Document ID: chunk:federal_register_of_legislation:F2013C00288:reg:14
Version: federal_register_of_legislation:F2013C00288
Segment Type: reg
Provision Reference: reg 14
Character Range: 1718566–1719202

14                                  log EC50 (aged)               0.95 log CEC + 1.76 (r2 = 0.72)  EC 2008b

a = all the CEC measurements were made using the silver thiourea method (Chhabra et al. 1975).

Table 73. The normalisation relationships for nickel (Ni) that could explain more than 50% of the variation in the NOEC and 10% effect concentration (EC10) data. The x and y parameters in each equation are the logarithms of the CEC and of the NOEC or EC10 toxicity data, respectively. The relationships used to normalise the toxicity data in this project are in bold.
Eqn no.  Species and end point                X parameter(s)a