欢迎来到麦多课文档分享! | 帮助中心 海量文档,免费浏览,给你所需,享你所想!
麦多课文档分享
全部分类
  • 标准规范>
  • 教学课件>
  • 考试资料>
  • 办公文档>
  • 学术论文>
  • 行业资料>
  • 易语言源码>
  • ImageVerifierCode 换一换
    首页 麦多课文档分享 > 资源分类 > PDF文档下载
    分享到微信 分享到微博 分享到QQ空间

    ASTM D2414-2016 Standard Test Method for Carbon Black&x2014 Oil Absorption Number (OAN)《碳黑的标准试验方法 油吸收值 (OAN)》.pdf

    • 资源ID:512834       资源大小:104.60KB        全文页数:11页
    • 资源格式: PDF        下载积分:10000积分
    快捷下载 游客一键下载
    账号登录下载
    微信登录下载
    二维码
    微信扫一扫登录
    下载资源需要10000积分(如需开发票,请勿充值!)
    邮箱/手机:
    温馨提示:
    如需开发票,请勿充值!快捷下载时,用户名和密码都是您填写的邮箱或者手机号,方便查询和重复下载(系统自动生成)。
    如需开发票,请勿充值!如填写123,账号就是123,密码也是123。
    支付方式: 支付宝扫码支付    微信扫码支付   
    验证码:   换一换

    加入VIP,交流精品资源
     
    账号:
    密码:
    验证码:   换一换
      忘记密码?
        
    友情提示
    2、PDF文件下载后,可能会被浏览器默认打开,此种情况可以点击浏览器菜单,保存网页到桌面,就可以正常下载了。
    3、本站不支持迅雷下载,请使用电脑自带的IE浏览器,或者360浏览器、谷歌浏览器下载即可。
    4、本站资源下载后的文档和图纸-无水印,预览文档经过压缩,下载后原文更清晰。
    5、试题试卷类文档,如果标题没有明确说明有答案则都视为没有答案,请知晓。

    ASTM D2414-2016 Standard Test Method for Carbon Black&x2014 Oil Absorption Number (OAN)《碳黑的标准试验方法 油吸收值 (OAN)》.pdf

    1、Designation: D2414 14D2414 16Standard Test Method forCarbon BlackOil Absorption Number (OAN)1This standard is issued under the fixed designation D2414; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A nu

    2、mber in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope1.1 This test method covers the determination of the oi

    3、l absorption number of carbon black.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the

    4、 user of this standard to establish appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D445 Test Method for Kinematic Viscosity of Transparent and Opaque Liquids (and Calculation of Dynamic Viscosit

    5、y)D1218 Test Method for Refractive Index and Refractive Dispersion of Hydrocarbon LiquidsD1765 Classification System for Carbon Blacks Used in Rubber ProductsD1799 Practice for Carbon BlackSampling Packaged ShipmentsD1900 Practice for Carbon BlackSampling Bulk ShipmentsD4052 Test Method for Density,

    6、 Relative Density, and API Gravity of Liquids by Digital Density MeterD4483 Practice for Evaluating Precision for Test Method Standards in the Rubber and Carbon Black Manufacturing IndustriesD4821 Guide for Carbon BlackValidation of Test Method Precision and BiasD5554 Test Method for Determination o

    7、f the Iodine Value of Fats and Oils2.2 DIN Standards:3DIN 16945 Testing of resins, hardeners and accelerators, and catalyzed resinsDIN EN ISO 660 Animal and vegetable fats and oils - Determination of acid value and acidity3. Summary of Test Method3.1 In this test method, oil is added by means of a c

    8、onstant-rate buret to a sample of carbon black in the mixer chamber of anabsorptometer.As the sample absorbs the oil, the mixture changes from a free-flowing state to one of a semiplastic agglomeration,with an accompanying increase in viscosity. This increased viscosity is transmitted to the torque-

    9、sensing system of theabsorptometer. When the viscosity of the mixture reaches a predetermined torque level, the absorptometer and buret will shut offsimultaneously. The volume of oil added is read from the direct-reading buret. The volume of oil per unit mass of carbon blackis the oil absorption num

    10、ber.3.2 Either DBP, paraffin or epoxidized sunflower oils are acceptable for use with most standard pelleted grades of carbon blackincluding N-series carbon blacks found in Classification D1765. OAN testing using paraffin oils or epoxidized sunflower oils onsome standard blacks and specialty blacks

    11、including powder products may result in unacceptable differences as compared to OANtesting with DBP oil. Paraffin and epoxidized sunflower oils are considered non-hazardous; some paraffin oils are FDA approved.For any of the oils, Sections 8 11 (Calibration, Procedure, Calculation, and Report) are t

    12、o be consistent with the oil selected foruse. Referee testing between suppliers and users should use DBP oil until such time that precision data are available for alternateoils.1 This test method is under the jurisdiction ofASTM Committee D24 on Carbon Black and is the direct responsibility of Subco

    13、mmittee D24.11 on Carbon Black Structure.Current edition approved July 1, 2014Jan. 1, 2016. Published December 2014January 2016. Originally approved in 1965. Last previous edition approved in 20132014 asD2414 13a.D2414 14. DOI: 10.1520/D2414-14.10.1520/D2414-16.2 For referencedASTM standards, visit

    14、theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 Available from Deutsches Institut fur Normung e.V.(DIN), Burggrafenstrasse 6, 10787 Berlin, Germa

    15、ny, http:/www.din.de.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that us

    16、ers consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States14. Significance and Use4.1

    17、The oil absorption number of a carbon black is related to the processing and vulcanizate properties of rubber compoundscontaining the carbon black.5. Apparatus45.1 Balance, analytical, with an 0.01-g sensitivity.5.2 Oven, gravity-convection type, capable of maintaining 125 6 5C.5.3 Spatula, rubber,

    18、100-mm.5.4 Absorptometer, equipped with a constant-rate buret that delivers 4 6 0.024 cm3/min.55.5 Desiccator.6. Reagent and Standards6.1 Purity of ReagentsReagent grade chemicals shall be used in all tests. Unless otherwise indicated, it is intended that allreagents shall conform to the specificati

    19、ons of the Committee on Analytical Reagents of the American Chemical Society, wheresuch specifications are available.6 Other grades may be used, provided it is first ascertained that the reagent is of sufficiently highpurity to permit its use without lessening the accuracy of the determination.6.2 n

    20、-Dibutyl Phthalate, having a density of 1.042 to 1.047 Mg/m3 at 25C and a relative density of 1.045 to 1.050 at 25C.6.3 Paraffn Oil, having a kinematic viscosity of 10 to 34 mm2/s (cSt) at 40C.NOTE 1Three paraffin oils have been found suitable including Marcol 82 from Exxon, 80/90 White Oil from Con

    21、oco-Phillips, and LC1 oil from LabChemicals, Germany. All three oils are pharmaceutical or food grade oil, or both, based on available data.6.4 Epoxidized Fatty Acid Ester (EFA), meeting the specifications listed in Annex A4. It is recommended to store the productat temperatures between 7 and 30C. I

    22、f stored in sealed original containers, the product is stable for at least 12 months. Forhandling and safety, please refer to safety data sheet.6.5 ASTM D24 Standard Reference Blacks, SRB.77. Sampling7.1 Samples shall be taken in accordance with Practices D1799 and D1900.8. Calibration and Standardi

    23、zation8.1 Absorptometer:8.1.1 ModelThree different types of absorptometers are in use: (1) early models based on springs and mechanical indicationof torque (TypeAand B), (2) second generation absorptometers equipped with load cells and digital torque display (Type E8), and(3) current model absorptom

    24、eters which are designed with a torque measuring system that includes a micro-computer and softwareto continuously record torque and oil volume with time (Types H and C and modified Type E8). Types A, B, and E8 are designedto stop mixing at a predetermined, fixed torque level, which is the recommend

    25、ed procedure for measuring hard or tread blacks(calibration Procedure A). The computer controlled models (Types H and C and modified Type E8) are required for runningcalibration Procedure B, the recommended torque curve analysis for the determination of the end-point of soft or carcass blacks.The Ty

    26、pe H and C and modified Type E8 absorptometers can also provide an end-point at a fixed or predetermined torque levelsuch that these types of absorptometers are well-suited for measuring OAN of both hard and soft carbon blacks. Severalcomponents influence the calibration: the dynamometer torque spri

    27、ng or the load cell, the torque limit switch or the indicator setpoint, the damper (oil damper or electronic damping), and the mixing head consisting of two counter rotating blades and a mixingbowl. It is necessary that all of these components are in good condition and are properly adjusted to achie

    28、ve acceptable calibration.8.1.2 Mixing BowlTypically the absorptometer is delivered with either a surface-treated stainless steel or anodized aluminummixing bowl. These bowls are considered acceptable provided they give the correct reading for the appropriate SRB referencestandards. The surface fini

    29、sh of the mixer chamber is critical for maintaining proper calibration, and the bowl should not bemodified to achieve calibration.4 All apparatus are to be operated and maintained in accordance with the manufacturers directions for optimum performance.5 Available from C. W. Brabender Instruments, In

    30、c., 50 E. Wesley St., Sout Hackensack, NJ 07606 () and from HITEC Luxembourg, 5 Rue de lEglise,L-1458 Luxembourg (www.hitec.lu).6 Reagent Chemicals, American Chemical Society Specifications , American Chemical Society, Washington, DC. For suggestions on the testing of reagents not listed bythe Ameri

    31、can Chemical Society, see Analar Standards for Laboratory Chemicals, BDH Ltd., Poole, Dorset, U.K. and the United States Pharmacopeia and NationalFormulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville, MD.7 The sole source of supply of ASTM Standard Reference Blacks known to the committee

    32、at this time is Laboratory Standards and Technologies, 227 Somerset, Borger,TX 79007, http:/ If you are aware of alternative suppliers, please provide this information to ASTM International Headquarters. Your comments willreceive careful consideration at a meeting of the responsible technical commit

    33、tee,1 which you may attend.8 Type E absorptometers can be modified with additional hardware and micro-computer system.D2414 162NOTE 2Stainless steel chambers have been found satisfactory for the test when they are manufactured to a roughness value (Ra) of 2.5 6 0.4 m(100 6 15 in.) based upon 8 measu

    34、rements. No single measurement should be greater than 3.6 m (140 in.) or less than 1.5 m (60 in.). Stainlesssteel bowls purchased with an absorptometer have been pre-polished for 16 h to minimize bowl surface changes affecting calibration during their initialuse. It is recommended that new replaceme

    35、nt stainless steel bowls should also be pre-polished in the same manner (see Annex A3).8.2 Calibration:8.2.1 Rotor BladesThe speed of the motor driving the rotor blades is either fixed (Type A and B) or has to be set (Type E,C, and H) to 125 r/min. Due to a gear, one blade spins at 125 r/min, the ot

    36、her blade at 250 r/min.8.2.2 Constant-Rate BuretThe delivery rate of the buret is to be 4 cm3/min. See Annex A1 for detailed instructions on theprocedure for calibration check of the constant-rate buret.8.2.3 Spring Tension (Type A and B)It is recommended that the torque spring is adjusted so that t

    37、he SRB F standard willdevelop a maximum torque between 70 % and full-scale deflection. This is achieved by selecting the appropriate spring strengthand adjusting the spring tension in accordance with the instructions of the manufacturer.NOTE 3The absorptometers Type E, C, and H are calibrated by the

    38、 manufacturer to give a direct reading of torque in mNm; this calibration shouldnot be modified in order to achieve a desired level of torque. If calibration is necessary, refer to the instrument manufacturers recommendations. Theinstrument torque calibration should not be confused with the torque l

    39、imit switch described in 8.2.5.8.2.4 DamperFor the Type A absorptometer, it is recommended to keep the valve of the oil damper fully closed. The TypeB absorptometer shall provide a full-scale recovery of 3 6 0.5 s; the valve has to be adjusted accordingly. The Type Eabsorptometer has an electronic d

    40、amping option and Types C and H have appropriate software damping. Make sure that thesedamping options are activated.8.2.5 Torque Limit Switch (TLS) or the Indicator Set PointIf the end-point of the test is determined by a fixed torque limit,the setting of the TLS, also called indicator set-point, h

    41、as to be selected using one of the following three procedures:8.2.5.1 Procedure A: End-Point at Fixed Torque LevelThis “classical” method is well suited for most hard or tread blacks butmay lead to problems when low-torque carcass blacks are to be tested; proceed to Procedure B for low-torque carbon

    42、 blacks. ForType A, B, and E absorptometers, adjust the TLS or the indicator set point in such way that the current SRB F standard gives thecorrect target value within the limits as defined in Guide D4821. For Type E, C, and H absorptometers dedicated to testing treadblacks only, there is no advanta

    43、ge to setting the TLS based on the SRB F standard; for these absorptometers, set the TLS to 3500mNm for DBP oil, or 4000 mNm for paraffin oil.8.2.5.2 Procedure B: End-Point at 70 % of the Maximum TorqueCertain carcass blacks and thermal blacks may fail to givean end-point due to insufficient torque

    44、level. Therefore, the preferred method for testing soft blacks is to record the torque curveusing a chart-recorder or a data acquisition system and to read the end-point at 70 % of the maximum of the torque achieved. Setthe TLS or the indicator set point to full scale in order to disable the automat

    45、ic shut-off of the absorptometer.8.2.5.3 Procedure C: End-Point at a Fixed, But Reduced Torque LevelRequires use of SRB-5 series standards. See TestMethod D2414 00.8.3 Normalization:8.3.1 Physically calibrate the test apparatus including TLS adjustment using the instructions in 8.2.8.3.2 Test the si

    46、x ASTM Standard Reference Blacks (SRBs) in duplicate to establish the average measured value. Additionalvalues are added periodically, typically on a weekly basis. The rolling average of the measured values is computed from the latestfour values.NOTE 4When only tread- or carcass-type carbon blacks a

    47、re to be tested, the calibration can be limited to either the three tread- (A, B, C) or the threecarcass-type (D, E, F) carbon black standards.8.3.3 Perform a regression analysis using the standard value of the standard (y value) and the rolling average measured value(x value). Separate carcass and

    48、tread calibration curves should be maintained.8.3.4 Normalize the values of all subsequent samples as follows:Normalized value5measured value3slope!1y 2intercept (1)8.3.5 For normalized values of the SRBs that are consistently outside the x-chart limits listed in Guide D4821, the test apparatusshoul

    49、d be recalibrated in accordance with 8.2.8.3.6 When any absorptometer or calibration changes occur, a new calibration curve must be initiated as described in 8.3.2.8.3.7 In most instances, if proper calibration cannot be achieved by following 8.2 or 8.3.2 8.3.4, it will be necessary to replacethe mixer chamber with one of proper surface finish. Review Appendix X1.9. Procedure9.1 Dry an adequate sample for 1 h in the specified oven set at 125C. Prior to testing, cool the sample in a desiccator for a


    注意事项

    本文(ASTM D2414-2016 Standard Test Method for Carbon Black&x2014 Oil Absorption Number (OAN)《碳黑的标准试验方法 油吸收值 (OAN)》.pdf)为本站会员(progressking105)主动上传,麦多课文档分享仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文档分享(点击联系客服),我们立即给予删除!




    关于我们 - 网站声明 - 网站地图 - 资源地图 - 友情链接 - 网站客服 - 联系我们

    copyright@ 2008-2019 麦多课文库(www.mydoc123.com)网站版权所有
    备案/许可证编号:苏ICP备17064731号-1 

    收起
    展开