A computer-implemented method to generate visualizations of endotoxin concentrations in a fluid sample, the method comprising: generating, by a processor, for a graphical user interface or for a report, to be displayed on a stationary or mobile computing device, a graphical visualization, from a data set that identifies an optical density (OD) reading of a micro plate comprising a plurality of optical wells, each optical well containing a fluid sample, said graphical visualization comprising a vertically-oriented bar graph having a plurality of vertical bars with at least one vertically-oriented bar graph for each optical well of the micro plate, wherein the processor causes the vertically-oriented bar graph corresponding to the optical well of the micro plate to increase vertically over time as a reaction between Limulus Amoebocyte Lysate (LAL) and bacterial endotoxin takes place in the optical well of the micro plate, wherein a greater amount of endotoxin present in the optical well, the faster the reaction occurs with the LAL reagent, and subsequently the faster the processor causes the associated vertically-oriented bar graph to increase on the graphical visualization, the method further comprising: generating, by the processor, vertically-oriented bar graphs representing endotoxin standards and negative controls that are also displayed on the graphical visualization, generating, by the processor, the vertically-oriented bar graphs representing positive product controls on the graphical visualization. generating, by a processor, for a graphical user interface or for a report, to be displayed on a stationary or mobile computing device, a graphical visualization, from a data set that identifies an optical density (OD) reading of a micro plate comprising a plurality of optical wells, each optical well containing a fluid sample, said graphical visualization comprising a vertically-oriented bar graph having a plurality of vertical bars with at least one vertically-oriented bar graph for each optical well of the micro plate, wherein the processor causes the vertically-oriented bar graph corresponding to the optical well of the micro plate to increase vertically over time as a reaction between Limulus Amoebocyte Lysate (LAL) and bacterial endotoxin takes place in the optical well of the micro plate, wherein a greater amount of endotoxin present in the optical well, the faster the reaction occurs with the LAL reagent, and subsequently the faster the processor causes the associated vertically-oriented bar graph to increase on the graphical visualization, the method further comprising: generating, by the processor, vertically-oriented bar graphs representing endotoxin standards and negative controls that are also displayed on the graphical visualization, generating, by the processor, the vertically-oriented bar graphs representing positive product controls on the graphical visualization. generating, by the processor, vertically-oriented bar graphs representing endotoxin standards and negative controls that are also displayed on the graphical visualization, generating, by the processor, the vertically-oriented bar graphs representing positive product controls on the graphical visualization. <EOS>