Australian Capital Territory Numbered Regulations Australian Capital Territory Numbered Regulations(a) by omitting from the definition of “biochemical oxygen demand” in subregulation (1) all the words after “determined” and substituting “over a period of 5 days”;
(b) by omitting from the definition of “chemical oxygen demand” in subregulation (1) all the words after “utilized” and substituting “in the chemical oxidation of organic matter in a sample of water or of waste using potassium dichromate as the oxidant”;
(c) by omitting the definitions of “dissolved organic carbon content” and “flash point” in subregulation (1) and substituting respectively the following definitions:
“ ‘dissolved organic carbon content', in relation to a sample of water or of waste, means the total organic carbon value of that sample after it has been filtered through a 0.45 micrometre pore diameter filter;
‘flash point', in relation to a flammable liquid, means the lowest temperature at which the application of a flame to the liquid causes the vapour above the liquid to ignite momentarily when the liquid is heated under the standardised test conditions set out in Australian Standard 2106-1980 as in force on 31 October 1986;”;
(d) by omitting from subregulation (1) the definitions of “Australian Standard 2031”, “filtrable residue”, “the Ordinance” and “Standard Methods”; and
(e) by inserting in subregulation (1) the following definitions:
“ ‘Act' means the Water Pollution Act 1984 ;
‘settleable solids', in relation to a sample of water containing waste, means material that settles from that sample over a period of 1 hour;
‘total dissolved solids', in relation to a sample of water or of waste, means the amount of material in that sample that passes through a standard glass fibre filter and remains after evaporation;
‘total suspended solids', in relation to a sample of water or of waste, means the amount of material retained on a standard glass fibre filter after the sample passes through the filter;”.