Aijiren test tubes with rims are made from borosilicate glass 3.3 making them excellent for general laboratory use. Pack size: Pack of 100 Size: 16x125mm Tube Diameter:16mm Tube Length:125mm Wall Thickness :1.2mm
2mL of water or wastewater sample is added to a Chemical Oxygen Demand Tubes containing the digestion reagent and a catalyst. Aijiren is the leading supplier of Chemical Oxygen Demand Tubes from China.