Fill a clean sample cell eith 10 mL of sample (the blank). Note: For turbid samples, treat the blank with one 0.1-gram scoop of Ro Ver Rust Remover.Swirl to mix.
Fill a clean sample cell eith 10 mL of sample (the blank).Note: For turbid samples, treat the blank with one 0.1-gram scoop of Ro Ver Rust Remover.Swirl to mix.