ASTM D6038-2014 red 4974 Standard Test Methods for Determining the Compatibility of Resin Solvent Mixtures by Precipitation Temperature &40 Cloud Point&41 《采用沉降温度40 浊点41测定树脂 溶剂混合物兼.pdf
《ASTM D6038-2014 red 4974 Standard Test Methods for Determining the Compatibility of Resin Solvent Mixtures by Precipitation Temperature &40 Cloud Point&41 《采用沉降温度40 浊点41测定树脂 溶剂混合物兼.pdf》由会员分享,可在线阅读,更多相关《ASTM D6038-2014 red 4974 Standard Test Methods for Determining the Compatibility of Resin Solvent Mixtures by Precipitation Temperature &40 Cloud Point&41 《采用沉降温度40 浊点41测定树脂 溶剂混合物兼.pdf(6页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D6038 051D6038 14Standard Test Methods forDetermining the Compatibility of Resin/Solvent Mixtures byPrecipitation Temperature (Cloud Point)1This standard is issued under the fixed designation D6038; the number immediately following the designation indicates the year oforiginal adoption
2、or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1 NOTEAdded research report footnote to Section 11 editorially in September 2008.1. Scope
3、*1.1 These test methods cover the manual and automatic procedures for testing the compatibility of lithographic ink resins in highboiling ink solvents by precipitation temperature (cloud point) in a range from 35 to 210C.1.2 The manual procedure in this test method uses laboratory equipment generall
4、y available in a normal, well-equippedlaboratory. The automated procedure uses the Chemotronic Cloudpoint Tester. a programmable cloudpoint tester.1.3 This test method is for use with ink resins intended mainly for oil-based offset and letterpress inks. The type of resins aretypically, but not limit
5、ed to C9 aromatic hydrocarbon resins, modified dicyclopentadiene resins, rosin pentaerythritol or glycerolesters, phenolic modified rosin esters, maleic anhydride modified-rosin esters, and naturally occurring resins such as gilsonite.1.4 A resin solution or ink vehicle could also be used in this te
6、st instead of the resin.1.5 The typical high boiling solvents to be used are C12 to C16 petroleum distillates.1.6 To avoid fire or injury, or both, to the operator, this test method should not be used with low flash point solvents such astoluene or xylene. The minimum flash point of the solvents use
7、d should be 60C (140F) as determined by Test Method D56.NOTE 1Users of this test method should be aware that the flash point of many solvents used for this test (as defined in Test Methods D56 and D1310)is exceeded in the heating cycle of this test method. Safety precautions should be taken since th
8、ere is the potential for vapor ignition. The method outlinedshould be done in a shielded exhaust hood, where there is access to a fire extinguisher if needed.1.7 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for informationonly.standard. No oth
9、er units of measurement are included in this standard.1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability o
10、f regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D56 Test Method for Flash Point by Tag Closed Cup TesterD1310 Test Method for Flash Point and Fire Point of Liquids by Tag Open-Cup ApparatusE1 Specification for ASTM Liquid-in-Glass ThermometersE180 Practice for Determi
11、ning the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals(Withdrawn 2009)3E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method3. Terminology3.1 Definitions:1 These test methods are under the jurisdiction of ASTM Com
12、mittee D01 on Paint and Related Coatings, Materials, and Applications and are the direct responsibility ofSubcommittee D01.37 on Ink Vehicles.Current edition approved July 1, 2005Jan. 1, 2014. Published August 2005January 2014. Originally approved in 1996. Last previous edition approved in 19962005
13、asD6038 96.D6038 051. DOI: 10.1520/D6038-05E01.10.1520/D6038-14.2 For referencedASTM standards, visit 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 websi
14、te.3 The last approved version of this historical standard is referenced on www.astm.org.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
15、to adequately depict all changes accurately, ASTM recommends that users 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.*A Summary of Changes section appears at the end of this standardCopyrigh
16、t ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13.1.1 cloud point, n(precipitation temperature) the temperature at which a resin/solvent mixture changes from clear to turbidand opaque.3.1.2 compatibility, nresin and solvent mixture forms a cl
17、ear, homogeneous, and stable solution.solution at room temperature.3.1.3 incompatibility, nresin and solvent mixture does not form a uniform solution and may be in two phases or opaque.3.1.4 precipitation, nresin separates from the resin/solvent mixture.3.1.5 solubility, nthe degree of resin compati
18、bility in a given solution.4. Summary of Test Method4.1 A 10 % by weight mixture of the resin (or ink vehicle) to be tested in the reference solvent (or vice versa) is heated in atest tube and stirred until a clear solution is obtained.4.2 The solution is allowed to cool. The cloud point is the lowe
19、st temperature that can be read on a thermometer, positionedat the back wall of the test tube, or in the case of the automated tester, before the solution reaches the preset turbidity level.4.3 If the solution remains clear at room temperature, the test tube is cooled (cold water, ice water, or dry
20、ice/acetone bath) untilthe cloud point can be recorded. (Cooling below ambient temperature can only be done in the manual method.)5. Significance and Use5.1 These test methods provide a means of determining the compatibility of a resin (or vehicle), at low concentrations, in a highboiling ink solven
21、t.5.2 Resin-solvent mixtures that exhibit a high precipitation temperature are less compatible than those exhibiting a lowprecipitation temperature.5.3 Resin-solvent mixtures that exhibit precipitation temperatures at or close to the cloud point of the pure solvent areconsidered infinitely compatibl
22、e or the resin is infinitely soluble in that solvent.6. Reagents and Materials6.1 Resins, (for example, modified hydrocarbon, or rosin ester resins, or both) or Ink Vehicle.6.2 Solvents, will be those commonly used for making lithographic ink vehicles, for example, hydrocarbon petroleum distillateC1
23、2 to C16 as agreed upon by producer and user.NOTE 2The use of ink industry recognized Test Ink Oils are recommended for evaluating resins. The Test Ink Oils are controlled from lot to lot toensure meaningful data. (Contact NAPIM NAPIM4 for a list of approved Test Ink Oils).6.3 Calibration Materials,
24、 PRIFRAC 2981 stearic acid and Haltermann N-C16 oil oil5 designated for automatic method onlybut can be used for manual method.MANUAL METHOD7. Apparatus7.1 Balance or Scale, weighing to 60.02 g accuracy and a minimum 250 g capacity.7.2 Heat-Resistant Test Tube, 25mm width by 150mm height.7.3 Thermom
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
5000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ASTMD60382014RED4974STANDARDTESTMETHODSFORDETERMININGTHECOMPATIBILITYOFRESINSOLVENTMIXTURESBYPRECIPITATIONTEMPERATURE40CLOUDPOINT41

链接地址:http://www.mydoc123.com/p-521367.html