容重器是測量糧食等ji的專用測量工具,容重是單位體積的重量谷物容重器,小麥、玉米容重是一升小麥、玉米在標準的容重器實驗下的重量(克)。
開始檢查容重要把儀器裝滿要檢查的比如谷物等,有三個筒子的 就xian把較長的筒子裝滿,組裝并卸到下個筒子里,用刀片形狀的那個東西把多余的谷物分開并倒出來,較后稱重量。就是容重。
玉米容重的測定方法
A1 儀器和用具
A1.1GHCS-1000型容重器(漏斗下口直徑為40mm)。
A1.2谷物選篩:上層篩孔直徑12.0mm,下層篩孔直徑3.0mm。
A2 試樣制備
從原始樣品中分樣器分出平均樣品二份,取一份平均樣品約1000g,按A1.2規定套好篩層分二次進行篩選,。取下層篩的篩上物混勻,作為測定容重的試樣。
A3 容重器安裝及測定
A3.1打開箱蓋,取出所有部件,按糧種選好漏斗。
A3.2將帶有排氣砣的容重筒放在電子秤上,空載時調節零點。
A3.2取下容量簡,將容量筒安裝在鐵板底座上,套上中間筒。
A3.4將制(zhi)備的(de)(de)試樣倒入谷物(wu)(wu)筒(tong)(tong)(tong)內,裝(zhuang)滿刮平(ping)。再(zai)將谷物(wu)(wu)筒(tong)(tong)(tong)套(tao)在中(zhong)間(jian)筒(tong)(tong)(tong)上(shang),打開(kai)(kai)漏斗(dou)開(kai)(kai)關(guan)(guan),讓玉米自由(you)下落,待 試樣全(quan)部經過中(zhong)間(jian)筒(tong)(tong)(tong)落入容(rong)量(liang)(liang)(liang)筒(tong)(tong)(tong)后,關(guan)(guan)閉漏斗(dou)開(kai)(kai)關(guan)(guan)。用手握住谷物(wu)(wu)筒(tong)(tong)(tong)與中(zhong)間(jian)筒(tong)(tong)(tong)的(de)(de)接全(quan)處,將插片(pian)準確地插入豁口(kou)槽(cao)中(zhong),依次取下谷物(wu)(wu)筒(tong)(tong)(tong),拿起中(zhong)間(jian)筒(tong)(tong)(tong)和容(rong)量(liang)(liang)(liang)筒(tong)(tong)(tong),倒凈插片(pian)上(shang)多(duo)余的(de)(de)試樣,抽出插片(pian),取下容(rong)量(liang)(liang)(liang)筒(tong)(tong)(tong)上(shang)的(de)(de)鐵板底座,將容(rong)量(liang)(liang)(liang)筒(tong)(tong)(tong)放在電(dian)子秤上(shang)稱量(liang)(liang)(liang)。雙(shuang)試驗允許差不超過3g/L,求(qiu)其平(ping)均數,即為測定結果。