ASTM International

Interlaboratory Cooperative Study of the Precision and Accuracy of the Measurement of Nitrogen Dioxide Content in the Atmosphere -  Method D1607
 N DS55

Annotation

INTRODUCTION

This report presents the results obtained from an experimental study of the accuracy and precision of the measurement of atmospheric levels of nitrogen dioxide using the Griess-Saltzman reaction according to ASTM Method D 1607(1)*. The evaluation of D 1607 was performed as part of the first phase of Project Threshold, a comprehensive program to validate ASTM methods of measuring various atmospheric contaminants, including also sulfur dioxide, lead, dustfall, total sulfation, and particulate matter in Phase 1.

Project Threshold, a multiphase program, is sponsored by American Society of Testing Materials and the experimental program of Phase 1 was organized with Battelle's Columbus Laboratories as the Coordinating Laboratory.

In this experimental program measurements of nitrogen dioxide in ambient air and in ambient air spiked with known quantities of nitrogen dioxide were made at three different geographic locations. The following sections describe the experimental program and present the results of the study.

Автоматический перевод:

Межлабораторное совместное исследование точности и точность измерения содержания диоксида азота в атмосфере - метод ASTM D1607