・ BOD Fran Bin is used to add planted dilution water to the sample for 5 days at 20 ° C during BOD measurement such as factory drainage.
・ The material is made of hard glass.
-The uniform quantity franc bottle can be accurately sampled with ± 1 % accuracy (100 ml, 102ml).

● No groove Fran Bin is a product standard for DO meter electrodes. The groove has a groove and the body. When removing the plug, matching both grooves will be ventilated, making it easier to remove the plug.