Search results for keyword: 005
GB/T 1803-2003 Limits and matching dimensions up to 18mm hole and shaft tolerance zone
GB/T 1803—2003 limits and fits for holes and shafts from 18 mm. Holes and shafts ar...
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GB/T 5816-1995 Catalyst and adsorbent surface area determination method
GB/T 5816-1995 Method for Determining the Surface Area of Catalysts and Adsorbents
The surface area of catalysts and adsorbents is a measure of the internal surface area of the intact material. This surface area is an important parameter for predicting the effect of catalytic and adsorptive proce......
GB/T 9872-1988 Determination of bromine and chlorine in rubber and rubber products by oxygen cylinder combustion method
GB/T 9872-1988 Determination of Bromine and Chlorine Contents in Rubbers and Rubber Products by Oxygen Burning
1 Introduction
GB/T 9872-1988 [1] is a standard specifying a test method to determine the bromine and chlorine contents in rubbers and rubber products by oxygen burning, which was issu......
GB 13005-91 Gas Cylinder Terminology
GB 13005-91 Terminology of Cylinder
This standard is applicable to the general terminology used in the production, testing, use, conversion, recovery and inspection of cylinders for the storage, transport and distribution of petroleum, chemical products and other gases.
1 General
In this standa......
GB 15384-94 Gas cylinder model nomenclature
Abstract
This paper introduces the naming method for gas cylinder models, which is based on the standard GB 15384-94 of gas cylinders. By applying the naming method along with the classification of the standard, this paper presents a set of methods that can be used to designate a particular gas c......
GB/T534-2002 industrial sulfuric acid
GB／T534-2002 Industrial sulfuric acid
1. General
This standard stipulates the quality requirements and its test methods, rules and signs of industrial sulfuric acid. This standard is applicable to sulfuric acid of sulfur dioxide smelting, industry and its products of absorbed water, qualified p......
GB/T7445-1995 pure hydrogen, high-purity hydrogen and ultra-pure hydrogen
GB/T 7445-1995 Hydrogen, High Purity Hydrogen and Ultra-high Purity Hydrogen
1 Scope
This standard specifies the requirements, sampling and chemical and physical testing of hydrogen, high purity hydrogen, and ultra-high purity hydrogen.
2 Normative References
The following documents are essent......
GB12137-89 Gas cylinder airtightness test method
GB12137-89 Gas Cylinder Air Tightness Test Method
Introduction
This standard specifies the requirements, test conditions, test items, results evaluation, and marking, packaging and transport of gas cylinders for air tightness testing. This Standard applies to the air tightness test of welded ste......
GB1230-05 Test method for aerodynamic performance of fans (1)
GB1230-05 Test Method for Performance of Fans for Ventilating Purposes
1 Introduction
GB1230-05 is a standard test method used to measure the air performance of fans used for ventilating purposes. This standard is used in both China and the European Union, regulating the performance of fans in t......
Summary of Safety Valve Standards (2)
，关于安全阀的种类标准
Safety valves are the primary regulatory device in boilers and pressure vessels, mainly used to ensure the safe operation of boilers and pressure vessels by releasing the excessive pressure generated by boilers or pressure vessels during operation. Safety valves, as an import......
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