- 威望
- 13529
- 金币
- 15794
- 贡献
- 236
- 在线时间
- 102 小时
- 最后登录
- 2022-4-28
- 阅读权限
- 90
- 注册时间
- 2012-3-2
- 积分
- 13529
 
TA的每日心情 | 擦汗 2014-7-2 18:11:55 |
---|
签到天数: 1 天 连续签到: 1 天 [LV.1]初来乍到 - 金币
- 15794
- 贡献
- 236
- 威望
- 13529
- 在线时间
- 102 小时
- 注册时间
- 2012-3-2
- 最后登录
- 2022-4-28
- 积分
- 13529
|
【英文标准名称】: Standard Test Methods for Flash Point by Pensky-Martens Closed Cup Tester 【原文标准名称】: 用潘斯基-马丁斯闭杯试验器测定闪点的标准试验方法 【标准号】: ASTM D93-2007 【标准状态】: 现行 【国别】: 【发布日期】: 2007 【实施或试行日期】: 【发布单位】: 美国材料与试验协会(ASTM)【起草单位】: D02.08【标准类型】: (Test Method)【标准水平】: ()【中文主题词】: 涂层;防火安全;闪点;润滑剂;油性涂料;涂料;潘斯基-马丁斯仪器;石油产品;溶剂;测试;木材【英文主题词】: automated flash point; automated Pensky-Martens closed cup; flammability; flash point; Pensky-Martens closed cup;【摘要】: The flash point temperature is one measure of the tendency of the test specimen to form a flammable mixture with air under controlled laboratory conditions. It is only one of a number of properties which must be considered in assessing the overall flammability hazard of a material. Flash point is used in shipping and safety regulations to define flammable and combustible materials. One should consult the particular regulation involved for precise definitions of these classifications. Note 38212;The U.S. Department of Transportation (DOT)4 and U.S. Department of Labor (OSHA) have established that liquids with a flash point under 37.8x00B0;C (100x00B0;F) are flammable, as determined by these test methods, for those liquids which have a kinematic viscosity of 5.8 mm 2/s (cSt) or more at 37.8x00B0;C or 9.5 mm 2/s (cSt) or more at 25x00B0;C (77x00B0;F), or that contain suspended solids, or have a tendency to form a surface film while under test. Other classification flash points have been established by these departments for liquids using these test methods. These test methods should be used to measure and describe the properties of materials, products, or assemblies in response to heat and an ignition source under controlled laboratory conditions and should not be used to describe or appraise the fire hazard or fire risk of materials, products, or assemblies under actual fire conditions. However, results of these test methods may be used as elements of a fire risk assessment which takes into account all of the factors which are pertinent to an assessment of the fire hazard of a particular end use. These test methods provides the only closed cup flash point test procedures for temperatures up to 370x00B0;C (698x00B0;F).1.1 These test methods cover the determination of the flash point of petroleum products in the temperature range from 40 to 3608212;C by a manual Pensky-Martens closed-cup apparatus or an automated Pensky-Martens closed-cup apparatus.Note 18212;Flash point determination as above 250176;C can be performed, however, the precisions have not been determined above this temperature. For residual fuels, precisions have not been determined for flash points above 100176;C.1.2 Procedure A is applicable to distillate fuels (diesel, kerosine, heating oil, turbine fuels), new lubricating oils, and other homogeneous petroleum liquids not included in the scope of Procedure B.1.3 Procedure B is applicable to residual fuel oils, cutback residua, used lubricating oils, mixtures of petroleum liquids with solids, petroleum liquids that tend to form a surface film under test conditions, or are petroleum liquids of such kinematic viscosity that they are not uniformly heated under the stirring and heating conditions of Procedure A.1.4 These test methods is applicable for the detection of contamination of relatively nonvolatile or nonflammable materials with volatile or flammable materials.1.5 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.Note 28212;It has been common practice in flash point standards for many decades to alternately use a C-scale or an F-scale thermometer for temperature measurement. Although the scales are close in increments, they are not equivalent. Because the F-scale thermometer used in this procedure is graduated in 5176; increments, it is not possible to read it to the 2176;C equivalent increment of 3.6176;F. Therefore, for the purposes of......【中国标准分类号】: C80【国际标准分类号】: 13_220_40; 75_080; 75_160_20; 13_220_40; 75_080; 75_160_20; 13_220_40; 75_080; 75_160_20【页数】: 16P.;A4【正文语种】:
|
|