ASTM F1886 F1886M-2009(2013) Standard Test Method for Determining Integrity of Seals for Flexible Packaging by Visual Inspection《采用目视检查测定软包装密封完整性的标准试验方法》.pdf
《ASTM F1886 F1886M-2009(2013) Standard Test Method for Determining Integrity of Seals for Flexible Packaging by Visual Inspection《采用目视检查测定软包装密封完整性的标准试验方法》.pdf》由会员分享,可在线阅读,更多相关《ASTM F1886 F1886M-2009(2013) Standard Test Method for Determining Integrity of Seals for Flexible Packaging by Visual Inspection《采用目视检查测定软包装密封完整性的标准试验方法》.pdf(4页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: F1886/F1886M 09 (Reapproved 2013)Standard Test Method forDetermining Integrity of Seals for Flexible Packaging byVisual Inspection1This standard is issued under the fixed designation F1886/F1886M; the number immediately following the designation indicates the yearof original adoption or
2、, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers the determination of channels inthe package seal down t
3、o a width of 75 m 0.003 in. with a60100 % probability (see Section 8).1.1.1 The ability to visually detect channel defects inpackage seals is highly dependent on the size of channel, thedegree of contrast from sealed and unsealed areas, the amountand type of adhesive between the two package layers,
4、reflect-ing light angle, types of material used, the use of magnification,and the inspectors level of training and experience.1.2 This test method is applicable to packages with at leastone transparent side so that the seal area may be clearlyviewed.1.3 The values stated in either SI units or inch-p
5、ound unitsare to be regarded separately as standard. The values stated ineach system may not be exact equivalents; therefore, eachsystem shall be used independently of the other. Combiningvalues from the two systems may result in non-conformancewith the standard.1.4 This standard does not purport to
6、 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 applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2F17 Termi
7、nology Relating to Flexible Barrier Packaging3. Terminology3.1 For terminology related to flexible barrier packaging,see Terminology F17.4. Summary of Test Method4.1 This test method provides a qualitative (accept/reject)visual inspection method to evaluate the appearance character-istics of unopene
8、d, intact seals in order to determine thepresence of defects that may affect the integrity of the package.5. Significance and Use5.1 Seal attributes can be linked directly to a number ofvariables in process parameters, equipment, or material, as wellas environmental (room temperature and relative hu
9、midity).Visual seal characteristics and defects can provide evidence ofpackage integrity and production sealing problems.5.2 Visual seal defects often will be the first indication ofheat sealing process variation. They also will indicate a lack of,or potential compromise to, package integrity after
10、physicalpackage performance testing.6. Apparatus6.1 Illuminant, lighting arrangements to give about 540lumens/m250 fc of white light or daylight on the specimens.6.2 Indelible Marking Pen.7. Procedure7.1 Visual acuity shall be such that the inspection of the sealmay be performed at a distance of 30
11、to 45 cm 12 to 18 in.NOTE 1Magnification devices, such as eyeloops, may be used as ananalytical tool to characterize identified seal defects.7.2 Inspect the entire sealed area of the package for com-pleteness and uniformity.NOTE 2Different package sizes and shapes may require differinglengths of tim
12、e to adequately inspect the entire seal perimeter. Any timerequirement associated with visual inspection should allow for completeseal inspection.NOTE 3Some packaging materials and adhesives may fluoresce underultraviolet light. Viewing the seal area in a UV light box will enhance thesealed-to-unsea
13、led area contrast, and provide for easier defect identifica-tion.7.3 Identify and record any part of the seal where channelsappear. Mark the location of the channels.NOTE 4All other assessed defects (refer to Appendix X1) should becategorized according to user defined accept/reject criteria. Define
14、the1This test method is under the jurisdiction of ASTM Committee F02 on FlexibleBarrier Packaging and is the direct responsibility of Subcommittee F02.40 onPackage Integrity.Current edition approved Aug. 1, 2013. Published September 2013. Originallyapproved in 1998. Last previous edition approved in
15、 2009 as F1886/F1886M 09.DOI: 10.1520/F1886_F1886M-09R13.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copy
16、right ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1actions to be taken in the event defects are detected during normalproduction runs.7.4 Record the number and location of channels identifiedon each package.NOTE 5If confirmation of channels
17、or incomplete seal areas inpeelable packages is necessary, hand peel such suspected packagecompletely separating the two material components and inspect the sealarea of the transferred adhesive for the same incomplete seal attributes asthe unopened package. Care should be taken to ensure a smoothcon
18、tinuous peeling motion so as not to cause any extraneous attributes.Heat seals should be cooled to ambient conditions before peeling open toallow for adhesive bonding to the opposite substrate to occur.In some instances, a channel or unsealed area may be observed onlyafter the package is peeled open
19、. Adhesive transfer is a qualitativemeasure of a materials ability to release the coating rather than conclusiveevidence that the seal has not been made. It is possible to have continuousseal integrity but fail to give complete transfer. This is because the coatingmay have a stronger affinity for th
20、e substrate on which it is coated ratherthan the one to which it is sealed. In such cases, an additional physical sealintegrity test may be required to confirm if it is an unsealed area.8. Precision and Bias38.1 A round robin study was conducted in 1997, whichincluded ten laboratories, four package
21、types, and two differentchannel sizes randomly produced with 75 m 0.003 in. and125 m 0.005 in. diameter wire. The negative control consistsof the same type packages produced with no channels. The fourdifferent types of packages are:8.1.1 Open pouchclear film/coated paper;8.1.2 Open pouchclear film/u
22、ncoated TYVEK4;8.1.3 Sealed blisterblue tinted blister/coated TYVEK;and,8.1.4 Open end pouchclear film/clear film (clear seal).8.2 The results of this study are pass or fail; therefore, thedata is binomial with an expected average of np and anexpected variance of npq where n is the number of samples
23、, pis the probability of an incorrect evaluation, and q is theprobability of a correct evaluation. A statistical analysis of thedata by means of a contingency table show significant differ-ences between all factors presented in the tables at a confidencelevel of better than 99 %. The results are pre
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