1、Designation: D 4333 05Standard Test Method for theCompatibility of Mechanical Pump Dispenser Components1This standard is issued under the fixed designation D 4333; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last re
2、vision. 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 testing of the components ofmechanical pump dispensers (spray or flow types) for compat-ibility with
3、 products.1.2 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 is the responsibility of the user of this standard toconsult and establish appropriate safety and health pr
4、acticesand determine the applicability of regulatory limitations priorto use.2. Significance and Use2.1 This test method identifies the compatibility of themechanical pump dispenser components with consumer-typeproducts.3. Apparatus3.1 Balance, accurate to 1 mg.3.2 Micrometers, or calipers or other
5、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, with chamber capable of maintaining temperaturewithin 62C (63.6F) of the specified test temperatures.4
6、. 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-trols at each test condition.4.3 Individual unassembled components shall be clean andpreviously unused.
7、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 specimenstested should be included in the report as discussed in 7.1.5.2 Test conditions shall be an elevated
8、 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 Dimensional and Weight Changes:6.1.1 Prior to immersion into the product, weigh the partand record
9、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 gasket or liner, andoverall length for a molded component). Optionally, measure adiameter of t
10、he 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 Maintain at least three test specimens as visual com-parison controls. Do not immerse these con
11、trol 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 used and allow the test specimens to betotally immersed in fresh test product for 7 days
12、in each testcondition. Several test specimens of a given material may beimmersed 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 recommen
13、ded that separate glass containers areused for each material for 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 temp
14、erature (23C) for aminimum of 4 h.1This test method is under the jurisdiction of ASTM Committee D10 onPackaging and is the direct responsibility of Subcommittee D10.33 on MechanicalDispensers.Current edition approved Oct. 1, 2005. Published November 2005. Originallyapproved in 1984. Last previous ed
15、ition approved in 1999 as D 4333 99.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6.1.5 Carefully remove each test specimen from the glasscontainer, wipe dry, and remeasure the dimension(s) on eachpart as they were measured in 6.1.
16、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 the test parts separately and report in 7 as W2.6.1.7 Observe the appearance of each test specimen afterexposure to the t
17、est 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,decomposition, discoloration, swelling, clouding, tackiness,rubberiness, crazing, bubbling, cracking, solubility, and soforth.6.
18、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 testspecimens 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 e
19、xposure 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:7.1.1 Complete identification of the material tested includ-ing type, source, manufacturers code, and information asapp
20、ropriate,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 thereof, to the nearest 0.025 mm(0.001 in.),7.1.6 D2 data, that is, thickness, overall length, or diam-eter(s), or a combin
21、ation 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 thenearest 0.025 mm (0.001 in.),7.1.8 The percentage dimensional change for the first 7 daysto the nearest 0.1 %, as
22、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 tothe nearest 0.1 %, as calculated based upon the formula(D3-D1)/D13 100 in which positive percentages signifysh
23、rinkage 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 two decimal places.7.1.12 W27day weight data within two decimal places.7.1.13 W328day weight data within two decim
24、al 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 negative outcomes signify shrinkage.7.1.15 The percentage weight change for 28 days to thenearest 0.1 %, as calculated
25、 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 4333 ishighly dependent on the particular component material andcontents tested. One laboratory has investigated
26、 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 dimensionalchanges due to chemical compatibility and will have more orless variability between replicate tests. Users
27、 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 strong prod-uct and component material dependency, further investigationof repeatability and reproducibility is
28、 not practicable.8.2 BiasTest Method D 4333 has no bias because anaccepted reference or referee value is not available.9. Keywords9.1 chemical resistance; compatibility; mechanical pumpdispenser componentsD4333052ASTM International takes no position respecting the validity of any patent rights asser
29、ted 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 riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by
30、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 this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receiv
31、e 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 shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM Intern
32、ational, 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 by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through
33、 the ASTM website(www.astm.org).TABLE 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 0.8539D4333053
