Filter Paper, Whatman No.1, 9.0 cm Diameter Dissolved Oxygen Testing Compatible with an APALS mini
Baker’s notes & crumb story
Description
Filter Paper, Whatman No.1, 9.0 cm Diameter Dissolved Oxygen Testing Compatible with an APALS mini Compatible with an APALS mini strobe for enhanced nighttime visibility Visual appearance is bright dark red to magenta (depending on concentration) and bright orange under ultraviolet light