TY  - RPRT
TI  - Hail impact testing procedure for solar collector cover 
AU  - Jenkins, David R
AU  - Mathey, Robert G
PY  - 1982
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 82-2487
DO  - 10.6028/NBS.IR.82-2487
ER  -