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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
1050
Oliver
Background of ISO14000 series standards
The International Organization for Standardization (ISO) is an international body whose purpose is to maintain standards for goods, services, and systems across the world. The ISO14000 series of standards is a subset of ISO standards which are specifically designed to help organizations understand......
JGJ81-2002 Construction Steel Structure Welding Technical Regulations (Part 32)
Welding technique in architectural steel structures referred to the requirements of JGJ81 - 2002 Architectural steel structures refer to the structures of buildings, bridges, automobiles and ships constructed by metal materials. In terms of steel, it is the skeleton composed of various metal allo......
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 Welding Technical Regulations for Architectural Steel Structures (Part 12)
JGJ81-2002 Building Steel Structure Welding Technology Specification (Twelfth) Welding technology specification of the building steel structure (JGJ81-2002) is an important specification of the construction industry. It is applicable to the welding of steel structure. Its object is to set the lim......
JGJ81-2002 Construction Steel Structure Welding Technical Regulations (Part 15)
Welding of steel structures is a major factor in the construction of buildings and most other structures. This article will outline the key points of JGJ81-2002 standard for Architectural Steel Structures Welding Technology. The JGJ 81-2002 standard is based on the needs of various types of struc......
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......
NF is the French standard
NF is the French Standard France is a developed country with a rich history, culture, and economy. It also has a broad impact across the globe. A testament to this impact is NF, the French Standard, which has become internationally recognized. But what is NF, and how has it become so influential......
tags: standards nf quality nf french products
1054
Sophia
Ferrochrome nitride (YB/T5140-1993)
: Chromium nitride iron, also known as compound ferritic nitride (Cr + Fe3N), is a high-performance, wear-resistant material developed in the late 20th century. Its wear-resistant performance is about three times higher than that of a high-speed steel cutting tool, and its mechanical properties a......
tags: nitride chromium iron chromium iron nitride
1048
Sophia
Technical Specification for Waterproofing of Underground Engineering (GB50108-2001)
Underground Engineering Waterproofing Technology Specification (GB50108-2001) This standard specifies the technical requirements and acceptance criteria of waterproof engineering design and construction, the process of detection, acceptance, maintenance and management of underground engineering w......
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