本文件为血液和尿液中铅浓度的测量提供了指南，包括样本采集、石墨炉原子吸收光谱法测量、阳极溶出伏安法和电感耦合等离子体质谱法。它还包括质量保证和质量控制指南，以及有关能力验证计划和实验室认证的信息。

This document provides guidance for the measurement of lead concentrations in blood and urine, including specimen collection, measurement by graphite furnace atomic absorption spectrometry, anodic stripping voltammetry, and inductively coupled plasma mass spectrometry. It also includes guidelines for quality assurance and quality control, and information on proficiency testing programs and laboratory certification.