Great Little Test Tube (for use in the rack or set)
The last number that is written with ink is 13ml. After that there is another line (14ml) and finally a top line that is molded into the test tube with "15ml" written upside down.
On top of that 15ml line there is also 2ml of room left, so it has room to mix.
15ml Tester Tube Specifications
Download Flavor Specification Sheet15ml Tester Tube Spec Sheet
Download Certificate of Analysis15ml Tester Tube COA
15ml Tester Tube Safety Data Sheets (SDS)
USA PMTA Sheet (PMTA):