ASTM D6738-2001(2006) Standard Test Method for Precipitated Silica-Volatile Content《沉淀二氧化硅的标准试验方法 挥发物的含量》.pdf
《ASTM D6738-2001(2006) Standard Test Method for Precipitated Silica-Volatile Content《沉淀二氧化硅的标准试验方法 挥发物的含量》.pdf》由会员分享,可在线阅读,更多相关《ASTM D6738-2001(2006) Standard Test Method for Precipitated Silica-Volatile Content《沉淀二氧化硅的标准试验方法 挥发物的含量》.pdf(2页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D 6738 01 (Reapproved 2006)Standard Test Method forPrecipitated SilicaVolatile Content1This standard is issued under the fixed designation D 6738; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisi
2、on. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers a procedure to determine thevolatile content of precipitated hydrated silicas. These volatilesare genera
3、lly excess water adsorbed onto the surface of thesilica. This test method does not determine water of hydrationof the silica.1.2 The values stated in SI units are to be regarded as thestandard. The values in parentheses are for information only.1.3 This standard does not purport to address all of th
4、esafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Significance and Use2.1 The volatiles content of a precipitated sil
5、ica may affectthe processing properties of a rubber mixture containing silicaand the properties of the final product.3. Apparatus3.1 Oven, gravity-convection type, capable of maintaining105 6 5C.3.2 Aluminum Pans, oil free.3.3 Analytical Balance, sensitive to 0.1 mg.3.4 Desiccator.NOTE 1It is import
6、ant that the desiccant is very dry, or moisture maybe drawn from the desiccant into the sample during cooling.4. Procedure4.1 Weigh an aluminum pan to the nearest 0.1 mg andrecord its weight (W1).4.2 Add approximately2gofthesilica sample to the panand reweigh to the nearest 0.1 mg (W2).4.3 Place the
7、 pan with the silica sample into the 105C ovenfor2h6 5 min.4.4 Transfer the pan containing the silica sample from theoven into a desiccator and cool for1horuntil roomtemperature.4.5 Remove the pan containing the silica sample from thedesiccator and reweigh to the nearest 0.1 mg (W3).NOTE 2A ground-g
8、lass stoppered low-form weighing bottle (approxi-mately 30 mm in height by 60 mm in diameter) may be substituted for thealuminum weighing dish in this test method. The sample then is dried inthe oven and cooled in the dessicator with the stopper removed, but finalweighing would be done with the stop
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
最后一页预览完了!喜欢就下载吧,查找使用更方便
5000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ASTMD673820012006STANDARDTESTMETHODFORPRECIPITATEDSILICAVOLATILECONTENT 沉淀 二氧化硅 标准 试验 方法 挥发物 含量 PDF

链接地址:http://www.mydoc123.com/p-523390.html