ULTRA-U-EPA-1072-1
Benz[a]anthracene Solution 1000 µg/mL in methanol (methyl alcohol)
ULTRA-U-EPA-1073-1
Benzo[b]fluoranthene Solution 1000 µg/mL in acetone
Benz[a]anthracene Solution 1000 µg/mL in methanol (methyl alcohol)
Benzo[b]fluoranthene Solution 1000 µg/mL in acetone