Bottles are designed for sampling and incubation of aqueous samples for B.O.D.

Bottle’s shoulder radius provides an interior shape which sweeps entrained air out of the stopper opening. Stopper design uses a conical extension to displace excess sample which further ensures no air entrapment in the sample.

analysis. For reference see Method 5210-B: 5-day B.O.D. Test, Standard Methods for Examination of Water and Wastewater. Bottles conform to ASTM E438, Type I, Class B, borosilicate glass.