GB/T 20854-2007 金属和合金的腐蚀 循环暴露在盐雾、“干”和“湿”条件下的加速试验
作者:标准资料网 时间:2024-05-14 20:37:27 浏览:9197
来源:标准资料网
基本信息
| 标准名称： | 金属和合金的腐蚀 循环暴露在盐雾、“干”和“湿”条件下的加速试验 |
| 英文名称： | Corrosion of metals and alloys—Accelerated testing involving cyclic exposure to salt mist “dry”and “wet” condition |
| 中标分类： |
冶金 >>
金属理化性能试验方法 >>
金属化学性能试验方法 |
| ICS分类： |
冶金 >>
金属的腐蚀
|
| 发布部门： | 中华人民共和国国家质量监督检验检疫总局 中国国家标准化管理委员会 |
| 发布日期： | 2007-03-09 |
| 实施日期： | 2007-10-01 |
| 首发日期： | 2007-03-09 |
| 作废日期： | |
| 主管部门： | 中国钢铁工业协会 |
| 提出单位： | 中国钢铁工业协会 |
| 归口单位： | 全国钢标准化技术委员会 |
| 起草单位： | 中国科学院金属研究所、冶金工业信息标准研究院 |
| 起草人： | 王振尧、韩薇、冯超、于国才、柳泽燕 |
| 出版社： | 中国标准出版社 |
| 出版日期： | 2007-07-01 |
| 页数： | 平装16开 页数：12, 字数：16千字 |
| 计划单号： | 20051369-T-605 |
| 书号： | 155066·1-29682 |
适用范围
本标准规定了用于评价使用于户外盐污染环境中的金属材料耐蚀性的加速腐蚀试验的仪器和试验方法。
前言
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所属分类： 冶金 金属理化性能试验方法 金属化学性能试验方法 冶金 金属的腐蚀
基本信息
| 标准名称： | 鹿流行性出血病琼脂免疫扩散试验操作规程 |
| 英文名称： | Protocol of agar gel immunodiffusion test for eqizootic haemorrhagic disease of deer |
| 中标分类： |
农业、林业 >>
畜牧 >>
动物检疫、兽医与疫病防治 |
| 发布部门： | 中华人民共和国国家质量监督检验检疫总局 |
| 发布日期： | 2002-11-25 |
| 实施日期： | 2003-05-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 起草单位： | 国家认证认可监督管理委员会 |
| 出版日期： | 1900-01-01 |
| 页数： | 平装16开， 页数：5， 字数：7千字 |
适用范围
本标准规定了鹿流行性出血病琼脂免疫扩散试验的操作规程。本标准适用于动物鹿流行性出血病琼扩抗体的检测。
前言
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目录
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引用标准
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所属分类： 农业 林业 畜牧 动物检疫 兽医与疫病防治
Product Code:SAE J171
Title:Measurement of Fuel Evaporative Emissions from Gasoline Powered Passenger Carsand Light Trucks Using the Enclosure Technique (Cancelled Dec 2000)
Issuing Committee:Sae Ic Powertrain Steering Committee
Scope:This SAE Recommended Practice describes a procedure for measuring evaporative emissions from fuel systems of passenger cars and light trucks. Emissions are measured during a sequence of laboratory tests that simulate typical vehicle usage in a metropolitan area during summer months:a. A 1 h soak representing one diurnal cycle in which temperature of fuel in the vehicle's tank is raised from 15.6 to 28.9 掳C (60 to 84 掳F)b. A 17.9 km (11.1 mile) drive on a chassis dynamometerc. A 1 h hot soak immediately following the 17.9 km (11.1 mile) driveThe method described in this document, commonly known as the SHED (Sealed Housing for Evaporative Determination) technique, employs an enclosure in which the vehicle is placed during the diurnal and hot soak phases of the test. Vapors that escape from all openings in the fuel system--both expected and unexpected--are retained in the enclosure, and the increase in hydrocarbon (HC) concentration of the atmosphere in the enclosure represents the evaporative emissions. Emission values measured by the enclosure method can, therefore, be significantly different than those obtained by the former trap method, depending on fuel system configuration and component design.The test sequence and methods for measuring emissions are applicable to vehicles either with or without systems or devices to control fuel evaporative emissions. Although they have been used successfully with a wide range of vehicles equipped with a variety of control devices, they should not be applied indiscriminately to new or unique vehicles or fuel systems. For example, based on experience that temperature excursions of the fuel tank in parked vehicles follow those of ambient air, the test sequence prescribes heating of the fuel tank to simulate a diurnal soak. Any control system designed to alter the relation between fuel and ambient temperatures will not be properly evaluated in the test sequences prescribed.This document is intended as a guide toward standard
