ASTM E1728 E1728M-20 使用擦拭取样方法收集沉淀粉尘样品进行后续铅测定的标准做法.pdf

This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standardis.Guides and Remendations issued by the World Trade Organization Technical Barriers to Trade (TBT)Committee. Designation:E1728/E1728M-20 INTERNATIONAL Standard Practice for Collection of Settled Dust Samples Using Wipe Sampling Methods for Subsequent Lead Determination This standard is issued under the fixed designation E1728/E1728M: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 superseript epsilon (e)indicates an editorial change since the last revision or reapproval. 1.Scope Development of International Standards Guides and Re- 1.1 This practice covers the collection of settled lead- mendations issued by the World Trade Organization Technical containing dust on surfaces using the wipe sampling method. Barriers to Trade (TBT)Committee. These samples are collected in a manner that will permit 2.Referenced Documents s...