should water
1028
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......
JGJ81-2002 Welding Technical Regulations for Architectural Steel Structures (Part 26)
Welding of Structural Steel Frameworks Structural steel frameworks are commonly used in the construction of bridges, buildings, and other infrastructure projects. Welding is an essential part of fabricating these structures, as it allows the steel components to be securely joined together. There......
tags: welding steel arc welding steel structure
1026
Hannah
JGJ81-2002 Construction steel structure welding technical specification (twenty-nine)
Steps for Welding Steel Structures According to JGJ 81-2002 Welding of steel structures is an important process in the construction and manufacturing industry. In the past, welding processes were largely undocumented and the industry relied on trial and error methods of welding that were often ti......
tags: welding 812002 jgj welding steel construction
1069
Oliver
JGJ81-2002 Welding Technical Regulations for Architectural Steel Structures (Part 18)
Welding Technology Regulation (18) on Steel Structures in BuildingsJGJ81-2002 The article originates from the national industrial production standard (JGJ81-2002) for the construction of steel structures. It is about the welding technology regulation of the steel structures. The article consis......
JGJ81-2002 Construction steel structure welding technical specification (fourth)
National Technical Specifications for Steel Building Co welding of JGJ81-2002 In 2002, the National Technical Specifications for Steel Building Co welding (JGJ81-2002) was introduced for the construction industry. This document embodies a set of rules and norms that are intended to standardize an......
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