00000nam 2200000za 4500 9.866036 CaOODSP 20221107161940 cr ||||||||||| 181213t19771978onca||| o f000 0 eng d CaOODSP eng n-cn--- En42-1/75-2E-PDF Standard reference methods for source testing [electronic resource] : measurement of opacity of emissions from stationary sources / Air Pollution Control Directorate, Environmental Protection Service. [Ottawa] : Environmental Protection Service, 1977, c1978. iii, 27 p. : ill. Report EPS ; 1-AP-75-2 "November 1977." Digitized edition from print [produced by Environment and Climate Change Canada]. Issued also in French under title: Méthodes normalisées de référence pour le contrôle de l'opacité des émissions provenant de sources fixes. Includes bibliographical references. "The test methods (transmissometry and trained observer) presented in this report are used to determine the opacity of visible emissions from stationary sources"--Foreword. gccst Air pollution gccst Measurement gccst Methodology Canada. Environment Canada. Environmental Protection Service. Canada. Air Pollution Control Directorate. Méthodes normalisées de référence pour le contrôle de l'opacité des émissions provenant de sources fixes (CaOODSP)9.866051 Environmental Protection Service report series ; 1-AP-75-2 (CaOODSP)9.866031 PDF 621 KB https://publications.gc.ca/collections/collection_2018/eccc/En42-1-75-2-eng.pdf