The temperature options that apply to the testing of treatment units which are certified to BNQ 3680-600 standard are referenced in Sentence 8.6.2.2.(5) of the Code and are set out in option a) and option b) of Clause 8.2.2. of the BNQ standard as follows:
(a)
non-controlled temperature
(b)
controlled temperature so that the influent wastewater is heated to 11°C ±1°C, whenever necessary to assure a minimum temperature of 10°C. Note - this option is based on a temperature of 10°C, which is a typical temperature at the outlet of the septic tank and, as well, it is required for testing nitrogen reduction treatment technologies.
Additional treatment options that are available in this standard, but are not currently required by the Building Code, are as follows:
Notes to Table:
(1) Maximum concentration in CFU/100 mL based on 30 day average.
(2) ND means non-detectable (median < 10 CFU/100 mL)
Notes to Table:
(1) Maximum concentration in mg/L based on 30 day average.