1、Designation: D4333/D4333M 05 (Reapproved 2010)1Standard Test Method for theCompatibility of Mechanical Pump Dispenser Components1This standard is issued under the fixed designation D4333/D4333M; the number immediately following the designation indicates theyear of original adoption or, in the case o
2、f revision, the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon () indicates an editorial change since the last revision or reapproval.1NOTEUnits information was corrected editorially in March 2011.1. Scope1.1 This test method covers testing
3、 of the components ofmechanical pump dispensers (spray or flow types) for compat-ibility with products.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be u
4、sed independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 This standard may involve hazardous materials, opera-tions, and equipment. This standard does not purport toaddress all of the safety concerns, if any, associated with itsuse. It i
5、s the responsibility of the user of this standard toconsult and establish appropriate safety and health practicesand determine the applicability of regulatory limitations priorto use.2. Significance and Use2.1 This test method identifies the compatibility of themechanical pump dispenser components w
6、ith consumer-typeproducts.3. Apparatus3.1 Balance, accurate to 1 mg.3.2 Micrometers, or calipers or other appropriate instru-ments, capable of measuring dimensions of test specimens to0.025 mm 0.001 in.3.3 Glass Containers, with covers, suitable for immersingtest specimens in test products.3.4 Oven,
7、 with chamber capable of maintaining temperaturewithin 62C 63.6F of the specified test temperatures.4. Test Specimen4.1 At least three individual components should be used foreach part tested with each product involved at each testcondition.4.2 At least three individual components are used as con-tr
8、ols at each test condition.4.3 Individual unassembled components shall be clean andpreviously unused.5. Conditioning5.1 Condition test specimens at 23 6 3C 73.46 5.4F forat least 4 h prior to testing. If test specimen conditioning is notpossible, the environmental conditioning of the test specimenst
9、ested should be included in the report as discussed in 7.1.5.2 Test conditions shall be an elevated temperature of 45 63C 113 6 5.4F and an ambient room temperature of 23 63C 73.4 6 5.4F. If a different temperature is used, thisshould be noted in the test report discussed in 7.1.6. Procedure6.1 Dime
10、nsional and Weight Changes:6.1.1 Prior to immersion into the product, weigh the partand record as W1 (see 7). Measure the thickness or overalllength of the part to the nearest 0.025 mm 0.001 in. of eachcomponent depending on which of these dimensions are mostimportant (for example, thickness for a g
11、asket or liner, andoverall length for a molded component). Optionally, measure adiameter of the part to its nearest 0.025 mm 0.001 in. Reportthe data as initial dimension D1 (see 7). This data is reportedas a mean value of the dimension for the components measuredfor that particular part.6.1.2 Maint
12、ain at least three test specimens as visual com-parison controls. Do not immerse these control test specimensin any solution and store at each test condition. Label thestorage container of these test specimens as control.6.1.3 Place the test specimens in appropriate containers forthe solutions being
13、 used and allow the test specimens to betotally immersed in fresh test product for 7 days in each testcondition. Several test specimens of a given material may be1This test method is under the jurisdiction of ASTM Committee D10 onPackaging and is the direct responsibility of Subcommittee D10.33 on M
14、echanicalDispensers.Current edition approved Oct. 1, 2010. Published March 2011. Originallyapproved in 1984. Last previous edition approved in 2005 as D4333 05. DOI:10.1520/D4333_D4333M-05R10E01.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, Unit
15、ed States.immersed in the same container provided sufficient product isavailable for the total surface area exposed. Cover the con-tainer.NOTE 1When the components being tested are of the same type but ofdifferent material, it is recommended that separate glass containers areused for each material f
16、or the purpose of eliminating unplanned materialinteractions and for ease of identification.6.1.4 After 7 days, remove all glass containers of testspecimens from the 45C environment, and allow the testspecimens to equilibrate to room temperature 23C for aminimum of 4 h.6.1.5 Carefully remove each te
17、st specimen from the glasscontainer, wipe dry, and remeasure the dimension(s) on eachpart as they were measured in 6.1.1. Be careful not to damageor distort the parts during removal. Measure parts immediately.Report the mean value of the dimensions measured at this timeas D2 (see 7.1).6.1.6 Weigh th
18、e test parts separately and report in 7 as W2.6.1.7 Observe the appearance of each test specimen afterexposure to the test product and compare the test specimens tothe controls described in 6.1.2. Observe and report appearanceon the basis of examination for loss of gloss, developed texture,decomposi
19、tion, discoloration, swelling, clouding, tackiness,rubberiness, crazing, bubbling, cracking, solubility, and soforth.6.1.8 Return test specimens to the test products and allowexposure in their respective environments for an additional 21days.6.1.9 After a total exposure of 28 days, remove the testsp
20、ecimens and repeat 6.1.5 and 6.1.7. Report the mean value ofthe final dimensions as D3 (see 7.1).6.1.10 After a total exposure of 28 days, remove the testspecimen and repeat 6.1.5 and 6.1.7. Report the mean value ofthe final weighs as W3 (see 7.1).7. Report7.1 The report shall include the following:
21、7.1.1 Complete identification of the material tested includ-ing type, source, manufacturers code, and information asappropriate,7.1.2 Temperature of tests,7.1.3 Test product(s),7.1.4 Duration of immersion,7.1.5 D1 data, that is, initial thickness, overall length, ordiameter(s), or a combination ther
22、eof, to the nearest 0.025 mm0.001 in.,7.1.6 D2 data, that is, thickness, overall length, or diam-eter(s), or a combination thereof, after immersion to the nearest0.025 mm 0.001 in.,7.1.7 D3 data, that is, final thickness, overall length, ordiameter(s), or a combination thereof, after immersion to th
23、enearest 0.025 mm 0.001 in.,7.1.8 The percentage dimensional change for the first 7 daysto the nearest 0.1 %, as calculated based upon the formula(D2-D1)/D13 100 in which positive percentages signify swelland negative outcomes signify shrinkage,7.1.9 The percentage dimensional change for the 28 days
24、 tothe nearest 0.1 %, as calculated based upon the formula(D3-D1)/D13 100 in which positive percentages signifyshrinkage and negative outcomes signify swell, and7.1.10 General appearance of test specimens after immer-sion along with the appearance of the product.7.1.11 W1initial weight data within t
25、wo decimal places.7.1.12 W27day weight data within two decimal places.7.1.13 W328day weight data within two decimal places.7.1.14 The percentage weight change for the first 7 days tothe nearest 0.1%,ascalculated based upon the formula(W2W1) 3 100, in which positive percentages signify swelland negat
26、ive outcomes signify shrinkage.7.1.15 The percentage weight change for 28 days to thenearest 0.1 %, as calculated based upon the formula(W3W1)/W1 3 100, in which positive percentages signifyswell and negative outcomes signify shrinkage.8. Precision and Bias8.1 PrecisionThe precision of Test Method D
27、4333 ishighly dependent on the particular component material andcontents tested. One laboratory has investigated one particularpolyethylene pump gasket and a hair spray product with threereplicate tests, yielding the results given in Table 1. Otherpumps and contents will have other averages of dimen
28、sionalchanges due to chemical compatibility and will have more orless variability between replicate tests. Users of this testmethod are encouraged to reference historical files of previoustests of similar pump components and contents for an estimateof within-laboratory repeatability. Because of this
29、 strong prod-uct and component material dependency, further investigationof repeatability and reproducibility is not practicable.8.2 BiasTest Method D4333 has no bias because anaccepted reference or referee value is not available.9. Keywords9.1 chemical resistance; compatibility; mechanical pumpdisp
30、enser componentsD4333/D4333M 05 (2010)12ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the
31、 riskof 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 every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of
32、 this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldm
33、ake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained
34、 by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).TABLE 1 Interlaboratory Test
35、 ResultsThickness DiameterAverage, in. Shrink or Swell,%StandardDeviation, in.Maximum, in. Minimum, in. Average, in. Shrink orSwell, %StandardDeviation, in.Maximum,in.Minimum,in.Initial 0.0613 . . . 0.0006 0.062 0.061 0.8548 . . . 0.002 0.8566 0.85307-day 0.0613 0 0.0006 0.062 0.061 0.8546 0.02shrink0.002 0.8566 0.852628-day 0.0623 1.63 swell 0.0006 0.063 0.062 0.8556 0.09 swell 0.006 0.8573 0.8539D4333/D4333M 05 (2010)13
