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Table 3 Inter-laboratory test results for DSLT eluate

From: Ecotoxicological evaluation of construction products: inter-laboratory test with DSLT and percolation test eluates in an aquatic biotest battery

Test DSLT eluate
EC50 LID
Algae growth inhibition test Acute daphnia test Acute fish egg test Bacteria lumines. test Algae growth inhibition test Acute daphnia test Acute fish egg test Bacteria lumines. test
Tests performed (number of labs) 17 25 16 23 17 25 16 23
Tests considered 14 23 16 22 14 23 16 22
Invalid tests 0 0 0 1 0 0 0 1
LID or EC50 n.d 4 0 1 0 0 0 0 1
Outlier 0 0 0 1 1 1 0 0
Number of tests for statistics 10 23 15 20 13 22 16 20
Min./max 0.31–4.07 0.60–3.59 22.18–37.35 0.15–0.26 48–512 48–192 3–12 1536–4096
Geometric mean 1.16 1.48 28.54 0.19 166 107 5.6 2196
95% CI 0.71–1.91 1.22–1.79 26.30–30.97 0.18–0.21 107–260 89–127 4.6–6.8 1897–2543
95% PI 0.30–4.52 0.63–3.50 21.37–38.12 0.14–0.27 39–703 49–235 2.8–11.3 1189–4059
Reproducibility sR% 78.5 46.1 14.9 16.4 84.7 41.9 37.1 32.1
  1. n.d. not determined, CI confidence interval, PI prediction interval