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acid number [value] 酸值。

Peg and superfluous aa reaction by complete concatenation method , the esterify production “ esterify water “ and acid number were mensurated , it shows that the esterify reaction would be processed under 100 esterify temperature and with amine accelerantthe tide of esterify reaction was substantiated by ir . in the ir spectrum , the characteristic peak of hydroxy of peg and carboxyl of aa were weakened . and the ester link of peg was reinforce . the “ esterify water “ was increased gradually and the acid number of esterify production was debased gradually along with the extent of esterify time and the augmentation of molecular weight of peg 通過聚乙二醇與過量的丙烯酸采用全連續法進行反應,測定酯化產物“酯化水”和酸值等宏觀手段反映出在胺類促進劑、 100的酯化溫度等條件下的酯化進程,而利用紅外光譜( ir )分析所反映的聚乙二醇的羥基和丙烯酸的羧基特征峰減弱,而pea的酯基特征峰加強等特征進一步證實了宏觀手段所表現出來的酯化趨勢:隨著酯化時間的延長和聚乙二醇分子量的增大,產生的“酯化水”逐漸增加,酯化產物的酸值逐漸降低;從酯化時間看,當反應時間達到300min時,酯化物的酸值達到最小,而從ir分析來看,酯化物pea4的羥基峰在300min時減弱到最小, pea23在120min時羥基峰的表現出酯化基本完全。

acid pad

Peg and superfluous aa reaction by complete concatenation method , the esterify production “ esterify water “ and acid number were mensurated , it shows that the esterify reaction would be processed under 100 esterify temperature and with amine accelerantthe tide of esterify reaction was substantiated by ir . in the ir spectrum , the characteristic peak of hydroxy of peg and carboxyl of aa were weakened . and the ester link of peg was reinforce . the “ esterify water “ was increased gradually and the acid number of esterify production was debased gradually along with the extent of esterify time and the augmentation of molecular weight of peg 通過聚乙二醇與過量的丙烯酸采用全連續法進行反應,測定酯化產物“酯化水”和酸值等宏觀手段反映出在胺類促進劑、 100的酯化溫度等條件下的酯化進程,而利用紅外光譜( ir )分析所反映的聚乙二醇的羥基和丙烯酸的羧基特征峰減弱,而pea的酯基特征峰加強等特征進一步證實了宏觀手段所表現出來的酯化趨勢:隨著酯化時間的延長和聚乙二醇分子量的增大,產生的“酯化水”逐漸增加,酯化產物的酸值逐漸降低;從酯化時間看,當反應時間達到300min時,酯化物的酸值達到最小,而從ir分析來看,酯化物pea4的羥基峰在300min時減弱到最小, pea23在120min時羥基峰的表現出酯化基本完全。

Common test methods for insulating and sheathing materials of electric cables - part 5 : methods specific to filling compounds - section 1 : drop point - separation of oil - lower temperature brittleness - total acid number - absence of corrosive components - permittivity at 23 centigrade degrees - d . c . resistivity at 23 centigrade degrees and 100 centigrade degrees 電纜絕緣和鎧裝材料的通用試驗方法.第5部分:填充復合物的專用方法.第1節:滴點.油分離.較低溫脆性.總酸數值.不腐蝕組分. 23下的電容率. 23和100下的直流電阻率

When the reaction time was soomin , the acid number of esterify production was least . it shows that hydroxy peak of pea4 would be least at 300min , the hydroxy peak of pea23 was almost disappeared at 120min . in macroscopical side , the acid number can only indicate that superflous aa was reduced along with esterify reaction and pumping water 因此,宏觀手段和微結構表征表現的酯化反應趨勢是一致的,而宏觀上的酸值只能反應過量丙烯酸的隨著酯化反應和除水作用而減少,并不能完全真實反映酯化進程,而微觀上進一步證實了不同分子量的聚乙二醇的酯化所需的酯化時間隨著分子量的增大而減少。

Common test methods for insulating and sheathing materials of electric cables ; part 5 : methods specific to filling compounds ; section one : drop point ; separation of oil ; lower temperature brittleness ; total acid number ; absence of corrosive components ; permittivity at 23 ; d . c . resistivity at 23 and 100 電纜絕緣和護套材料的通用試驗方法.第5部分:填充復合物的專用方法.第1節:滴點油分離較低溫脆性總酸值無腐蝕性成分.在23時的電容率在23和100時的直流電阻率

Insulating and sheathing materials of electric and optical cables - common test methods - part 5 - 1 : methods specific to filling compounds - drop point - separation of oil - lower temperature brittleness - total acid number - absence of corrosive components - permittivity at 23 oc - d . c . resistivity at 23 oc and 100 oc 電纜和光纜的絕緣和護套材料.通用試驗方法.第5 - 1部分:填充復合物的專用方法.滴點.油的分離.較低溫脆性.總酸值.無腐蝕性成分. 23時的介電常數. 23和100的直流電阻率

Insulating and sheathing materials of electric and optical fibre cables - common test methods - methods specific to filling compounds - drop point - separation of oil - lower temperature brittleness - total acid number - absence of corrosive components - permittivity at 23 c - d . c . resistivity at 23 c and 100 c 電纜的絕緣和護套材料.通用試驗方法.填充復合物的專用方法.滴點.油分離.低溫脆性.總酸值.無腐蝕性成分. 23時的電容率. 23和100時的直流電阻率

Common test methods for insulating and sheathing materials of electric cables . part 5 : methods specific to filling compounds . section one : drop - point - separation of oil - lower temperature brittleness - total acid number - absence of corrosive components - permittivity at 23 - d . c . resistivity at 23 and 100 電纜絕緣和護套材料通用試驗方法第5部分:填充膏專用試驗方法第1節:滴點-油分離-低溫脆性-總酸值-腐蝕性- 23時的介電常數- 23和100時的直流電阻率

It can remove water content , gas , impurity in oil as well as polar material in degraded oil , reduce acid number , medium loss number , remove free carbon and enhance withstand voltage and quality to guarantee operation of electric equipment 可作為電力變壓器大修專用過濾設備,不但能高效去除油中的水分氣體雜質,而且能快速除去老化變質油中的極性物質,降低油液酸值,介損值,除去游離碳,提高油的耐壓強度和油的質量,確保電力設備正常運行。

It can not only remove gas , water and impurity , but also free carbon , decolor , deacidify , medium loss reducing and resume utilization property of oil to achieve treated oil up to national standard on water content , gas content , ph number and acid number , ect 它不僅能脫氣脫水除雜質,而且還具有去除絕緣油中的游離碳脫色除酸降介損的功能,恢復油的使用性能使處理后油中的含水量含氣量ph值酸值等均符合國家標準。

Insulating and sheathing materials of electric and optical cables - common test methods - part 5 - 1 : methods specific to filling compounds - drop - point - separation of oil - lower temperature brittleness - total acid number - absence of corrosive compo 電纜和光纜用絕緣和護套材料.通用試驗方法.第5 - 1部分:填充復合物的專用方法.滴點.油分離.較低溫脆性.總酸值.無腐蝕性成分. 23 ?時的電容率. 23 ?和100 ?時的直流電阻率

Their structures were confirmed by ir , and the properties of these surfactants such as acid number , interfacial tension , and critical micelle concentration and so on were studied 通過紅外光譜確定了產物的結構,并對有機硼表面活性劑的酸值、表面張力以及臨界膠束濃度等性能進行了研究。

Special adsorption refining agent , remove free carbon , water - soluble acid , flash point , acid number and medium loss up to the standard , resume performance of oil 采用特制的吸附精制劑,有效去除油中的游離碳水容性酸,使油的閃點酸值介損值均達到標準,恢復油的性能。

Should i consider adding the acid number test to my predictive maintenance program ? maybe you will give me any good suggestion . thank you a lots 中文提問:請問各位老師,我們工廠在設計設備預維護程序的時候是否應該考慮把酸值的檢測也考慮進去呢?謝謝大家的好心幫助和指導。

Standard test method for determination of acidity as free fatty acids acid number in the absence of ammonium or triethanolamine soaps in sulfonated and sulfated oils 磺酸化或硫酸化油中不存在銨或三乙醇胺皂時酸度作為游離脂肪酸酸值測定的標準試驗方法

Methods of test for petroleum and its products - petroleum products - determination of acid number - semi - micro colour - indicator titration method 石油及石油產品的試驗方法.石油產品.第431部分:酸值測定.半微量顏色指示滴定法

Acid number ( an ) milligrams of koh required in tests to neutralize all the acidic constituents present in a l g sample of a petroleum product 酸值( an )也稱中和值,指中和1克油品試樣中所有酸性物質所需氫氧化鉀的毫克數。

Acid number ( an ) milligrams of koh required in tests to neutralize all the acidic constituents present in a lg sample of a petroleum product 酸值( an )也稱中和值,指中和1克油品試樣中所有酸物質所需氫氧化甲的毫克數。

Standard test method for determination of the acidity as free fatty acids acid number in the presence of ammonium or triethanolamine soaps 存在銨或三乙醇胺皂時酸度作為游離脂肪酸值測定的標準試驗方法