Xylene Sensidyne Colorimetric Gas Detection Tubes Model:Xylene (5-200 ppm) It is ideal for sealing

It is ideal for sealing sacks and bags after sampling and dispensing

Swap membranes on schedule to keep DO readings accurate and fast-responding

The hydro treated AD20™ Parts Washer Purple Label solvent penetrates grime

It has the ability to give you an accurate undisturbed sample for meeting the EPA's groundwater low flow sampling procedure protocols for the collection of groundwater samples from monitoring wells

Xylene Sensidyne Colorimetric Gas Detection Tubes Model:Xylene (5-200 ppm) It is ideal for sealingFeatures & Benefits High precision, direct reading detector tubes for over 350 measures of gas & vapor substances High quality and highly reliable, best in class tubes Easy to use, low cost per sample Clear indication of concentration level is shown by length of stain on glass tube 90% of tubes are 1 or 2 strokes maximum