Search results for keyword: sampling
Development of 55CrSi Wire Rod for Automobile Suspension Spring
Developing the Fire Forming Process with 55CrSi Plate Bar for Automotive Suspension Spring
Abstract
The development of an effective fire forming process for producing automobile suspension spring from 55CrSi plate bar was studied. The fire forming process investigates the effects of burning force......
1029 
Catherine
GB 3095-1996 ambient air quality standard
3095-1996 Air Quality Standards
The air quality standards issued by the Chinese government in 1996, GB 3095-1996, are used to evaluate the air quality of various areas. The standards, also called air quality index standards, are designed to both protect human health and promote the environment.
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GB 6681-86 General Rules for sampling of Gas Chemical Products
General Principles of Gas Chemical Products sampling GB 6681-86 “The General Principles for Gas Chemical Products sampling” provides criteria for sampling variety of gas chemical products, as well as provisions and modeling diagrams of sampling device. This standard effectively protects the fair ......
How Laser Measuring Instruments Work
The Working Principle of Laser Measurement Instrument
Laser measurement instruments are used to measure various parameters such as distance, velocity, angle and force. They are commonly used in applications such as engineering, surveying and construction. The working principle of these instrument......
ASTM A484M-1998 General requirements for stainless and heat-resistant steel bars, billets, and forgings
Abstract
This specification covers general requirements for wrought stainless steels and heat resisting steels in the form of bars, billets, blooms, and forgings for general requirements. The steel shall conform to chemical composition requirements, in which cost-effectiveness shall be considered......
Waste heat treatment steel bars for reinforced concrete (GB 13014-1991)
Heat Treatment of Steel Bar for Reinforced Concrete (GB 13014-1991)
The heat treatment of steel reinforcement for reinforced concrete structures is mainly to control the hardness and strength of steel, reduce the overall weight, and improve the formability, weldability and workability of steel. G......
GB/T 222-1984 Sample sampling method for chemical analysis of steel and allowable deviation of chemical composition of finished product
GB/T 222-1984 specifies the sampling method for the chemical analysis of steel and the permissible deviations for chemical composition of finished products.
The purpose of this standard is to provide technical requirements for the sample method of chemical analysis of steel, and the permissible d......
straightness
Straightness is a measure of how straight an object is, usually compared to a theoretical straight line. In metrology, straightness is an important characteristic of linear dimension. An object’s straightness can change over time due to external factors such as temperature, humidity, and force.
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Sample sampling method for chemical analysis of steel and allowable deviation of chemical composition of finished product
Chemical Analysis of Steel using Sample Testing and Allowable Deviations in Chemical Composition of the Finished Product
Steel is a material that has been of long-standing use in engineering and construction due to its strength, hardness, and durability. The chemical composition of steel is what ......
Sample sampling method for chemical composition analysis of steel and chemical tolerance of finished product (GB222-84) (2)
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Sample Collection and Chemical Composition Analysis of Steel
Steel is a most widely used material in the 21st century, with the exception of the automotive industry and the construction industry, whose usage covers almost all aspects of modern industry and production. As an important material, ......
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