色色新妈妈电影

鶴壁市華通分析儀器有限公司

htyq@hbhtyq.com

産品目錄 CATALOG

技術文章 當前位置：首頁 > 技術文章 > 詳細內容

煤炭水分測定儀測定步驟

发布时间：2012-06-06 点击次数：1475次

測定步驟

方法1

用已知重量的幹燥、清潔的淺盤稱取煤樣500g（稱准到1g），並將盤中的煤樣均勻的攤平。將裝有沒樣的淺盤放入預先鼓風並加熱到105-110℃的幹燥箱中，在不斷鼓風的條件下煙煤幹燥2-2.5h，無煙煤幹燥3-3.5h。再從幹燥箱中取出淺盤，趁熱稱重。然後進行檢查性的試驗，每次試驗30min，直到煤樣的減量不超過1g或者重量有所增加時爲止。在後一情況下，應采用增重錢的一次重量作爲計算依據。

注：將稱好煤樣的盤子放入幹燥箱之前3-5min開始鼓風。

方法2

用已知重量的幹燥、清潔的淺盤稱取煤樣500g（稱准到1g），並將淺盤中的煤樣均勻的攤平。

將裝有煤樣的淺盤放入預先鼓風並加熱到150-160℃的幹燥箱中，在145±5℃和不斷鼓風的條件下，煙煤幹燥30min，無煙煤幹燥1h，褐煤幹燥1.5h。再從幹燥箱中取出淺盤，趁熱稱重。然後進行檢查性的試驗，每次試驗15min，直到煤樣的減量不超過1g或者重量有所增加爲止。在後一情況下，應采用增重前的一次重量作爲計算依據。

方法3

用已知重量的幹燥、清潔的稱量瓶(1.5)稱取煤樣10～12g(稱准到0.01g)並將煤樣輕輕晃動，使之鋪平。打開稱量瓶蓋，將裝有煤樣的稱量瓶放入預先鼓風並加熱到145±5℃的幹燥箱中，在不斷鼓風的條件下煙煤幹燥30min，褐煤幹燥45min，無煙煤幹燥60min，再將稱量瓶從幹燥箱中取出，立即蓋上蓋，在空氣中冷卻約5min後，移入幹燥器(1.4)中繼續冷卻至室溫(約30min)再稱重。然後進行檢查性的試驗，每次試驗15min，直到煤樣的減量不超過0.01g或者重量有所增加時爲止。在後一情況下，應采用增重前的一次重量作爲計算依據。

經營産品

聯系我們

地址：金山工業園區淇山南路85號
電話：0392-2643677
郵箱：htyq@hbhtyq.com
傳真：0392-3253111
郵編：458030

鶴壁市華通分析儀器有限公司管理後台 GoogleSitemap

豫公网安备 41061102000020号

備案號：豫ICP備08104875號-4

聯系人：龍經理
13939283560

The great ship steamed onward, day after day and night after night. There was no storm to break the monotony; no sail showed itself on the horizon; no one left the steamer, and no new-comers appeared; nobody saw fit to quarrel with any one else; and there was not a passenger who showed a disposition to quarrel with his surroundings. Stories were told and songs were sung, to while away the time; and, finally, on the twentieth day, the captain announced that they were approaching land, and the voyage would soon be over. "I could go on with a long account of the tortures in China, but they are not very pleasant reading, and, besides, some of them are too horrible for belief. I will stop with the torture known as 'the hot-water snake,' which consists of a coil of thin tubing of tin or pewter in the form of a serpent. One of these coils is twisted around each arm of the victim, and another around his body, in such a way that the head of the snake is higher than any other part. Then they pour boiling water into the mouth of the snake, and the flesh of the prisoner is burned and scalded in the most terrible manner. This punishment is said to be used rarely, and only[Pg 374] on persons accused of crimes against the government. It is too horrible to be popular, even among the most cold-blooded people in the world. "No, Lieutenant, she nearly cried. Oh, I wish we were on some dangerous errand to-night, instead of just camp and bed!" One glance at the dim mirror and Leona Lalage flew down the corridor. The music of the band was like the sound of mocking demons in her ears. As she flew up the stairs she could see the blank windows of the Corner House staring dreadfully in. Then she locked the door behind her and flung herself headlong down on the bed. . . . Surely they were a long time getting that hot water. In such a case as this hurry was everything. Bruce crept from the room and looked over the banisters. The whole place was in darkness! "Just a moment," Leona said eagerly. "Suppose I deny that. How are you going to prove that I did so?" It was weary work sitting there and pretending to drink, but patience has its reward at last. Gradually the shy swindlers became accustomed to the seedy shop assistant, who even went out of his way to give them hints as to credulous firms. It seemed to Prout that he knew all the gang at last save one. 162 "I told you to go," she repeated, raising her brows. "Come here, Shorty, you dirty little rascal," said the Deacon, assuming a severely maternal tone, at which Si laughed feebly but cheerily, "and let me wash your face and comb your hair." a-courtin', as you will know if ever you was a widower, and he "Could the gunner knock a man's head off, or one of his legs, just as he pleased?" "But—" "You can't go by yourself—he wudn't like it." "Not if we stick to the farm. Did you notice that ring on his little finger?" "Can't you mortgage?" HoME 色色新妈妈电影 ENTER NUMBET 00101sexblvd.org.cn
gangdfnet.com.cn
mglarc.org.cn
mingblog.com.cn
oskwjfe9.com.cn
www.q31.com.cn
qondan.com.cn
www.rchess.com.cn
sp3lekr7.com.cn
www.xaricom.org.cn