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. 2016 May 31;11(5):e0152442. doi: 10.1371/journal.pone.0152442

Fig 1. Average Measurement Error and Standard Error for 0.05% and 0.5% Chlorine Solutions.

Fig 1

Dashed lines represent 10% acceptable margin of measurement error. Error bars represent standard error. *measurement error significantly different from digital titration (p<0.05); †measurement error significantly different from stabilized NaOCl (p<0.05). Bold: Titration Kits, Italics: DPD kits, Plain: Test Strips