Inter Laboratory Study Articles & Analysis
3 articles found
Modifications to the H. azteca method include better defined ionic composition requirements for exposure water (i.e., >15 mg/L of chloride and >0.02 mg/L of bromide) and improved survival, growth and reproduction with alternate diets provided as increased rations over time in water‐only or whole‐sediment toxicity tests. A total of 24 laboratories volunteered to participate in an ...
These concentrations are then compared to ambient water criteria (final chronic values – FCVs) to assess the potential for impact to benthic organisms. The inter‐laboratory validation study that was used to finalize ASTM D7363‐13 was developed using 24 of the 2‐, 3‐, and 4‐ring PAHs (PAH‐24) that are included in the USEPA PAH‐34 analyte list. ...
Within laboratory intra‐assay variability was generally acceptable and below 15%. Factors contributing to inter‐laboratory variability included calculation errors, assay type, and methodology. Based on the inter‐laboratory variability detected, we provide guidelines and recommendations to improve accuracy and ...