title: Tentative method of analysis for atmospheric soiling index by transmittance (paper tape sampler method) 11201-01-72T.
mesh_terms: D000397:Air Pollution / Q000032:analysis*; D003124:Colorimetry; D003720:Densitometry; D005374:Filtration; D008433:Mathematics; D008722:Methods; D010209:Paper; D010316:Particle Size; D013057:Spectrum Analysis