ASTM D6284-2002 Standard Test Method for Rubber Property&8212 Effect of Aqueous Solutions with Available Chlorine and Chloramine《橡胶性能的标准试验方法 含氯和氯胺的水溶液的影响》.pdf
《ASTM D6284-2002 Standard Test Method for Rubber Property&8212 Effect of Aqueous Solutions with Available Chlorine and Chloramine《橡胶性能的标准试验方法 含氯和氯胺的水溶液的影响》.pdf》由会员分享,可在线阅读,更多相关《ASTM D6284-2002 Standard Test Method for Rubber Property&8212 Effect of Aqueous Solutions with Available Chlorine and Chloramine《橡胶性能的标准试验方法 含氯和氯胺的水溶液的影响》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: D 6284 02Standard Test Method forRubber PropertyEffect of Aqueous Solutions withAvailable Chlorine and Chloramine1This standard is issued under the fixed designation D 6284; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revisi
2、on, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers procedures for evaluating theability of rubber and rubber-like materials to w
3、ithstand theeffects of aqueous solutions with available chlorine andchloramine. It is intended to compare the effects of chlorinecompounds, present in potable water due to disinfectionprocedures, on rubber articles.1.2 Test solutions are designed to contain chlorine com-pounds, including hypochlorou
4、s acid (HOCI), hypochloriteions (OCI), and monochloramine (NH2Cl).1.3 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the app
5、lica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:D 471 Test Method for Rubber PropertyEffect of Liq-uids2D 1193 Specification for Reagent Water3D 1253 Test Methods for Residual Chlorine in Water3D 1889 Test Method for Turbidity of Water3D 2240 Test Method
6、for Rubber PropertyDurometerHardness2D 3182 Practice for RubberMaterials, Equipment, andProcedures for Mixing Standard Compounds and Prepar-ing Standard Vulcanized Sheets2D 3183 Practice for RubberPreparation of Pieces for TestPurposes from Products2D 4483 Practice for Determining Precision for Test
7、 MethodStandards in the Rubber and Carbon Black Industries23. Terminology3.1 The terminology of chlorine compounds used in this testmethod is in accordance with Test Methods D 1253, Section 7.3.2 combined residual chlorineresidual consisting ofchlorine combined with ammonia nitrogen and nitrogenousc
8、ompounds.3.3 free available chlorine residualresidual consisting ofhypochlorite ions (OCI) or hydrochlorous acid (HOCl), orboth.3.4 total residual chlorine (chlorine residual)the amountof available chlorine-induced oxidants present in water at anyspecified period, subsequent to the addition of chlor
9、ine.4. Summary of Test Method4.1 This test method provides procedures for exposing testpieces to aqueous available chlorine and chloramine solutionsunder defined conditions of temperature and time.4.2 This test method includes the following procedures:Change in mass after immersion Section 10Change
10、in volume after immersion Section 11Change in hardness after immersion Section 12Visual and turbidity rating after immersion Section 134.3 The resulting deterioration is measured by changes inmass, volume, hardness, and appearance of the test piecesurfaces and test liquid after immersion.4.4 This te
11、st method also describes the preparation of theimmersion liquids.5. Significance and Use5.1 Rubber articles, such as seals, gaskets, and membranes,may be exposed in service to chlorine compounds used inpotable water as disinfectants. The exposure may be intermit-tent or continuous and can occur at v
12、arious temperatures.5.2 Properties of rubber articles can deteriorate as a result ofexposure to water containing these chlorine compounds, af-fecting their performance for the intended use.5.3 This test method attempts to simulate service conditionsthrough controlled accelerated testing, but may not
13、 give adirect correlation with part performance under actual serviceconditions. It yields comparative data on which to basejudgement on expected service quality.5.4 This test method is suitable for compliance testing,quality control, and research and development work.1This test method is under the j
14、urisdiction of ASTM Committee D11 on Rubberand is the direct responsibility of Subcommittee D11.40 on Consumer RubberProducts.Current edition approved Dec. 10, 2002. Published December 2002. Originallyapproved in 1998. Last previous edition approved in 1998 as D 6284 98.2Annual Book of ASTM Standard
15、s, Vol 09.01.3Annual Book of ASTM Standards, Vol 11.01.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6. Test Conditions6.1 TemperatureUnless otherwise specified between theproducer and the purchaser, the preferred test temperature
16、shallbe 70 6 2C (158 6 4F).6.1.1 If the temperature of the testing room is other than thestandard 23 6 2C (73 6 4F), the actual room temperatureand any effect on the temperature of the test liquids shall bereported.6.2 Immersion PeriodsUnless otherwise specified, theimmersion periods shall be as ind
17、icated in Table 1, dependingon the anticipated service conditions.6.2.1 To obtain a measure on the rate of deterioration, it isnecessary to take measurements after several immersion peri-ods. The tolerance of the immersion times shall be 615 min or61 % of the specified time, whichever is greater.7.
18、Apparatus7.1 A three-necked flask4with a capacity of 2000 cm3shallbe mounted in an electric heating mantle5of sufficient size andwattage to maintain the specified temperature throughout thetest solution. The center neck of the flask shall be used forinserting and removing test pieces and shall be fi
19、tted with aremovable glass stopper. The other two necks of the flask shallbe tightly fitted with an immersion thermometer and a Grahamcondenser6with continuous cooling water supply.7.2 Test procedures utilizing continuous monitoring of testliquids and automatic addition of reagents may be used but c
20、anbe expected to produce different results than those obtained bythe procedures of this test method.8. Standard Test Liquids8.1 Standard test liquids are prepared in amber glass jars ofsufficient volume to hold 1900 cm3of the liquid.8.2 Fresh test solutions shall be prepared on a daily basis. Atno t
21、ime throughout the entire test period shall test pieces beallowed to remain in the same solution for more than 48 h.8.2.1 If the test period is to be 166 h or greater, the testsolutions shall be left unchanged for one day per week.8.3 Total residual chlorine levels of at least one freshlyprepared av
22、ailable chlorine and monochloramine solution shallbe determined weekly.8.4 Test solutions are heated in loosely sealed amber glassjars in a suitable water bath or hot forced-air oven to 70 6 2C(158 6 4F) prior to transferring them into test vessels inaccordance with Section 9.8.4.1 An acceptable alt
23、ernative method is the use of a glasscontainer of sufficient volume to prepare a large batch of testsolution capable of filling all test vessels with 1900 cm3ofsolution each. Prior to filling the test vessels, the liquid shall bestirred and checked with an immersion thermometer to ensurethat the spe
24、cified test temperature has been reached throughoutthe batch.8.5 Preparation of Standard Test Liquids and Solutions:8.5.1 Reagent WaterDistilled or deionized water (Type IIIor purer, see Specification D 1193) is heated to the testtemperature in a loosely sealed amber glass jar and transferredto the
- 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。
最后一页预览完了!喜欢就下载吧,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:
- ASTMD62842002STANDARDTESTMETHODFORRUBBERPROPERTY8212EFFECTOFAQUEOUSSOLUTIONSWITHAVAILABLECHLORINEANDCHLORAMINE
![提示](http://www.mydoc123.com/images/bang_tan.gif)
链接地址:http://www.mydoc123.com/p-522056.html