規(guī)格型號：JOYN-CXW-6
產(chǎn)品說明：測試樣品數(shù)：6個/次
【粗纖維測定儀】：是依據(jù)目前常用的酸堿消煮法消煮樣品，并進(jìn)行重量測定來得到試樣的粗纖維含量的儀器。
采用濃度準(zhǔn)確的酸和堿，在特定條件下消煮樣品，再用乙醇除去可溶物質(zhì)，經(jīng)高溫灼燒后扣除礦物質(zhì)的量，所含量稱粗纖維。它不是個確切的化學(xué)實(shí)體，只是在強(qiáng)制規(guī)定的條件下測出的概略成份，其中以纖維素為主，還有少量半纖維素和木質(zhì)素。
【粗纖維測定儀的注意事項(xiàng)】：
１、儀器由于經(jīng)常與酸、堿及水接觸，且儀器通有220V交流電，所以實(shí)驗(yàn)室插座定要有良好的接地。
２、每次用完儀器后，應(yīng)用濾紙將抽濾底座內(nèi)的水吸干。
３、當(dāng)坩鍋在500℃的高溫爐內(nèi)灼燒1小時后，不要馬上取出坩堝，小心爐內(nèi)溫度與爐外溫度的溫差太大易使坩鍋炸裂。
４、操作提升手柄時，注意要小心緩慢提升，與此同時要注意上下玻璃口對正，防止操作不當(dāng)而造成儀器損壞。
５、當(dāng)發(fā)現(xiàn)抽濾比較困難，建議使用真空泵抽濾，見示意圖。
６、次使用不熟悉的情況下可用蒸餾水做，然后抽掉開始做實(shí)驗(yàn)。
７、使用完畢儀器之后，好將燒瓶內(nèi)酸、堿倒出，再在瓶中加自來水，將坩鍋裝上，將水分別加入坩鍋內(nèi)，然后分別抽掉，以清洗管路。
８、在得到測試結(jié)果后，為了清除坩鍋砂芯中的樣品殘留物，應(yīng)將坩鍋放入30%-50%左右濃度的鹽酸溶液中浸泡幾個小時，然后取出用水清洗后烘干，以備下次使用。
９、操作時候請注意安全，加酸堿時候帶厚的乳膠手套和布手套，防止酸堿碰到手上。取出坩堝時候，帶上布手套，小心燙傷手。
【數(shù)顯粗纖維測定儀技術(shù)參數(shù)】：
型號：JOYN-CXW-6
測定對象：各種糧食、飼料、谷物、食品及其他農(nóng)副產(chǎn)品中粗纖維的含量
測試樣品數(shù)：6個/次
重復(fù)性誤差：粗纖維含量在10%以下，對值誤差≤0.4
粗纖維含量在10%以上，相對誤差≤4%
測定時間：在儀器上所需約90min（包括酸30分、堿30分，抽濾和洗滌約30分）
電源：AC220V/50HZ
功率：3.3KVA
體積：540×450×670mm
重量：28kg
1. Due to the constant contact with acid, alkali and water, and the instrument has 220V ac, the laboratory socket must have a good grounding.
2. After each use of the instrument, apply the filter paper to drain the water from the filter base.
3, when the crucible in 500 ℃ high temperature furnace burning after 1 hour, don't immediately remove the crucible, be careful in furnace temperature and furnace temperature of the temperature difference is too big to make the crucible.
4. When handling the lifting handle, pay attention to the slow improvement of the handle, while paying attention to the right of the upper and lower glass mouth to prevent improper operation and damage the instrument.
5. When it is difficult to extract filter, it is recommended to use vacuum pump to filter and see the schematic diagram.
6. Use distilled water for the first time when you are not familiar with it, and then draw off to do the experiment.
After finished 7, using the instrument, it is best to the flasks acid, alkali poured out, again add tap water in the bottle, the crucible mount, adding water respectively in the crucible, and then removed respectively, with washing line.
8, after get the test results, in order to remove residues in the samples, the crucible core crucible should be in the 30% - 50% concentration of hydrochloric acid solution soak for a few hours, and then after drying, water washing for next time use.
9. Please pay attention to safety during operation, with thick latex gloves and gloves to prevent acid and alkali from touching the hands. When taking out the crucible, wear a cloth glove and be careful to burn your hands.
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