DWK Wheaton 14/20 Tube, Drying (MTO)

DWK Wheaton 14/20 Tube, Drying Used for arsenic analysis using silver diethyldithiocarbamate (SDDC) colorimetric method described in the 21st Edition (2005) of Standard Methods for the Examination of Water and Wastewater, Method 3500-As B Design eliminates the ball and socket joint connecting the scrubber and absorber components Assembled apparatus is freestanding and easy to use Manufactured from WHEATON 33 low extractable borosilicate glass that conforms to USP Type I and ASTM E 438 Type I, Class A requirements (This item is MTO, cannot be canceled, or returned.) - WTN