1、Designation: D 3715/D 3715M 98 (Reapproved 2004)Standard Practice forQuality Assurance of Pressure-Sensitive Tapes1This standard is issued under the fixed designation D 3715/D 3715M; the number immediately following the designation indicates theyear of original adoption or, in the case of revision,
2、the year of last revision. A number in parentheses indicates the year of lastreapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This practice contains u
3、niform quality assurance provi-sions for pressure-sensitive tapes and establishes samplingplans and procedures for acceptance inspection.1.2 Limitations:1.2.1 This practice only includes procedures for when anupper or a lower specification limit is given. It does not providefor double, both minimum
4、and maximum, specification limits.NOTE 1When double specification limits are given (applies to vari-ables testing only), use may be made of Table C-3 and Example C-3 ofANSI/ASQC Z1.9.1.2.2 The variables sampling plans apply to a single qualitycharacteristic. Having obtained the sample and the respon
5、ses tothe physical property tests, acceptance is determined on onequality characteristic at a time. The process is repeated for eachadditional characteristic.1.2.3 The variables sampling plans require that the responseto each quality characteristic is normally distributed eitherdirectly or by transf
6、ormation. If this is not known, the potentialuser of this practice should seek the counsel of someone withsufficient understanding of statistical techniques to provide thatinformation.1.3 The values stated in either SI or inch-pound units are tobe regarded separately as standard. The values stated i
7、n eachsystem may not be exact equivalents; therefore, each systemmust be used independently, without combining values in anyway.1.4 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
8、appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 996 Terminology of Packaging and Distribution Environ-ments2.2 ANSI/ASQC Standards:ANSI/ASQC A2 Terms, Symbols, and Definitions for Ac-ceptanc
9、e Sampling3ANSI/ASQC A3 Quality Systems Terminology4ANSI/ASQC Q94 Quality Management and Quality SystemElementsGuidelines4ANSI/ASQC Z1.4 Sampling Procedures and Tables forInspection by Attributes4ANSI/ASQC Z1.9 Sampling and Tables for Inspection byVariables for Percent Defective3. Terminology3.1 Def
10、initionsGeneral terms in this practice are definedin Terminology D 996,ANSI/ASQCA2, andANSI/ASQCA3.3.2 Definitions of Terms Specific to This Standard:3.2.1 acceptability criterionthe comparison made be-tween a factor, number, or constant found in the sampling planand the examination or test result i
11、nformation from a singlequality characteristic to determine if the lot should be acceptedor rejected. For inspection by attributes the acceptabilitycriterion is a comparison with the acceptability constant foundin Table 1.3.2.2 acceptable quality level (AQL)a nominal valueexpressed in terms of perce
12、nt defective or defects per hundredunits, whichever is applicable, specified for a given group ofdefects of a product (see ANSI/ASQC A2).3.2.3 defectany nonconformance of the unit of product tospecified requirements; it is classified according to its serious-ness.1This practice is under the jurisdic
13、tion of ASTM Committee D10 on Packaging,and is the direct responsibility of Subcommittee D10.14 on Tape and Labels.Current edition approved April 10, 1998. Published March 1999. Originallypublished as D 3715 78. Last previous edition D 3715 93e1.2For referenced ASTM standards, visit the ASTM website
14、, 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.3Available from Standardization Documents Order Desk, Bldg. 4 Section D, 700Robbins Ave., Philadelphia, PA 19111-50
15、94, Attn: NPODS.4Available fromAmerican Society for Quality (ASQ), 310 West WisconsinAve.,Milwaukee, WI 53203.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2.4 defects per hundred unitsof any given quantity ofunits of product, is
16、 the number of defects contained thereindivided by the total number of units of product, the quotientmultiplied by one hundred (one or more defects being possiblein any unit of product). Expressed as an equation:Defects per hundred units 5number of defects 3 100number of units inspected(1)3.2.5 defe
17、ctive unita unit of product that contains one ormore defects.3.2.6 end itemthe actual product or commodity being soldunder the material specification. It is in its most complete formand may be either packed for shipping or at a production stagejust preceding packing. It may or may not be the same as
18、 theunit of product defined in 3.2.17.3.2.7 end-item examinationthe inspection of the roll oftape for those characteristics which are either easily discernibleby visual inspection or can be simply measured by a hand rule(such as width). All characteristics of this type are consideredas attributes.3.
19、2.8 end-item testingthe inspection of the unit of productthat involves measurement of physical properties on a continu-ous scale. All characteristics of this type are considered asvariables.3.2.9 inspectionthe process of measuring, examining,testing, gaging, or otherwise comparing the unit of produc
20、twith the applicable requirements (see ANSI/ASQC A2).3.2.10 inspection by attributesinspection whereby eitherthe unit of product is classified simply as defective or non-defective or the number of defects in the unit of product iscounted, with respect to a given requirement or set of require-ments (
21、see ANSI/ASQC A2).3.2.11 inspection by variablesinspection wherein a speci-fied quality characteristic on a unit of product is measured ona continuous scale, such as pounds, inches, feet per second,etc., and a measurement is recorded (see ANSI/ASQC A2).3.2.12 inspection lota collection of units of p
22、roduct fromwhich a sample is drawn and inspected to determine compli-ance with the acceptability criteria.3.2.13 material specificationthat document covering aproduct or set of products and specifying the parameters thatdefine the product(s) (see ANSI/ASQC A3).3.2.14 percent defectivethe number of d
23、efective units ofproduct contained therein, divided by the total number ofproduct, the quotient multiplied by one hundred (a unit beingconsidered defective if it contains one or more defects).Expressed as an equation:Percent defective 5number of defective units 3 100number of units inspected(2)3.2.1
24、5 quality characteristicfor inspection, that charac-teristic of a unit of product that is actually measured todetermine conformance with a given requirement.3.2.16 specification limit(s)the requirement that a qualitycharacteristic should meet. This requirement may be expressedas an upper specificati
25、on limit, or a lower specification limit;called herein a single specification limit.3.2.17 unit of productthe entity of product inspected inorder to determine its measurable quality characteristic. Forthis practice the unit of product will usually be a roll of tape.The unit of product may or may not
26、 be the same as the unit ofpurchase, supply production, or shipment. It is also calledsample unit in this practice.4. Significance and Use4.1 The quality of a tape product is determined by thequality systems of the tape producer, including all processesinvolved in the engineering and production of t
27、he product. It isrecommended that appropriate sections ofANSI/ASQC Q94 beincluded in a producers quality systems.This practice does notintend to standardize these systems. A producers reputation, aproducers certification of conformance, or evidence of aproducers quality systems are often sufficient
28、to ensure apurchaser or user of a consistent quality. Acceptance samplingis useful when an objective basis of contract or specificationconformance is desired.4.2 The intention of this practice is to provide a reasonablysimple document which can be used by both the buyer andseller of pressure-sensiti
29、ve tape to determine if the productTABLE 1 Sampling Plans for Inspection by VariablesA(Variability UnknownSingle Specification Limit)Lot Size (100-m2yd2Units)SampleSizeAcceptable Quality Levels (Normal Inspection)SampleSizeAcceptable Quality Levels (Reduced Inspection).65 1.00 1.50 2.50 4.00 6.50 10
30、.00 1.00 1.50 2.50 4.00 6.50 10.00kkkk kkk kkkkkk1301toto30050034ll0.6510.5980.5870.5250.5020.4500.4010.3640.2960.27633lll0.5870.5870.5020.5020.4010.4010.2960.2960.1780.178501 to 800 5 0.663 0.614 0.565 0.498 0.431 0.352 0.272 3 l 0.587 0.502 0.401 0.296 0.178801 to 1 300 7 0.613 0.569 0.525 0.465 0
31、.405 0.336 0.266 3 0.587 0.502 0.401 0.296 0.1781 301 to 3 200 10 0.755 0.703 0.650 0.579 0.507 0.424 0.341 4 0.598 0.525 0.450 0.364 0.276 0.1763 2018 001toto8 00022 00015250.7920.8150.7380.7790.6840.7230.6100.6470.5360.5710.4520.4840.3680.398570.5650.5250.4980.4650.4310.4050.3520.3360.2720.2660.18
32、40.1891.00 1.50 2.50 4.00 6.50 10.00 15.00Acceptable Quality Levels (tightened inspection)AThis table contains information extracted from Tables A-2 (inspection level I), C-1, and C-2 from ANSI/ASQC Z1.9. = Use the first sampling plan below arrow including the larger sample size and the k value.k =
33、Acceptability constant.D 3715/D 3715M 98 (2004)2offered for sale meets some predetermined specification for theproduct. This practice offers the procedures for determining thesize of the sample to be inspected and the criteria fordetermining whether the lot (amount of material offered forsale) shoul
34、d be accepted or rejected. This practice draws fromand is based on bothANSI/ASQC Z1.4 andANSI/ASQC Z1.9.4.3 Two forms of sampling plans are included: sampling byattributes and sampling by variables. Sampling by attributes isused for end-item examination and both are used whereappropriate for end-ite
35、m testing. Sampling by attributes has theadvantage of simplicity while sampling by variables has theadvantage of costing less for the equivalent assurance of thecorrectness of decisions.4.3.1 Sampling plans for inspection by attributes (see Table2), should be used for end-item examination (see 5.3).
36、4.3.2 Sampling plans for inspection by variables (see Table1 and 5.4), should be used for end-item testing except asindicated in 5.4.1.2(a).4.4 Use of this practice assumes that a specification definingone or more quality characteristics exists. It is suggested thatbuyer and seller agree on acceptab
37、le quality levels (AQL) fromwithin the choices shown in the tables of this practice.4.5 When conditions warrant switching from normal totightened or reduced inspection, the appropriate sampling plansare available in Table 1 and Table 2. The decision to switchshould be agreed upon between the buyer a
38、nd the seller. Whenlots are rejected under normal inspection it is usual to go totightened inspection. No change in AQL is made, but theassurance of making the correct decision is improved usuallyby the sampling plan calling for a larger sample size. Reducedinspection is a switch from normal inspect
39、ion made when somenumber of lots, usually 10, passes in consecutive order.Switching should move from reduced to normal and fromnormal to tightened or from tightened to normal withoutskipping an intermediate step.5. Procedure5.1 Where it can be demonstrated that a suppliers qualitycontrol system prov
40、ides a similar degree of assurance as thatobtained through the use of this practice, the supplier may usethat system in place of the system described herein. In case ofconflict, the system described in this practice shall be used.5.2 Where applicable, inspection (examination or testing) atsome prior
41、 stage of manufacture, for example in-process or rawmaterial, can be used instead of inspection of the end item. Anexample of this might be the use of the tensile strength testperformed at the raw material testing stage rather than on theend item.5.3 End-Item Examination:5.3.1 Sampling:5.3.1.1 Lot S
42、ize, for the purpose of determining the samplesize, shall be expressed in units of rolls for examination under5.3.2.1-5.3.2.3 inclusive, and shall consist of all the tapematerial presented for examination at one time. The materialshall be of the same type, class, and color, manufactured by thesame p
43、rocess, from the same components, at one plant by onemanufacturer under the same conditions.5.3.1.2 Sample SizeThe number of units of product (rollsof tape) to be examined shall be found in Table 2 under samplesize. Use the sampling plans for normal inspection unlesstightened or reduced inspection h
44、as been specifically agreedupon.5.3.1.3 The following table illustrates the AQLs that havecommonly been used with the examinations found in 5.3.2.The graduation follows traditional levels of importance for theattributes collected together in the tables given in 5.3.2.1,5.3.2.2, and 5.3.2.3. Table 2
45、illustrates only these AQLs.Examination Paragraph AQL, %5.3.2.1 2.55.3.2.2 4.05.3.2.3 10.05.3.2 ExaminationExamine in accordance with the de-fects listed in 5.3.2.1, 5.3.2.2 and 5.3.2.3 andAQLs set forth inthe table in 5.3.1.3 when sampled from the shipment. No morethan two rolls, randomly selected,
46、 shall be drawn from any oneshipping container from each lot of material for each type andcolor of tape offered for inspection for visual and dimensionalcharacteristics.NOTE 2The same rolls of tape shall be used for examination underTABLE 2 Sampling Plans for Inspection by AttributesALot Size inNumb
47、er ofRollsNormal Inspection Tightened Inspection Reduced InspectionSam-pleSizeAQLSam-pleSizeAQLSam-pleSizeAQL2.5 4.0 10 2.5 4.0 10 2.5 4.0 10Ac Re Ac Re Ac Re Ac Re Ac Re Ac Re Ac Re Ac Re Ac Re215 2 |Ch |Co |Ch 2 |Ch |Ch |Ch 2 |Ch |Co |Ch1650 3 |Co 0 1 |Co 3 |Ch |Co |Ch 2 |Co 0 1 |Co51150 5 0 1 |Cu
48、 1 2 5 |Ch 0 1 |Ch 2 0 1 |Cu 0 2|Cu |Co |Ch |Co |Cu151500 8 |Co 2 3 8 0 1 |Ch 1 2 3 |Co 1 35013200 13 |Co 1 2 3 4 13 |Ch |Co 2 3 5 |Co 0 2 1 4320135 000 20 1 2 2 3 5 6 20 |Ch 1 2 3 4 8 0 2 1 3 2 5|Co35 001500 000 32 2 3 3 4 7 8 32 1 2 2 3 5 6 13 1 3 1 4 3 6500 001 and over 50 3 4 5 6 10 11 50 2 3 3
49、4 8 9 20 1 4 2 5 5 8AThis table is based on Tables I, II-A, II-B, and II-C of ANSI/ASQC Z1.4 using an inspection level of S-3.|Co = Use first sample plan below arrow. If sample size equals or exceeds lot or batch size, do 100 % inspection.|Cu = Use first sample plan above arrow.Ac = Acceptance number.Re = Rejection number.D 3715/D 3715M 98 (2004)35.3.2.1-5.3.2.3 inclusive, and these examinations should be made concur-rently.5.3.2.1 Major DefectsThe sample unit for this examina-tion shall be one roll.Examine Major DefectForm Not type, c
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