1、. . . . . . ,.” ,;“ . . . . . . I b.,.9. ,.,.,!-. . ,. . -;MILITARY SPECIFICATIOIVMIL-T+608G March 1971SUPERSEDINGKrbT-5608F(AsG )9J 1965TAPE,TEXTILE: WEBBING TEXTILEThis specificationis mandatory for use by aJJ hpti-ments and Agencies of the Departmentof Defense.1. SCOPE1.1 scope. This specificatio
2、ncovers five classes of nylon tapes used in thefabricationof canopies of ribbon parachutes.*1.2 Classification.The tapes shall be furnished in the various classes andtypes indicated in Table X, as specified (see 6.2).2* APPLICABLE DOCUMENTSa71 2.1 The following documentsof the issuebids or request f
3、or proposal, form a part8pecitied herein.SPECIFICATIONSKilitsrylabw-43334in effect on date of invitationforof the specificationto the extent. .Webbing And Tape, Textile, PackagingAnd Packing OfSTANDARDS. FederalFED-STD-191FED-STD-595MilitEuyMIXAWD-105(Copiesof specifications,Textile Test MethodsColo
4、rsSampling ProceduresAnd Tables ForInspectionBy Attributesstandards,drawings, and publicationsreauired bvsuppliers in connection.with specificprocurement functions should e obtained.fkom the procuring activity or as directed by the contractingofficer.)* 2.2 Other wblications. The following document
5、forms a part of this specifi-cation to the extent specifiedherein. Unless otherwise indicated,the issuein effect on date of Invitation for bids or request for proposal shall apply.FSC 8315Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- . . . , . . .
6、 . -.-, . . . -. :.-*. .MIL-T-%08G .Rules,.AndRegulationsUnder The Textile Fiber(Applicationfor copies should be addressed to theWashington DC 20580.)3* REQUDUMENTS .Roducts IdentificationActFederal Trade Commission,3.1 Material. The nylon used in the numufactwe of class A tapes shaU bes-d tenacity,
7、 light-reslstt Y=sc The nylon used In the manu-facture of classes B, C, D, and E shall b bright, high-tenacity,heat- andlight-resistentyarns. The nylon yams used for all claases shall be polyamideprepared mom hexamethylene diamine and adipic acid or its derivativesandshall have a minimum melting poi
8、nt of 2b4.Centigrade (C)when tested inaccordancewith method 1534 of FEIHTD-191. The yarn shsll not be bleachedin any manner or process (see 4.2.3.3).3.1.1 mist. The v- and filling yarn for classes A, B, and C shall have10 turns Al turn af “Z” twist per inch. For class D, all types, and class E,types
9、 I, II, III, and IV, the warp yarns shall have 1 turn fi/2 tum of “Z”twist per inch, and the fiUing Y-S shall have a minimum of 2-1/2 turns of“S” twist per inch: For class E, types V and VI, the V6UPand fillingymsshall have a minimum of 2-1/2 turns of either “S” or “Z” tvlst per inch.3.1.2 Fiber ide
10、ntification. Each spool of tape shall be labeled or ticketed,and invoiced for fiber content in accordancewith the rules and regulationsunder the Textile Fiber Products IdentificationAct (see 4.2.2.2.1).3.2 Weave.3.2.1 Body. Unless otherwise specified,the body weave shall be a conven-tional two-up an
11、d two-down, right-hand twill, except that for class E, type VI,the varp ends shall veave tvo ends as one.3.2.2 Selvaue. Unless otherwise specified,the selvageveave for classesA,B, and C shall be a double weave of a conventionalhatband type. For classesD and E, there shall be no additional selvage en
12、ds.3.3 Physical and chemical Properties. The physical snd chemicalpropertiesofthe finished tape shall confom to Table I d 3.3.1 through 3.3.“. . TABLE II. Testing of ComponentsCharacteristic.Warp and fillingY-S:TenaeityLusterMelting point “Twist per inch (single)Twist per inch (ply)Direction of test
13、Denier *Ply “) ,“Require- No. determinationsment Test per individualpara. method uit Or ptimI3*1 hloo.13*1 visual * b.2.3.l Resistance to heat and light. Three sets of five vsrp and five fill-ing test specimens shall be selected for determiningresistanceto heat and tolight. Each of the warp specimen
14、s shall contain identicalwarp yarn and eachof the filling specimens shall contain identical fillingyarn. One set of warpand fiing specimens shall be tested for breaking strength in accordancewith!4dhods 510b and 4108.1 of FED-STD-191tithout Y exPose. other set ofwarp and filling specimens shall be t
15、ested as specified in 4.2.3.1.1. The thirdset of v.srp and filling specimens shall be tested as specifiedin 4.2.3.1.2.(see3*3*3)* k.2.3.l.l Resistance to light. Five warp and five filling specimensshall bea71moaed in the acceleratedfeathering unit as specifiedin Method 58o4 ofFE&3TD-191 except the v
16、ater spray nozzle shall be off. The specimensshall beplaced side by side on the rack using no backing in such a manner that thespecimen shall be exposed unifomly. The exposure time shall be 50 hours.Relative humidity of 55 percent at lS5F shl be intned durin the entireexposure period. At the end of
17、the exposure period, the specimensshall bebrought to equilibriumunder standard conditionsdefined in FED-STD-191. Thespecimen shall then be tested for bretiing strenh in accordmce tith Methods5104 and 4108.1 of FED-STD-191,and the percent of breaking strenh (B.S.)lost shall be computed as follows:Per
18、cent of B.S. lost = oriin B.S. - B-s- afier aing= 100 original B.S.10- “ v v - . / . H-w- - - . . - . - wwu.-4Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- . .- .- : .,/ .“. ., .“ .,-, . . #“,.”4 . . . . . . . . . . .,.“ . ,. ,., ,.-. . 4.”.,(lp-.
19、 . .,. . .“*: .I CharacteristicIWeaveWeight (rein)Number ends (rein):TotalSelvagePicks per inchBreaking strengthand elongation(ab)/ (rein)Class D and E Breaking strengthand elongation(=1) (n)Air permeabilityColorfastnessto:Light yCrockingAcidity-alkalinity(pH)MIL-T-5608G-TABLE V. Test MethodsRequire
20、mentparagraph3*2Table ITable ITable ITable ITable ITable ITable ITable ITable ITable I3.3.2.21-3.3.2.23.3.1TestmethodVimal5040-5050510051004108.1510451045450566056512811Results reported asPass or fallIn yds/lb to nearest 0.1 yda71Actual countActual.countNearest vhole numberNeareqt 1.0 lbNearest 1.0
21、percentNearest 1.0 lbNearest 1.0 percentNearest 1.0 lbNearest 1.0 percentNearest 0.1 cubic footGood, fair, or poorGood, fair, or poorL.Nearest 0.2 pH.Except that the breaking strength determinationshall be made on the fulluidtk of the tape. The-grab aws shall measure 1 inch by 3 inches dshall be pad
22、ded with a cushioningmaterial in order to protect the raisedselvages. Not applicable for class B, type VI. The following exceptionsto method 5100 are optional.(a) Split-drumte Jaws.(b) No-load rate of separationat 4 inches perminutem-imm.(c) Distance between the - centers shall be 10 ZL/16 inch.Four
23、 inch gage marks shall be placed at the center of the sample undernominal tension (1 percent minimum breaking strenh) me elongationshall be taken by measuring the separationof the gage marks at thespecified minimum breaking strength. .Applicable for class B, type VI, only. be inch by 3 inch grab jaw
24、s shallbe used.Except that the fabric orifice shall have an area of 1 squ=e inch.Except that the time of exposure shall be 20 standard fading hours.a71.11Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-,. .,*a,-wmrma me PSC9 a71 MODEPARTMENTOF TEE AIR FORCESAN ANTONIOAIR MATERIELAREASERVICEENGINEERINGDIVISION(MKEOB)mm m, mm 782U3!.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
