1、Designation: D4333/D4333M 05 (Reapproved 2010)1D4333/D4333M 18Standard Test Method Practice 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 ad
2、option or, in the case of 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.1 NOTEUnits information was corrected editorially in March 2011.1. Scope1.1 This t
3、est method practice covers testing of the components of mechanical pump dispensers (spray or flow types) forcompatibility with products.1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in eachsystem may not be exact equivalents
4、; therefore, each system shall be used independently of the other. Combining values from thetwo systems may result in non-conformance with the standard.1.3 This standard may involve hazardous materials, operations, and equipment. This standard does not purport to address allof the safety concerns, i
5、f any, associated with its use. It is the responsibility of the user of this standard to consult and establishappropriate safety safety, health, and healthenvironmental practices and determine the applicability of regulatory limitations priorto use.1.4 This international standard was developed in ac
6、cordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Significance and Use2.1 This
7、 test method practice identifies the compatibility of the mechanical pump dispenser components with consumer-typeproducts.3. Apparatus3.1 Balance, accurate to 1 mg.3.2 Micrometers, or calipers or other appropriate instruments, capable of measuring dimensions of test specimens to 0.025 mm0.001 in.3.3
8、 Glass Containers, with covers, suitable for immersing test specimens in test products.3.4 Oven, with chamber capable of maintaining temperature within 62C 63.6F of the specified test temperatures.4. Test Specimen4.1 At least three individual components should be used for each part tested with each
9、product involved at each test condition.4.2 At least three individual components are used as controls at each test condition.4.3 Individual unassembled components shall be clean and previously unused.5. Conditioning5.1 Condition test specimens at 23 6 3C 73.46 5.4F for at least 4 h prior to testing.
10、 If test specimen conditioning is notpossible, the environmental conditioning of the test specimens tested should be included in the report as discussed in 7.1.5.2 Test conditions shall be an elevated temperature of 45 6 3C 113 6 5.4F and an ambient room temperature of 23 6 3C73.4 6 5.4F. If a diffe
11、rent temperature is used, this should be noted in the test report discussed in 7.1.1 This test method practice is under the jurisdiction ofASTM Committee F02 on FlexiblePrimary Barrier Packaging and is the direct responsibility of Subcommittee F02.30on Mechanical Pump Dispensers.Current edition appr
12、oved Oct. 1, 2010May 1, 2018. Published March 2011June 2018. Originally approved in 1984. Last previous edition approved in 20052010 asD4333 05.D4333/D4333M 05(2010)1. DOI: 10.1520/D4333_D4333M-05R10E01.10.1520/D4333_D4333M-18.This document is not an ASTM standard and is intended only to provide the
13、 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 users consult prior editions as appropriate. In all cases only the current versionof the standar
14、d 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 States16. Procedure6.1 Dimensional and Weight Changes:6.1.1 Prior to immersion into the product, weigh the part and record as W1
15、 (see 7). Measure the thickness or overall length ofthe part to the nearest 0.025 mm 0.001 in. of each component depending on which of these dimensions are most important (forexample, thickness for a gasket or liner, and overall length for a molded component). Optionally, measure a diameter of the p
16、artto its nearest 0.025 mm 0.001 in. Report the data as initial dimension D1 (see 7). This data is reported as a mean value of thedimension for the components measured for that particular part.6.1.2 Maintain at least three test specimens as visual comparison controls. Do not immerse these control te
17、st specimens in anysolution and store at each test condition. Label the storage container of these test specimens as control.6.1.3 Place the test specimens in appropriate containers for the solutions being used and allow the test specimens to be totallyimmersed in fresh test product for 7 days in ea
18、ch test condition. Several test specimens of a given material may be immersed inthe same container provided sufficient product is available for the total surface area exposed. Cover the container.NOTE 1When the components being tested are of the same type but of different material, it is recommended
19、 that separate glass containers are usedfor each material for the purpose of eliminating unplanned material interactions and for ease of identification.6.1.4 After 7 days, remove all glass containers of test specimens from the 45C environment, and allow the test specimens toequilibrate to room tempe
20、rature 23C for a minimum of 4 h.6.1.5 Carefully remove each test specimen from the glass container, wipe dry, and remeasure the dimension(s) on each part asthey were measured in 6.1.1. Be careful not to damage or distort the parts during removal. Measure parts immediately. Report themean value of th
21、e dimensions measured at this time as D2 (see 7.1).6.1.6 Weigh the test parts separately and report in 7 as W2.6.1.7 Observe the appearance of each test specimen after exposure to the test product and compare the test specimens to thecontrols described in 6.1.2. Observe and report appearance on the
22、basis of examination for loss of gloss, developed texture,decomposition, discoloration, swelling, clouding, tackiness, rubberiness, crazing, bubbling, cracking, solubility, and so forth.6.1.8 Return test specimens to the test products and allow exposure in their respective environments for an additi
23、onal 21 days.6.1.9 After a total exposure of 28 days, remove the test specimens and repeat 6.1.5 and 6.1.7. Report the mean value of the finaldimensions as D3 (see 7.1).6.1.10 After a total exposure of 28 days, remove the test specimen and repeat 6.1.5 and 6.1.7. Report the mean value of the finalwe
24、ighs as W3 (see 7.1).7. Report7.1 The report shall include the following:7.1.1 Complete identification of the material tested including type, source, manufacturers code, and information as appropriate,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
25、, initial thickness, overall length, or diameter(s), or a combination thereof, to the nearest 0.025 mm 0.001in.,7.1.6 D2 data, that is, thickness, overall length, or diameter(s), or a combination thereof, after immersion to the nearest 0.025mm 0.001 in.,7.1.7 D3 data, that is, final thickness, overa
26、ll length, or diameter(s), or a combination thereof, after immersion to the nearest0.025 mm 0.001 in.,7.1.8 The percentage dimensional change for the first 7 days to the nearest 0.1 %, as calculated based upon the formula(D2-D1)/D1 100 in which positive percentages signify swell and negative outcome
27、s signify shrinkage,7.1.9 The percentage dimensional change for the 28 days to the nearest 0.1 %, as calculated based upon the formula(D3-D1)/D1 100 in which positive percentages signify shrinkage and negative outcomes signify swell, and7.1.10 General appearance of test specimens after immersion alo
28、ng with the appearance of the product.7.1.11 W1initial weight data within two 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 to the nearest 0.1 % , as calculated based up
29、on the formula (W2W1) 100, in which positive percentages signify swell and negative outcomes signify shrinkage.7.1.15 The percentage weight change for 28 days to the nearest 0.1 %, as calculated based upon the formula (W3W1)/W1 100, in which positive percentages signify swell and negative outcomes s
30、ignify shrinkage.8. Precision and Bias8.1 PrecisionThe precision of Test Method Practice D4333D4333/D4333M is highly dependent on the particular componentmaterial and contents tested. One laboratory has investigated one particular polyethylene pump gasket and a hair spray productwith three replicate
31、 tests, yielding the results given in Table 1. Other pumps and contents will have other averages of dimensionalD4333/D4333M 182changes due to chemical compatibility and will have more or less variability between replicate tests. Users of this test methodpractice are encouraged to reference historica
32、l files of previous tests of similar pump components and contents for an estimate ofwithin-laboratory repeatability. Because of this strong product and component material dependency, further investigation ofrepeatability and reproducibility is not practicable.8.2 BiasTest Method Practice D4333D4333/
33、D4333M has no bias because an accepted reference or referee value is notavailable.9. Keywords9.1 chemical resistance; compatibility; mechanical pump dispenser componentsASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin
34、this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the 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
35、 be reviewed every five years andif not revised, either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of there
36、sponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake 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,
37、West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained 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 r
38、ights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 1 Interlaboratory Test 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 183
