TY  - RPRT
TI  - Use of sulfur dioxide to study photodegradation rates of poly(vinyl Chloride) plastics 
AU  - Gray, V E
PY  - 1967
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS RPT 9648
DO  - 10.6028/NBS.RPT.9648
ER  -