2,2,4-Trimethylhexane

Powder reagents for free chlorine (100 tests). Contains: 100 sachets

EPA 8040 Surrogate Standard S-4241 2mg/mL each in isopropanol, 1 mL, 5 x 1mL, 5mL 2-Fluorophenol 2,4,6-Tribromophenol

4-tert-Butylcatechol