ASTM D 4444 - 92 (Reapproved 2003) Standard Test Methods for Use and Calibration of Hand-Held Moisture Meters1.pdf

astm,astm标准,United States,美国材料与试验协会,国外标准
文档页数:6
文档大小:54.25KB
文档格式:pdf
文档分类:国外标准
上传会员:
上传日期:
最后更新:

Designation:D -92 (Reapproved 2003) INTERNATIONAL Standard Test Methods for Use and Calibration of Hand-Held Moisture Meters1 This standard is issued under the fixed designation D :the number immediately following the designation indicates the year of original adoption or in the case of revision the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon (E)indicates an editorial change since the last revision or reapproval. This standard has been approved for use by agencies of the Department of Defense. 1.Scope 3.1.1 conductance meters-Conductance meters are those 1.1 These test methods apply to the measurement of mois-that measure predominantly ionic conductance between points ture content of solid wood including veneer and wood of applied voltage usually dc.Direct-current conduct-ance products containing additives that is chemicals or adhesives meters are monly referred to as“resistance"meters.Most (subject to conditions in 6.4 and 9.4).They also provide mercial conductance meters are high-input impedance guidelines for meter use and calibration by manufacturers and (about 1012 2 )wide-range (10 to 1012 2)ohmmeters.Their users as alternatives to ovendry measurements. scales are calibrated to read directly in moisture content 1.2 Conductance and dielectric meters are not necessarily (oven-dry mass basis)for a particular calibration species and at equivalent in their readings under the same conditions.When a sp...

资源链接请先登录(扫码可直接登录、免注册)
①本文档内容版权归属内容提供方。如果您对本资料有版权申诉,请及时联系我方进行处理(联系方式详见页脚)。
②由于网络或浏览器兼容性等问题导致下载失败,请加客服微信处理(详见下载弹窗提示),感谢理解。
③本资料由其他用户上传,本站不保证质量、数量等令人满意,若存在资料虚假不完整,请及时联系客服投诉处理。

投稿会员:匿名用户
我的头像

您必须才能评论!

手机扫码、免注册、直接登录

 注意:QQ登录支持手机端浏览器一键登录及扫码登录
微信仅支持手机扫码一键登录

账号密码登录(仅适用于原老用户)