发布时间:2024-05-27 17:49:26 - 更新时间:2024年06月29日 15:22
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本标准规定了工业氦气的技术要求、检验方法、检验规则以及产品的包装、标志、贮存、运输等。 本标准适用于深冷法、膜渗透法自天然气、空气或工厂弛放气中提取的瓶装气态氦。主要用于检漏、填充气球、氦飞艇、飞行船等。 分子式:He。 相对分子质量:4.00260(按1991年国际相对
Industrial helium
This publication describes the specification requirements for gaseous and liquid helium. The term container as used in this publication shall refer
Commodity specification for helium
本文件规定了黑火药密度测定的原理、试剂和材料、仪器、采样设备、试验步骤和试验数据处理等内容。 本文件适用于粒状黑火药密度的测定
Determination for black powder specific density —Method of helium
Standard Guide for Investigating the Effects of Helium in Irradiated Metals
This list has been prepared for use by or for the Government in the acquisition of products covered by the subject specification and such listing
VALVES, OXYGEN, HELIUM AND HELIUM OXYGEN MIXTURE, HIGH PRESSURE FOR GAS SERVICES
Valves, Oxygen, Helium and Helium Oxygen Mixture, High Pressure for Gas Services
Measurement of helium porosity and pulse decay permeability of shale
本标准规定了工业氦气的技术要求、检验方法、检验规则以及产品的包装、标志、贮存、运输等。 本标准适用于深冷法、膜渗透法自天然气、空气或工厂弛放气中提取的瓶装气态氦。主要用于检漏、填充气球、氦飞艇、飞行船等。 分子式:He。 相对分子质量:4.00260(按1991年国际相对
Industrial helium
This publication describes the specification requirements for gaseous and liquid helium. The term container as used in this publication shall refer
Commodity specification for helium
本文件规定了黑火药密度测定的原理、试剂和材料、仪器、采样设备、试验步骤和试验数据处理等内容。 本文件适用于粒状黑火药密度的测定
Determination for black powder specific density —Method of helium
Standard Guide for Investigating the Effects of Helium in Irradiated Metals
This list has been prepared for use by or for the Government in the acquisition of products covered by the subject specification and such listing
VALVES, OXYGEN, HELIUM AND HELIUM OXYGEN MIXTURE, HIGH PRESSURE FOR GAS SERVICES
Valves, Oxygen, Helium and Helium Oxygen Mixture, High Pressure for Gas Services
Measurement of helium porosity and pulse decay permeability of shale