油品铜片腐蚀测试方法

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汽柴油铜片腐蚀快速试验法

汽柴油铜片腐蚀快速试验法
中 国 石 油 兰 州 润 滑 油 研 发 中 心
PetroChina Lanzhou Lubricant R&D Institute
汽油、柴油铜片腐蚀试验法 快速法
6 试验步骤
6.1
把完全清澈、无悬浮水的试样倒入清洁、干燥的试管中30 mL刻
线处,并将经过最后磨光、干净的铜片在1min内浸入该试管的试样中。 将该试管小心地滑入试验钢弹中,并把弹盖旋紧,然后将试验钢弹完 全浸入已维持在90℃±1℃的恒温浴中恒温。 6.2 恒温30min后,小心地取出试验钢弹,并用自来水冲洗试验钢弹
测定。
中 国 石 油 兰 州 润 滑 油 研 发 中 心
PetroChina Lanzhou Lubricant R&D Institute
汽油、柴油铜片腐蚀试验法 快速法
日常操作注意事项

打磨合格的铜片对试验结果至关重要 磨光后的铜片禁止用手接触 浴温要保持在90℃±1℃范围内 所用试剂应经铜片试验合格后使用 试管小心滑入试验弹后,必须旋紧弹盖 从恒温浴中取出的试验弹用自来水冷却到 室温并擦干后再打开
ASTM D4814 汽油 ASTM D975 柴油 EN 228 汽油 EN 590 柴油 JIS K2202 汽油 JIS K2204 柴油 汽油 柴油 GB 1793 车用汽油 GB 252 轻柴油 GB 19147 车用柴油
中 国 石 油 兰 州 润 滑 油 研 发 中 心
PetroChina Lanzhou Lubricant R&D Institute
汽油、柴油铜片腐蚀 快速试验法介绍
兰州润滑油研究开发中心 2011年5月
石油产品的腐蚀性 石油产品的腐蚀性
金属接触

油品腐蚀测定实验报告(3篇)

油品腐蚀测定实验报告(3篇)

第1篇一、实验目的本实验旨在通过铜片腐蚀试验,测定不同油品对铜片的腐蚀程度,了解油品的腐蚀性能,为油品的选择和使用提供参考。

二、实验原理铜片腐蚀试验是一种定性方法,主要用于测定油品中腐蚀金属的活性硫化物和元素硫。

试验原理是将磨光的标准尺寸的铜片浸入油中,在一定温度和时间条件下保持,然后取出与未浸油的铜片比较其表面颜色,根据浸过油试片所呈现的绿色、黑色、棕黑色或钢灰色斑点确定腐蚀级别。

三、实验仪器与试剂1. 仪器:铜片腐蚀测定仪、恒温水浴锅、电子天平、计时器、移液管、玻璃试管、标准色板等。

2. 试剂:待测油品、蒸馏水、标准铜片。

四、实验步骤1. 准备工作:将标准铜片用蒸馏水洗净、晾干,并置于干燥器中保存。

2. 标准溶液制备:按照实验要求,将标准油品加入试管中,用移液管移取一定量的油品至试管中,再加入适量的蒸馏水,充分混合。

3. 铜片处理:将标准铜片用蒸馏水洗净、晾干,然后放入油浴锅中,调整温度至规定值。

4. 浸泡:将制备好的标准溶液倒入试管中,将铜片浸入溶液中,计时。

5. 取出:根据实验要求,保持铜片在溶液中的时间,然后取出铜片。

6. 观察与记录:将取出后的铜片与未浸油的铜片进行比较,观察表面颜色变化,记录腐蚀级别。

7. 结果分析:根据标准色板,确定铜片的腐蚀级别。

五、实验结果与分析1. 实验结果:根据实验观察和记录,得到不同油品的腐蚀级别如下:(1)油品A:腐蚀级别为1级(2)油品B:腐蚀级别为2级(3)油品C:腐蚀级别为3级2. 结果分析:通过对比不同油品的腐蚀级别,可以发现,油品A的腐蚀性能最好,油品C的腐蚀性能最差。

这可能与油品的成分、添加剂等因素有关。

六、实验结论本实验通过对不同油品进行铜片腐蚀试验,得出以下结论:1. 铜片腐蚀试验是一种有效的定性方法,可以用于测定油品的腐蚀性能。

2. 油品的腐蚀性能与其成分、添加剂等因素有关。

3. 在选择和使用油品时,应考虑其腐蚀性能,以避免对设备造成损害。

石油产品中铜片腐蚀试验测定器的操作规程

石油产品中铜片腐蚀试验测定器的操作规程

石油产品中铜片腐蚀试验测定器的操作规程
一、检查仪器的接地线,传感器和温度计是否正常。

二、向浴槽内加水至溢流管开始流水为止,然后打开放
水阀放出2-3升水。

三、开启电源开关,开启搅拌开关,通过温控仪拨盘设
定所需温度,加热管开始加温,到设定温度点时,即开始自动恒温。

四、环流冷凝器进入管用软管与自来水管连接,溢流管
下端出水管接软管通下水。

当浴槽温度升高出现水
蒸气时,打开自来水,以每分钟2-3升流量的水流
进冷凝器,以使水蒸气回流。

ASTM 铜片腐蚀测定法

ASTM 铜片腐蚀测定法

Designation:D130–94(Reapproved2000)e1(21262°F),or both,and having suitable supports to hold the test tubes in a vertical position and immersed to a depth of about 100mm (4in.).Either water,oil,or aluminum block baths are suitable.5.2Copper Strip Corrosion Test Bomb ,constructed of stainless steel according to the dimensions as given in Fig.1,and capable of withstanding a test pressure of 100psi (689kPa).Alternative designs for the bomb cap and synthetic rubber gasket may be used provided that the internal dimen-sions of the bomb are the same as those shown in Fig.1.Provide a 25by 150-mm test tube as a liner for holding the sample.5.2.1Provide liquid baths capable of being maintained at 4061°C (10462°F)or 10061°C (21262°F),or both,and having suitable supports to hold the test bomb in a vertical position.The bath must be deep enough so that the entire bomb will be submerged during the test.As the bath medium,use water or any other liquid which can be satisfactorily controlled at the specified test temperature.5.3Thermometers ,total immersion,for indicating the re-quired test temperature,with smallest graduations of 1°C (2°F)or less.No more than 25mm (1in.)of the mercury thread should extend above the surface of the bath at the test temperature.The ASTM 12C (12F)or IP 64C (64F)thermom-eter is suitable.5.4Polishing Vise ,for holding the copper strip firmly without marring the edges while polishing.Any convenient type of holder (see Appendix)may be used provided that the strip is held tightly and that the surface of the strip being polished is supported above the surface of the holder.5.5Viewing Test Tubes ,flat glass test tubes,are convenient for protecting corroded strip for close inspection or storage (see Appendix).6.Materials6.1Wash Solvent —Any volatile,sulfur-free hydrocarbon solvent may be used provided that it shows no tarnish at allwhen tested at 50°C (122°F).Knock test grade iso octane is a suitable solvent and should be used in case of dispute.(Warning —Extremely flammable,see A2.1.)6.2Polishing Materials —Silicon carbide grit paper of vary-ing degrees of fineness including 65-µm (240-grit)paper or cloth;also a supply of 105-µm (150-mesh)silicon carbide grain and pharmaceutical grade absorbent cotton (cotton wool).6.3Copper Strips :6.3.1Specification —Use strips 12.5mm (1⁄2in.)wide,1.5to 3.0mm (1⁄16to 1⁄8in.)thick,cut 75mm (3in.)long from smooth-surfaced,hard-temper,cold-finished copper of 99.9+%purity;electrical bus bar stock is generally suitable (see Appendix).The strips may be used repeatedly but should be discarded when the surfaces become deformed on handling.6.3.2Surface Preparation —Remove all surface blemishes from all six sides of the strip with silicon carbide paper of such degrees of fineness as are needed to accomplish the desired results efficiently.Finish with 65-µm (240-grit)silicon carbide paper or cloth,removing all marks that may have been made by other grades of paper used previously.Immerse the strip in wash solvent from which it can be withdrawn immediately for final preparation (polishing)or in which it can be stored for future use.6.3.2.1As a practical manual procedure for surface prepa-ration,place a sheet of the paper on a flat surface,moisten it with kerosine or wash solvent,and rub the strip against the paper with a rotary motion,protecting the strip from contact with the fingers with an ashless filter paper.Alternatively,the surface of the strip can be prepared by use of motor-driven machines using appropriate grades of dry paper or cloth.6.3.3Final Preparation —Remove a strip from the wash solvent.Holding it in the fingers protected with ashless filter paper,polish first the ends and then the sides with the 105-µm (150-mesh)silicon carbide grains picked up from a clean glass plate with a pad of cotton (cotton wool)moistened with a drop of wash solvent.Wipe vigorously with fresh pads of cotton (cotton wool)and subsequently handle only with stainless steel forceps;do not touch with the fingers.Clamp in a vise and polish the main surfaces with silicon-carbide grains on absor-bent cotton.Do not polish in a circular motion.Rub in the direction of the long axis of the strip,carrying the stroke beyond the end of the strip before reversing the direction.Clean all metal dust from the strip by rubbing vigorously with clean pads of absorbent cotton until a fresh pad remains unsoiled.When the strip is clean,immediately immerse it in the prepared sample.6.3.3.1It is important to polish the whole surface of the strip uniformly to obtain a uniformly stained strip.If the edges show wear (surface elliptical)they will likely show more corrosion than the center.The use of a vise (see Appendix)will facilitate uniform polishing.6.3.3.2It is important to follow the order of preparation with the correctly sized silicon carbide material as described in 6.3.2and 6.3.3.The final preparation is with 105-µm silicon carbide grains.This is a larger grain size than the 65micron paper used in the surface preparation stage.The reason for this use of larger silicon carbide grains in the final preparation is to produce asperities (controlled roughness)on the surface oftheFIG.1Copper Strip Corrosion TestBombcopper which acts as sites for the initiation of corrosion reactions.7.Corrosion Standards7.1ASTM Copper Strip Corrosion Standards 4consist of reproductions in color of typical test strips representing in-creasing degrees of tarnish and corrosion,the reproductions being encased in plastic in the form of a plaque.7.1.1Keep the plastic-encased printed ASTM Copper Strip Corrosion Standards protected from light to avoid the possi-bility of fading.Inspect for fading by comparing two different plaques,one of which has been carefully protected from light (new).Observe both sets in diffused daylight (or equivalent)first from a point directly above and then from an angle of 45°.When any evidence of fading is observed,particularly at the left-hand end of the plaque,it is suggested that the one that is the more faded with respect to the other be discarded.7.1.1.1Alternatively,place a 20-mm (3⁄4-in.)opaque strip (masking tape)across the top of the colored portion of the plaque when initially purchased.At intervals remove the opaque strip and observe.When there is any evidence of fading of the exposed portion,it is suggested that the standards be replaced.7.1.1.2These plaques are full-color reproductions of typical strips.They have been printed on aluminum sheets by a 4-color process and are encased in plastic for protection.Directions for their use are given on the reverse side of each plaque.7.1.2If the surface of the plastic cover shows excessive scratching it is suggested that the plaque be replaced.8.Samples8.1It is particularly important that all types of fuel samples,which pass a low-tarnish strip classification,be collected in clean,dark glass bottles,plastic bottles,or other suitable containers that will not affect the corrosive properties of the fuel.Avoid the use of tin plate containers for collection of samples,since experience has shown that they may contribute to the corrosiveness of the sample.8.2Fill the containers as completely as possible and close them immediately after taking the sample.Take care during sampling to protect the samples from exposure to direct sunlight or even diffused daylight.Make the test as soon as possible after receipt in the laboratory and immediately after opening the container.8.3When suspended water (haze)is observed in the sample,dry by filtering a sufficient volume of sample through a medium rapid qualitative filter,into the prescribed clean,dry test tube.Carry out this operation in a darkened room or under a light-protected shield.8.3.1Contact of the copper strip with water before,during,or after the completion of the test run,will cause staining,making it difficult to evaluate the strips.9.Procedure9.1Those product classes,to which given procedural varia-tions are intended to be applied,are listed below.Some productclasses,being quite broad,may be tested by more than one set of conditions;in such cases the copper strip quality require-ment for a given product should be limited to a single set of conditions.The conditions of time and temperature given below are those most commonly used and are quoted in the ASTM specifications for these products where such specifica-tions exist.However,other conditions can also be used as and when required by specifications or by agreement between parties.9.1.1For aviation gasoline,and aviation turbine fuel —Place 30mL of sample,completely clear and free of any suspended or entrained water (see 8.3)into a chemically clean,dry 25by 150-mm test tube,and within 1min after completing the final preparation (polishing),slide the copper strip into the sample tube.Carefully slide the sample tube into the test bomb (Fig.1)and screw the lid on pletely immerse the bomb in a boiling water bath at 10061°C (21262°F).After 2h 65min in the bath,withdraw the bomb and immerse for a few minutes in tap water.Open the bomb,withdraw the test tube and examine the strip as described in 9.2.9.1.2For natural gasoline —Carry out the test exactly as described in 9.1.1but at 40°C (104°F)and for 3h 65min.9.1.3For diesel fuel,fuel oil,automotive gasoline —Place 30mL of sample,completely clear and free of any suspended or entrained water (see 8.3),into a chemically clean,dry 25by 150-mm test tube and,within 1min after completing the final preparation (polishing),slide the copper strip into the sample tube.Stopper with a vented cork and place in a bath maintained at 5061°C (12262°F)(see 5.1.1).Protect the contents of the test tube from strong light during the test.After 3h 65min in the bath,examine the strip as described in 9.2.For tests on fuel oil and diesel fuel,to specifications other than Specifications D 396and D 975,a temperature of 100°C (212°F)for 3h is often used as an alternative set of conditions.9.1.4For cleaners (Stoddard)solvent and kerosine —Carry out the test exactly as described in 9.1.3but at 10061°C (21262°F).9.1.5For lubricating oil —Tests can be carried out for varying times and at elevated temperatures other than 100°C (212°F).For the sake of uniformity,it is suggested that even increments of 50°F beginning with 250°F (or Celsius equiva-lents to the nearest whole degree)be used.9.2Strip Examination :9.2.1Empty the contents of the test tube into a 150-mL tall-form beaker,letting the strip slide in gently so as to avoid breaking the beaker.Immediately withdraw the strip with stainless steel forceps and immerse in wash solvent.Withdraw the strip at once,dry with quantitative filter paper (by blotting and not by wiping),and inspect for evidences of tarnishing or corrosion by comparison with the Copper Strip Corrosion Standards.Hold both the test strip and the standard strip plaque in such a manner that light reflected from them at an angle of approximately 45°will be observed.9.2.2In handling the test strip during the inspection and comparison,the danger of marking or staining can be avoided if it is inserted in a flat glass tube (see Appendix X1)which can be stoppered with absorbent cotton.4Conforming to Copper Development Assn.(CDA),United States of America No.110,or to British Standard (BS)1036:1952,which have properquality.10.Interpretation10.1Interpret the corrosiveness of the sample accordingly as the appearance of the test strip agrees with one of the strips of the ASTM Copper Strip Corrosion Standards.10.1.1When a strip is in the obvious transition state between that indicated by any two adjacent standard strips,judge the sample by the more tarnished Standard Strip.Should a strip appear to have a darker orange color than Standard Strip 1b ,consider the observed strip as still belonging in Classifica-tion 1;however,if any evidence of red color is observed,the observed strip belongs in Classification 2.10.1.2A claret red strip in Classification 2can be mistaken for a magenta overcast on brassy strip in Classification 3if the brassy underlay of the latter is completely masked by a magenta overtone.To distinguish,immerse the strip in wash solvent;the former will appear as a dark orange strip while the latter will not change.10.1.3To distinguish multicolored strips in Classifications 2and 3,place a test strip in a 20by 150-mm test tube and bring to a temperature of 315to 370°C (600to 700°F)in 4to 6min with the tube lying on a hot plate.Adjust to temperature by observing a high distillation thermometer inserted into a second test tube.If the strip belongs in Classification 2,it willassume the color of a silver and then a gold strip,if in Classification 3it will take on the appearance of a transparent black,etc.,as described in Classification 4.10.1.4Repeat the test if blemishes due to finger prints are observed,or due to spots from any particles of water droplets that may have touched the test strip during the digestion period.10.1.5Repeat the test also if the sharp edges along the flat faces of the strip appear to be in a classification higher than the greater portion of the strip;in this case it is likely that the edges were burnished during preparation (polishing).11.Report11.1Report the corrosiveness in accordance with one of the classifications listed in Table 1.State the duration of the test and the test temperature.12.Precision and Bias12.1In the case of pass/fail data no generally accepted method for determining precision or bias is currently available.13.Keywords13.1automotive gasoline;aviation gasoline;aviation tur-bine fuel;copper corrosion;copper strip finish;corrosiveness to copper;natural gasolineTABLE 1Copper Strip ClassificationsClassification Designation Description AFreshly polished strip ...B1slight tarnisha.Light orange,almost the same as freshly polished stripb.Dark orange 2moderate tarnish a.Claret red ... vender... c.Multicolored with lavender blue or silver,or both,overlaid on claret red ... d.Silvery...e.Brassy or gold3dark tarnish a.Magenta overcast on brassy strip... b.Multicolored with red and green showing (peacock),but no gray4corrosion a.Transparent black,dark gray or brown with peacock green barely showing ... b.Graphite or lusterless black ...c.Glossy or jet blackAThe ASTM Copper Strip Corrosion Standard is a colored reproduction of strips characteristic of these descriptions.BThe freshly polished strip is included in the series only as an indication of the appearance of a properly polished strip before a test run;it is not possible to duplicate this appearance after a test even with a completely noncorrosivesample.ANNEXES(Mandatory Information)A1.COPPER QUALITYA1.1Copper QualityA1.1.1Hard-temper,cold-finished type-(ETP)electrolytic tough pitch copper.4A2.PRECAUTIONARY STATEMENTA2.1IsooctaneHarmful if inhaled.Vapors may cause flash fire.Keep away from heat,sparks,and open flame.Keep container closed.Use with adequate ventilation.Avoid build-up of vapors and eliminate all sources of ignition,especially nonexplosion proof electrical apparatus and heaters.Avoid prolonged breathing of vapor or spray mist.Avoid prolonged or repeated skin contact.A2.2Aviation Turbine Fuel (Jet A or A-1,seeSpecification D 1655)Keep away from heat,sparks,and open flames.Keep container closed.Use with adequate ventilation.Avoid breathing vapor or spray mist.Avoid prolonged or repeated contact with skin.A2.3Gasoline (Containing Lead)Keep away from heat,sparks,and open flame.Keep container closed.Use with adequate ventilation.Avoid build-up of vapors and eliminate all sources of ignition,especially nonexplosion-proof electrical apparatus and heaters.Avoid prolonged breathing of vapor or spray mist.Avoid prolonged or repeated skin contact.A2.4Gasoline (White or Unleaded)Keep away from heat,sparks,and open flame.Keep container closed.Use with adequate ventilation.Avoid build-up of vapors and eliminate all sources of ignition,especially nonexplosion-proof electrical apparatus and heaters.Avoid prolonged breathing of vapor or spray mist.Avoid prolonged or repeated skin contact.A2.5KerosineKeep away from heat,sparks,and open flame.Keep container closed.Use with adequate ventilation.Avoid breathing vapor or spray mist.Avoid prolonged or repeated contact with skin.A2.6Stoddard SolventKeep away from heat,sparks,and open flame.Keep container closed.Use with adequate ventilation.Avoid breathing vapor or spray mist.Avoid prolonged or repeated contact with skin.APPENDIX(Nonmandatory Information)X1.OPTIONAL USEFUL EQUIPMENTX1.1Viewing TubeX1.1.1A useful flat glass test tube for holding tarnished copper strips for inspection or for storage for later inspection is illustrated and dimensioned in Fig.X1.1.X1.2Strip ViseX1.2.1A useful and convenient vise for holding up to four copper strips during final polishing is illustrated and dimen-sioned in Fig.X1.2.FIG.X1.1Flat Glass Test TubeFIG.X1.2Multistrip ViseASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this ers of this standard are expressly advised that determination of the validity of any such patent rights,and the risk of infringement of such rights,are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed everyfive years and if not revised,either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.Your comments will receive careful consideration at a meeting of the responsible technical committee,which you may attend.If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards,at the address shown below.This standard is copyrighted by ASTM International,100Barr Harbor Drive,PO Box C700,West Conshohocken,PA19428-2959, United States.Individual reprints(single or multiple copies)of this standard may be obtained by contacting ASTM at the above address or at610-832-9585(phone),610-832-9555(fax),or service@(e-mail);or through the ASTM website ().。

ASTM D130-12译文

ASTM D130-12译文

ASTM D 130-12译文石油产品铜片腐蚀标准试验方法1 范围1.1本方法适用于测定航空汽油、喷气燃料、车用汽油、清洗溶剂油、煤油、柴油、馏分燃料油、润滑油、天然汽油或其他具有37.8℃雷德蒸气压不大于124干帕斯卡(18磅/平方英尺)的其他石油烃类产品对铜的腐蚀。

警告:某些石油产品,特别是天然汽油,其蒸气压比车用汽油或航空汽油的蒸气压更高。

因此,必须特别注意,一定不要把装有高蒸气压的天然汽油或其他产品的试验弹放在100℃浴中。

雷德蒸气压超过124干帕斯卡(18磅/平方英寸)的试样要采用D 1838试验法来测定1.2 本标准采用国际单位制SI单位。

括号内的数据仅为提供信息之用。

1.3本标准涉及某些有危险性的材料、操作和设备,但是无意对与此有关的所有安全问题都提出建议。

因此,用户在使用本标准之前应建立适当的安全和防护措施并确定有适用性的管理制度。

特别注意事项见1.1、6.1和附录A2。

2 参考文件2.1 ASTM标准ASTM D 396燃料油规格ASTM D 975柴油规格ASTM D 1655 航空喷气燃料规格ASTM D 1838 液化石油气铜片腐蚀测定法ASTM D 4057石油和石油产品的手工取样用标准实施规程ASTM D 4177石油和石油产品自动抽样的标准实施规程ASTM D 6300石油产品和润滑剂试验方法中使用的精确度和偏差数据测定的标准实施规程ASTM E 1 ASTM玻璃液体热力计规格2.2 ASTM标准附件ASTM铜片腐蚀标准色板3 术语3.1首字母缩略词3.1.1 CAMI:表明覆盖磨料制造者协会3.1.2 FEPA:欧共体生产者协会4方法概要4.1把一块已抛光好的铜片浸没在一定里的试样中,并按产品标准要求加热到指定的温度,保持一定的时间。

待试验周期结束时,取出铜片,经洗涤后与腐蚀标准色板进行比较,确定腐蚀级别。

5 意义和用途5.1原油中的大部分硫化物在精制的过程中被除去,但是,残留在油品中的某些硫化物会对各种金属产生腐蚀。

石油产品铜片腐蚀测定方法步骤

石油产品铜片腐蚀测定方法步骤

石油产品铜片腐蚀测定方法步骤仪器、材料、试剂准备1.铜片腐蚀测定仪2.带胶塞的试管3.比色试管:扁平型,实验结束供检验,或储存期间供盛放腐蚀的铜片用4.夹具:供磨片时夹住铜片而不损坏边缘用5.温度计6.磨光材料:碳化硅或氧化铝砂纸7.不锈钢试验弹8.铜片:纯度大于99.99%的电解铜9.定量滤纸:吸干滤纸上的洗涤溶剂10.不锈钢镊子11.洗涤溶剂:分析纯异辛烷或标准异辛烷12.高型烧杯13.腐蚀标准色板:避光存放实验准备1.铜片处理:用碳化硅或氧化铝砂纸把铜片六面瑕疵去掉,经过打磨后的铜片要求无瑕疵、无污斑、无金属屑,颜色均匀;2.用定量滤纸擦去铜片上的金属屑后,将铜片浸泡在洗涤溶剂中;3.从洗涤溶剂中取出铜片,用一滴洗涤剂湿润铜片,并用一块脱脂棉擦铜片,以除去所有金属屑;4.铜片腐蚀仪器设备检查(1)检查仪器电源、机壳是否接地良好;(2)检查水浴是否达到试验操作要求水位;(3)检查浴内温度传感器是否正常;实验步骤1.将试验仪器放置平稳,接通电源,使水浴温度维持在50O C±1O C;2.把被测油样倒入清洁、干燥的试管中;3.将经过最后磨光、干净的铜片在1分钟内浸入该试管的试样中;4.把该试管放到温度维持在50O C±1O C的水浴中,记录实验开始时间;5.在水浴中放置3小时±5分钟后,从仪器中取出装有铜片的试管;6.用不锈钢镊子立即将铜片从试管中取出,浸入放有洗涤溶剂的高烧杯中,洗去试样;7.立即取出铜片,用定量滤纸吸干铜片上的洗涤溶剂;8.把铜片与腐蚀标准色板比较,来检查变色或腐蚀迹象,比较时,可将铜片放在扁平试管中,将铜片和腐蚀标准色板对光线成45O角折射的方式拿持,进行观察实验结果。

石油产品铜片腐蚀试验法(GB-T5096-1985)

石油产品铜片腐蚀试验法(GB-T5096-1985)

测定原理
• 把一块已磨光好的铜片浸没在一定量的试
样中,并按产品标准要求加热到指定的温 度,保持一定的时间。待试验周期结束时, 取出铜片,经洗涤后与腐蚀标准色板进行 比较,确定腐蚀级别。
实验仪器
• 试验弹:用不锈钢制作,并能承受689干帕斯卡试验表压 。 • 试管:长150毫米,外径25毫米,壁厚1~2毫米。在试管 30毫升处刻一环线。 • 水浴或其他液体浴(或铝块浴):能维持在试验所需的温度 40、50或100±l℃(或其他所需的温度)范围内,有合适的 支架能支持试验弹保持在垂直的位置,并使整个试验弹能 浸没在浴液中。有合适的支架能支持住试管在垂直位置, 并浸没至浴液中约l00毫米深度。 • 磨片夹钳或夹具:供磨片时牢固地夹住铜片而不损坏边缘 用。只要能夹紧铜片,并使要磨光的铜片表面能高出夹具 表面的任何形式的夹具都可以使用。 • 观察试管:扁平形,在试验结束时,供检验用或在贮存期 间供盛放腐蚀的铜片用 。
腐蚀标准色板
• 本方法用的腐蚀标准色板是由全色加工复制而成的。它是 在一块铝薄板上印刷四色加工而成,腐蚀标准色板是由代 表失去光泽表面和腐蚀增加程度的典型试验铜片组成(见 下表)。为了保护起见,这些腐蚀标准色板嵌在塑料板中。 在每块标准色板的反面给出了腐蚀标准色板的使用说明。 为了避免色板可能褪色,腐蚀标准色板应避光存放。试验 用的腐蚀标准色板要用另一块在避光下仔细地保护的(新 的)腐蚀标准色板与它进行比较来检查其褪色情况。在散 射的日光(或与散射的日光相当的光线)下,对色板进行观 察:先从上方直接看,然后再从45度角看。如果观察到有 任何褪色的迹象,特别是在腐蚀标准色板的最左边的色板 有这种迹象,则废弃这块色板。
实验步骤
• 把试管的内容物倒入150毫升高型烧杯中,倒时 要让铜片轻轻地滑入,以避免碰破烧杯。用不锈 钢镊子立即将铜片取出,浸入洗涤溶剂中,洗去 试样。立即取出铜片,用定量滤纸吸干铜片上的 洗涤溶剂。把铜片与腐蚀标准色板比较来检查变 色或腐蚀迹象。比较时,把铜片和腐蚀标准色板 对光线成45度角折射的方式拿持,进行观察。

石油产品铜片腐蚀性测试及综合实验设计

石油产品铜片腐蚀性测试及综合实验设计

石油产品铜片腐蚀性测试及综合实验设计
1.实验目的:
通过测试石油产品对铜片的腐蚀性能,评估其对金属材料的损伤程度,并设计综合实验以验证不同条件下的腐蚀性能。

2.实验材料:
-不同种类的石油产品样品
-铜片
-实验设备和仪器:例如恒温恒湿箱、电子天平、显微镜等
3.实验步骤:
a.准备铜片样品:使用无尘纸擦拭铜片表面,确保干净无污染。

b.将不同种类的石油产品样品分别涂抹在铜片上,涂层均匀。

c.将涂有石油产品的铜片置于恒温恒湿箱中,设定一定的温度和湿度条件。

d.定期观察铜片表面的变化,记录腐蚀情况,可以使用显微镜观察细节。

e.根据实验需要,可以改变温度、湿度或使用不同浓度的石油产品来进行对比实验。

f.实验结束后,使用电子天平测量铜片的质量变化,评估腐蚀程度。

4.实验结果分析:
a.比较不同石油产品样品对铜片的腐蚀性能,分析其腐蚀程度和差异。

b.对于综合实验设计,可以探究不同温度、湿度、石油产品浓度对腐蚀性能的影响,分析相关规律。

5.实验结论:
根据实验结果,可以得出不同石油产品对铜片的腐蚀性能,以及其受温度、湿度等条件变化的影响。

这些结论有助于评估石油产品的腐蚀性能,并为相关行业提供参考和指导。

液化石油气铜片腐蚀试验法

液化石油气铜片腐蚀试验法

安全管理/行业安全液化石油气铜片腐蚀试验法一、概述铜片腐蚀:在规定条件下,测试液化石油气对铜的腐蚀趋向的试验。

液化石油气的铜片腐蚀试验,主要是测定液化石油气的腐蚀性程度。

因为液化石油气在储运及使用过程中,均采用金属容器罐装,如果液化石油气腐蚀性过强,就会造成储运设备,容器的严重腐蚀,致使缩短使用期限,甚至引发其他危险。

因此,这项试验有重要意义。

我国现行的液化石油气铜片腐蚀试验法是采用SH/T 0232《液化石油气铜片腐蚀试验法》,该方法等效采用ISO 6521-1982《液化石油气铜片试验法》。

二、原理将磨光的铜片,全部浸入装有100mL已被水饱和的试样的容器中,该容器应具有一定的工作压力(≥7.0MPa),在40℃温度下放置1h,取出后与标准色板比较,判断其腐蚀级别。

三、仪器设备(1)铜片腐蚀试验弹:由不锈钢制成,容量约160mL。

整套组件应能经受约7.0MPa的静压试验,当用气体约在3.5MPa压力下试验时应无泄漏,见图1-6-4。

(2)恒温水浴:能够维持40℃±0.5℃的水温并配有使试验弹保持垂直的悬架或支架,有足够的空间可以将整个圆筒(包括阀)浸没。

(3)水银温度计:全浸0~50℃分度0.1℃。

(4)铜片磨光夹具:磨铜片用,能够夹紧铜片且不损伤铜片边缘,方便铜片磨光操作即可。

四、材料(1)洗涤溶剂:标准异辛烷,或其他无硫烃类溶剂,例如石油醚(90~120℃)。

图1-6-4 铜片腐蚀试验弹1-6mm的针型阀A;2-氯丁橡胶O形密封圈;3-铜片;4-6mm的针型阀B(2)铜片:电解铜,纯度99.9%以上,长7.5cm,宽1.25cm,厚0.15~0.30cm,表面光滑经冷轧淬硬,且在一端中心3.0mm 处钻一直径为3.0mm的小孔。

(3)磨光材料:65μm碳化硅或刚玉砂纸、砂布,抛光用150目的碳化硅或刚玉砂,以及药用脱酯棉。

五、标准色板(1)腐蚀标准色板为全色复制品。

它是在铝板上通过四道色加工处理印成的。

油品腐蚀测定实验报告

油品腐蚀测定实验报告

油品腐蚀测定实验报告1. 实验目的本实验旨在通过对不同油品的腐蚀性进行测定,评估其对金属材料的腐蚀程度,为油品的选择和使用提供参考依据。

2. 实验原理腐蚀是指金属在与其周围介质接触时,由于电化学反应而产生的一种化学变化。

油品作为一种常见的润滑材料和润滑介质,在与金属发生接触时,也会产生腐蚀现象。

本实验采用重量损失法来评估油品对金属材料的腐蚀性。

具体步骤如下:1. 清洗金属试样,使其表面干净、无杂质。

2. 将未知油品样品与金属试样接触一段时间。

3. 取出金属试样,用乾燥纸巾将其表面上的油品擦净。

4. 用精密天平称量金属试样的质量。

5. 将金属试样放入烘箱中加热干燥,直至试样的质量不再发生变化。

6. 计算金属试样的质量损失,作为油品对金属的腐蚀程度的评估指标。

3. 实验材料和设备- 金属试样(不同种类和规格)- 未知油品样品- 乾燥纸巾- 精密天平- 烘箱4. 实验步骤1. 将金属试样放入洗涤剂中浸泡10分钟,用流动水冲洗干净。

2. 用无水酒精擦拭金属试样表面,保证其干净无杂质。

3. 将试管中的未知油品样品倒入培养皿中。

4. 将金属试样放入培养皿中,与油品样品接触3小时。

5. 取出金属试样,用乾燥纸巾将其表面上的油品擦净。

6. 用精密天平称量金属试样的质量,并记录下来。

7. 将金属试样放入烘箱中加热干燥,直至试样的质量不再发生变化,再次称量并记录质量。

8. 计算金属试样的质量损失,作为油品对金属的腐蚀程度的评估指标。

5. 实验结果与分析在本次实验中,我们使用了三种不同的油品样品A、B和C,分别与金属试样接触3小时后进行测量和比较。

实验结果如下表所示:油品样品金属试样质量损失(g)A 0.02B 0.05C 0.08通过测量结果可以看出,油品样品C对金属试样的腐蚀程度最大,而油品样品A 的腐蚀性最小。

这说明油品样品C可能含有一些腐蚀性物质,而油品样品A中这些物质的含量较低。

根据这些数据,我们可以给出油品样品的腐蚀性评估,提供选择和使用油品的参考依据。

石油产品铜片腐蚀的试验方法

石油产品铜片腐蚀的试验方法

石油产品铜片腐蚀的试验方法为什么要测量石油产品中的铜片腐蚀呢?由于原油是含酸的,所以绝大多数从原油生产出来的产品都有肯定的酸性(腐蚀性),铜片腐蚀就是测量石油产品的腐蚀性;不同指标的用于不同级别的终端,例如:液化气中的腐蚀性,对钢材设备有微量的腐蚀性,对橡胶有溶化作用,灌装液化气终端都有塑料管,腐蚀性大,确定会产生不安全。

铜片腐蚀测定仪的试验方法:铜片腐蚀设备用于测定柴油、汽油、润滑油或其他石油产品对铜的腐蚀性程度,本方法涉及到易燃材料,操作前要注意试样的燃点、闪点,操作时要注意安全.石油产品铜片腐蚀的试验过程:1、取样:取30毫升的试样倒入试验试管中,试样尽量保存在干净、深色的玻璃瓶内,试管要干燥、清洁。

2、不同的试样采纳不同的试验步骤:A、润滑油、溶剂油、煤油:量取30毫升*清亮、无悬浮水或内含水的试样倒入清洁、干燥并带有试管夹的试管中,将zui后磨光、干净的铜片放入该试管的试样中,把带有试管夹的试管放到已维持在1001℃的浴中,在浴中放置35小时后取出试管,检查铜片。

B、航空汽油、喷气燃料:量取30毫升*清亮、无悬浮水或内含水的试样倒入清洁、干燥的试管中,把该试管当心的滑入试验弹中,把弹盖旋紧,把试验弹*放入已维持在1001℃的浴中,在浴中放置25小时后取出试验弹,用自来水冲几分钟,打开试验弹,取出试管,检查铜片。

C、天然汽油:量取30毫升*清亮、无悬浮水或内含水的试样倒入清洁、干燥的试管中,把该试管当心的滑入试验弹中,把弹盖旋紧,把试验弹*放入已维持在401℃的浴中,在浴中放置25小时后取出试验弹,用自来水冲几分钟,打开试验弹,取出试管,检查铜片D、柴油、燃料油、车用汽油:量取30毫升*清亮、无悬浮水或内含水的试样倒入清洁、干燥并带有试管夹的试管中,将zui后磨光、干净的铜片放入该试管的试样中,把带有试管夹的试管放到已维持在501℃的浴中,在浴中放置35小时后取出试管,检查铜片。

GBT5096 铜片腐蚀实验法

GBT5096 铜片腐蚀实验法
可以判定油品中是否含有活性硫化物等杂质,可以预知燃料在储存、运 输和使用过程中,对金属产生腐蚀的可能性。
概况 实验准备
试验步骤
结果评定
试验总结
“ GB17930-2016 车用汽油(Ⅵ)
铜片腐蚀(50℃,3h)
不大于1
GB19147-2016 车用柴油(Ⅵ)
铜片腐蚀(50℃,3h) GB252-2015 普通柴油
论论文概文绪况绪论论 研研究究实背验背景设景备 研研究究方方法试法验 研步研究骤究结结果果 结问问果题题评讨讨定论论 论论文文试总总验结结总 结
2.6铜片准备
2.6.2铜片磨光
1、表面磨光 先用粗砂出去上次实验所残留的瑕疵和蚀污。然后用P220(65um)砂 纸处理,除去打磨痕迹,用滤纸擦去铜片表面的金属屑,将铜片浸泡在 洗涤溶剂中随后取出做最后磨光或贮存于洗涤剂中备用。
2、方法概要 把一块已磨光好的铜片浸没在一定体积的试样中,根据产品
的类别加热到规定定的温度,并保持一定的时间。待加热周期 结束时,取出铜片,经洗涤后,将其与铜片腐蚀标准色板进行 比较,确定腐蚀级别。 车用汽油、柴油常用实验条件为50℃,3h 工业润滑油常用的试验条件为100℃(或120℃),3h。
论 文概绪况论 研实验究准背备景 研试究备方样法制 研试究验结步果骤 问结题果讨计论算 与论评文定总 结试 验 总 结
2.5 样品准备
2.5.1取样 按照GB/T4756标准方法进行取样,样品应贮存于深色样品瓶,镀锡容器
会影响样品的腐蚀性,因此不能使用镀锡容器盛装样品。 挥发性样品建议充满至容器容量70~80%即可,取样要小心,要避免将样
品暴露在阳光下。 2.5.2 样品准备
取回的样品应尽快进行实验 如果观察到样品有悬浮水(浑浊),要先用中速定量滤纸过滤干燥足够 实验的样品。过滤操作要避光,最好在暗室中进行。

石油产品铜片腐蚀测定法

石油产品铜片腐蚀测定法

GB/T 5096-1985
中国石油内蒙古销售公司
三、仪器、材料、试剂准备——试剂与材料
n 夹具:供磨片时夹住铜片而不损坏边缘用。
GB/T 5096-1985
中国石油内蒙古销售公司
三、仪器、材料、试剂准备——试剂与材料
n 温度计:0~50℃(全浸),最小分度值1℃或小于 1℃。
GB/T 5096-1985
50
快速法 (Q/SY1438-2011)
90
试验时间(分 钟)
180
30
GB/T 5096-1985
中国石油内蒙古销售公司
主要内容
1 2 3 4 5 6 7 8
GB/T 5096-1985
方法概要
测定意义 仪器、材料、试剂准备
实验 结果的表示及判断
结果报告 国家标准与快速法的比较
注意事项
中国石油内蒙古销售公司
1 2 3 4 5 6 7 8
GB/T 5096-1985
方法概要
测定意义 仪器、材料、试剂准备
实验 结果的表示及判断
结果报告 国家标准与快速法的比较
注意事项
中国石油内蒙古销售公司
五、结果的表示及判断( 附表)
分级 1
2
名称 轻度 变色
中度 变色
说明
a 淡橙色,几乎与新磨光的铜片一样 b 深橙色
a 紫红色 b 淡紫色 c 带有淡紫蓝色,或银色,或两种都有,并分别覆盖 在紫红色上的多彩色 d 银色 e 黄铜色或金黄色
中国石油内蒙古销售公司
四、实验——步骤
n 把被测油样,倒入清洁、干燥的试管中30mL刻线 处。(铜片腐蚀按国标需做平行试验,需两个试样)
GB/T 5096-1985
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油品铜片腐蚀测试方法
石油产品铜片腐蚀试验是目前工业润滑油最主要的腐蚀性测定法,科标能源实验室是专业的第三方检测机构,专注于油品检测,同样也是采用此方法测定油品的腐蚀性能。

检测标准方法
GB/T5096
ASTM D130
ISO2160
SH/T0195
试验方法概要是:
把一块已磨光好的铜片浸没在一定量的试样中,并按产品标准要求加热到指定的温度,保持一定的时间。

待试验周期结束时,取出铜片,在洗涤后与标准色板进行比较,确定腐蚀级别。

工业润滑油常用的试验条件为100℃(或120℃),3h。

1、试验铜片放入试管油样中,恒温50摄氏度+1,放置3hr+5min对照腐蚀标准色板。

分级(1a、1b、2a、2b、2c、2d、2e、3a、3b、3c、4a、4b)。

2.指标为在100℃+1,3h条件下将铜片置于被测溶液中,试验过程中铜片表面受待测式样的侵蚀程度,腐蚀程度共分四级;
1:轻度变色----------淡橙色,几乎与新麽的铜片一样;深橙色
2:中度变色----------紫红色;淡红色;带有淡紫色或银色,或两种都有,并分别覆盖在紫红色上的多彩色;银色;黄铜色或金黄色
3:深度变色-----------洋红色覆盖在黄铜色上的多彩色;有红和绿显示的多彩色(孔雀绿),但不带灰色
4:腐蚀---------------透明的黑色,深灰色或仅带有孔雀绿的棕色;石墨黑色或无光泽的黑色;有光泽的黑色或乌黑发亮的黑色。

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