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Table 4 Inter-laboratory test results for PERC eluate

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

Test PERC 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 1 2 0 0 1 2
LID or EC50 n.d 3 0 0 0 1 0 1 0
Outlier 1 1 0 1 0 0 0 0
Number of tests for statistics 10 22 15 19 13 23 14 20
Min./max 0.68–1.46 1.31–4.80 2.63–24.55 0.027–0.043 96–1024 24–192 8–32 8192–24,576
Geometric mean 0.99 2.54 8.17 0.034 323 71 19.4 12,973
95% CI 0.84–1.17 2.16–2.98 6.21–10.76 0.032–0.037 222–469 57–87 14.9–25.3 11,298–14,897
95% PI 0.62–1.58 1.25–5.16 3.09–21.62 0.026–0.045 96–1086 27–182 8.0–47.4 7270–23,149
Reproducibility sR% 24.0 37.4 52.9 14.2 68.4 51.2 48.0 30.2
  1. n.d. not determined, CI confidence interval, PI prediction interval