Devices to prevent pollution by blackflow of potable water. Pressurised air inlet valves DN 15 to DN 50 . Family L, type A and type B
€71.00
Water quality - Determination of ammonium nitrogen - Method by flow analysis (CFA and FIA) and spectrometric detection (ISO 11732:2005)
Devices to prevent pollution by backflow of potable water - Air gaps with minimum circular overflow (verified by test or measurement) - Family A, type G
€58.00
Devices to prevent pollution by backflow of potable water. Pipe interrupter with permanent atmospheric vent DN 10 to DN 20. Family D, type C
€62.00
Devices to prevent pollution by backflow of potable water. Air gap with circular overflow (restricted). Family A-Type F
Products used for treatment of water intended for human consumption - Silica sand and silica gravel
€60.00
Devices to prevent pollution by backflow of potable water. Automatic diverter. Family H, type C.
Water quality - Determination of suspended solids - Method by filtration through glass fibre filters
Semantics for groundwater data interchange
€98.00
Water quality - Determination of the threshold odour number (TON) and threshold flavour number (TFN)
€75.00
Water quality - Toxicity test for assessing the inhibition of nitrification of activated sludge microorganisms (ISO 9509:2006)
€69.00
Water quality - On-line sensors/analysing equipment for water - Specifications and performance tests (ISO 15839:2003)
€83.00
Plastics - Evaluation of disposability in waste water treatment plants - Test scheme for final acceptance and specifications
€53.00
Water quality - Test for inhibition of oxygen consumption by activated sludge for carbonaceous and ammonium oxidation (ISO 8192:2007)
Water quality - Guidance on marine biological surveys of hard-substrate communities (ISO 19493:2007)
€74.00
