Increments drawn from the lot were combined to form lot sample.Then the quality samples were drawn after further mixing and deduction.The increments were crushed to around 5-10mm , then well mixed and reduced by coning and quartering method to obtain reduced lot samples of about 5 kilograms for moisture quality test.

熱心網友

(從產品的不同位置)取少量樣品,將他們混合形成批樣。然后經混合和削減形成質量樣品。將(取出的)少量樣品打碎至5-10毫米,混合均勻后堆成錐形用四分法取得批樣,得到大約5kg批樣,進行含水質量檢測。這是固體取樣的一種方法:比如煤,從煤廠的不同位置取回少量的煤混合,打碎,然后將其堆成圓錐形,將其削減四分之一,剩下的再混合再堆,再減少四分之一,如此反復,直到到達所需重量,再送去檢測。這樣得到的樣品比較有代表性。