本指南涉及尿液分析程序的制定，以确定某些受控物质的存在；用于标本采集和处理；分析方法；质量保证；以及报告和解释结果。

This guideline addresses the development of procedures for urine analysis to determine the presence of certain controlled substances; for specimen collection and processing; for methods of analysis; for quality assurance; and for the reporting and interpretation of results.