Sets out procedures for the use of standard Ringelmann and Australian Standard miniature smoke charts for estimating the blackness of smoke using a visual technique.
Table of contents
Header
About this publication
Preface
Foreword
1 Scope
2 Standard Ringelmann chart
2.1 Preparation for use
2.2 Method of use
3 Australian standard miniature smoke chart
3.1 General
3.2 The chart
4 Calibration of instruments in Ringelmann number
4.1 Relationship with visually observed Ringelmann number
4.2 Correction for path length
4.3 Correction for temperature
4.4 Correction for velocity
4.5 Multiple sources discharging through one stack
