DIN 38414-22:2000 德国对水、废水和淤泥的标准检验方法.淤泥和沉积物(S组).第22部分:冻结法测定干渣及淤泥冻干物的制备(S22)
German standard methods for the examination of water, waste water and sludge - Sludge and sediments (group S) - Part 22: Determination of dry residue by freezing and preparation of the freeze dried mass of sludge (S 22)