title: Interchangeability of gas detection tubes and hand pumps.
authors.forename: D J
authors.initials: DJ
authors.lastname: Hirsh
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D004867:Equipment Design / Q000592:standards; D004869:Equipment Safety; D005740:Gases / Q000032:analysis*; D006801:Humans; D014481:United States; D014619:Vacuum Curettage / Q000592:standards*
chemical_list: D000393:Air Pollutants; D005740:Gases