BD-PSZ130石油產(chǎn)品和潤(rùn)滑劑酸值測(cè)定儀是依據(jù)國(guó)家標(biāo)準(zhǔn)GB/T 7304-2000《石油產(chǎn)品和潤(rùn)滑劑酸值測(cè)定法》設(shè)計(jì)制造的，適用于測(cè)定能夠溶解于甲苯和異丙醇混合溶劑的石油產(chǎn)品和潤(rùn)滑劑中的酸性組分。
概要：
試樣溶解在含有少量水的甲苯異丙醇混合溶劑中，以氫氧化鉀異丙醇標(biāo)準(zhǔn)溶液為滴定劑進(jìn)行電位滴定，所用的電極對(duì)為玻璃指示電極甘汞參比電極，在手繪或自動(dòng)繪制的電位滴定劑量的曲線上僅把明顯突躍點(diǎn)作為終點(diǎn)，如果沒(méi)有明顯突躍點(diǎn)，則以相應(yīng)的新配非水酸性或堿性緩沖溶液的電位值作為滴定終點(diǎn)。
技術(shù)指標(biāo)：
1.測(cè)量范圍：MV：0~±1999 PH：0~14.00
2.測(cè)量精度：MV：0.1%F.S PH：±0.01
3.控制精度：±0.03PH或±3mv
4.輸入抗阻：不小于1×1012Ω
使用意義和用途：
1.新的或使用后的油品酸性組分指的是添加劑或油品在使用過(guò)程中的降解產(chǎn)物如氧化產(chǎn)物等，這些物質(zhì)可以通過(guò)用堿滴定而測(cè)得其相對(duì)含量，酸值就是在條件下測(cè)定這些物質(zhì)在油品中的量，酸值可以用于控制潤(rùn)滑油的質(zhì)量，有時(shí)也可用于測(cè)定潤(rùn)滑油在使用過(guò)程中的降解情況，但酸值作為潤(rùn)滑油報(bào)廢指標(biāo)必須通過(guò)經(jīng)驗(yàn)來(lái)確定
2.由于各種各樣的氧化產(chǎn)物都會(huì)影響酸值，同時(shí)有機(jī)物在腐蝕條件下變化也很大，所以此方法不能用于預(yù)測(cè)油品在使用過(guò)程中的腐蝕性能，例如酸值和油品對(duì)金屬的腐蝕程度之間沒(méi)有必然的聯(lián)系。
Product Description: PSZ130petroleum products ａnd lubricants - Determination of acid numberinstrument is designed and manufactured according to the national standard GB / T 7304-2000"petroleum products ａnd lubricants - Determination of acid number - Law applicable to the determinationcan be dissolved in a mixture of toluene and isopropanolthe solvent petroleum products ａnd lubricants in the acidic components.
Summary:
The sample was dissolved in a mixed solvent of isopropyl alcohol in toluene containing a small amount ofwater, isopropanol standard solution of potassium hydroxide as the titrant potentiometric titration, thepair of electrodes used in the indicator electrode is a glass calomel reference electrode, in the hand-painted or automatically potentiometric titration dose curve drawn only significant jump point as the end point, if no significant jump in the corresponding new with non-aqueous acidic or alkaline buffer solutionpotential value as of the end of the titration.
Technical Specifications:
(1) Measuring range: MV: 0 to ± 1999 PH: 0 to 14.00
(2) measurement accuracy: MV: 0.1% FS PH: ± 0.01
3. The control accuracy: ± 0.03PH, or ± 3mv of
Input resistance: not less than 1 × 1012 ohm
Use the meaning and purpose:
1 after new or used oil acidic component refers to additives or oil degradation products such as oxidation products during use, these substances can be measured by titration with a base, obtaining the relative content, acid number is in determination of these substances in the quantity of oil, acid number can be used to control the quality of the lubricating oil is sometimes also be used for the determination of thedegradation of the lubricant during use under specified conditions, but the acid number as a lubricant oilof end-of-life indicators must experience determined
2 due to the various oxidation products will affect the acid value, while organics under corrosive conditions may also vary widely, so this method can not be used to predict the corrosion of the oil during use, e.g. the acid and oil on is no necessary link between the degree of corrosion of metals.
