Reference
- Hounam , R. F. AERE-R-4125 1962 . A Method for Evaluating the Protection Afforded When Wearing a Respirator. , AERE-R-4125 , Harwell, , England : Atomic Energy Research Establishment .
- White , J. M. and Beal , R. J. 1966 . The Measurement of Leakage of Respirators. . Amer. Ind. Hyg. Assoc. J. , 27 : 239
- 1963 . American Industrial Hygiene Association . Respiratory Protective Devices Manual ,
- Davies , C. N. , ed. 1962 . Design and Use of Respirators , New York : Pergamon Press .