Search results for keyword: criteria
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......
1045 
Victoria
JB/T4750-2003 "Pressure Vessels for Refrigeration Devices" is a recommended industry standard (replacing JB6917-1998)
Pressure Vessels for Refrigerating Apparatus
This industry standard JB/T4750—2003 replaces JB6917-1998 and provides instructions for design and assessment tests for safe performance of pressure vessels for refrigerating apparatus.
1. Scope
This standard applies to pressure vessels used in the ......
JGJ81-2002 Construction Steel Structure Welding Technical Regulations (Part 8)
Welding technology regulations of building steel structures according to JGJ81-2002(part 8)
Welding of steel structures is an important part of the construction technology of steel structures. In steel structure construction, welding is used to connect steel members, building components and addit......
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......
Dimensions, shapes, weights and allowable deviations of cold-drawn round steel (abstract) GB 905-82
The GB 905-82 standard which outlines the specifications for cold drawn round steel covers the dimensions, shape, weight, and permissible deviation from the specified dimension and shape of cold drawn round steel products. The applicable materials are carbon steel products, alloy steel products, a......
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......
GB/T 4162-91 Ultrasonic Inspection Method for Forged Steel Bars
材料
Abstract
Ultrasonic testing is an important technique for detection of rolling defects in steel bars. Ultrasonic testing is typically used to detect internal flaws, such as cracks and other discontinuities, that cannot be detected by visual inspection. GB／T 4162–91 regulates the ultrasonic ......
Russian and European steel scrap standards
，标题为：Russia and European Scrap Steel Standards
Introduction
Scrap steel is an important resource in the industrial world today. It is used not only to make steel products, but also to manufacture parts and components for various machinery, vehicles, and tools. Steel scrap comprises a wide var......
Composite steel plate ultrasonic flaw detection method GB 7734-87
Ultrasonic testing is a form of non-destructive testing that utilizes the principle of ultrasound, which is the vibration of sound waves greater than the human ear can detect, to detect flaws in a material. It’s one of the most common testing methods used to inspect steel plates, and can be appli......
Steel marking code (GB/T15575-1995)
Steel mark codes (GB/T15575-1995)
The steel mark code system (GB/T15575-1995), also known as “Steel Mark Identification and Classification” is a set of 22 characters that in China are used to identify and classify different steels. Each character has a corresponding meaning, and a specific orde......
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