1、Beneficial comments (recommendations, additions, deletions) and anypertinent data which may be of use in improving this document shouldbe addressed to: Department of the Navy, Naval Sea Systems Command,ATTN: SEA 05Q, 1333 Isaac Hull Avenue Southeast, Stop 5160, WashingtonNavy Yard, DC 20376-5160, by
2、 using the Standardization DocumentImprovement Proposal (DD Form 1426) appearing at the end of thisdocument or by letter.METRICMIL-PRF-24793A27 December 2001SUPERSEDINGMIL-PRF-247931 June 1995PERFORMANCE SPECIFICATIONADHESIVE, UV CURABLE, ONE PART, FIBER OPTICSThis specification is approved for use
3、by the Naval Sea SystemsCommand, Department of the Navy, and is available for use by allDepartments and Agencies of the Department of Defense.1. SCOPE1.1 Scope. This specification covers the requirements of a liquid adhesivefor bonding optical fibers to glass fiber optic splice, connector, andtermin
4、us ferrules.2. APPLICABLE DOCUMENTS2.1 General. The documents listed in this section are specified insections 3 and 4 of this specification. This section does not includedocuments cited in other sections of this specification or recommended foradditional information or as examples. While every effor
5、t has been made toensure the completeness of this list, document users are cautioned that theymust meet all specified requirements documents cited in sections 3 and 4 ofthis specification, whether or not they are listed.2.2 Non-Government publications. The following documents form a part ofthis docu
6、ment to the extent specified herein. Unless otherwise specified, theissues of the documents which are DoD adopted are those listed in the issue ofthe DODISS cited in the solicitation. Unless otherwise specified, the issuesof documents not listed in the DODISS are the issues of the documents cited in
7、the solicitation (see 6.2).AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)ASTM D542 - Standard Test Method for Index of Refraction ofTransparent Organic Plastics. (DoD adopted)ASTM D570 - Standard Test Method for Water Absorption of Plastics.(DoD adopted)ASTM D696 - Standard Test Method for Coeffi
8、cient of Linear ThermalExpansion of Plastics Between-30OC and 30OC. (DoDadopted)AMSC N/A FSC 6070DISTRIBUTION STATEMENT A. Approved for public release; distribution isunlimited.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-24793A 2 AMERICAN
9、 SOCIETY FOR TESTING AND MATERIALS (ASTM) - ContinuedASTM D1002 - Standard Test Method for Strength Properties of Adhesivesin Shear by Tension Loading (Metal to Metal). (DoDadopted)ASTM D1084 - Standard Test Method Viscosity of Adhesives. (DoDadopted)ASTM D2240 - Standard Test Method for Rubber Prop
10、erty - DurometerHardness. (DoD adopted)ASTM D2566 - Standard Test Method for Linear Shrinkage ofThermosetting Casting Systems During Cure.ASTM D3418 - Standard Test Method for Transition Temperatures ofPolymers by Thermal Analysis. (DoD adopted)(Application for copies should be addressed to American
11、 Society for Testingand Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.)ELECTRONIC INDUSTRIES ASSOCIATION/TELECOMMUNICATIONS INDUSTRY ASSOCIATION(EIA/TIA)TIA/EIA-455-5 - Humidity Test Procedure for Fiber Optic Components.(DoD adopted)TIA/EIA-455-71 - Procedure to Measure Temperat
12、ure-Shock Effects onFiber Optic Components.(Application for copies should be addressed to the TelecommunicationsIndustry Association, 2500 Wilson Boulevard, Arlington, VA 22201.)2.3 Order of precedence. In the event of a conflict between the text ofthis document and the references cited herein (exce
13、pt for related associatedspecifications, specification sheets, or MS standards), the text of thisdocument takes precedence. Nothing in this document, however, supersedesapplicable laws and regulations unless a specific exemption has been obtained.3. REQUIREMENTS3.1 Acquisition requirements. The indi
14、vidual item requirements shall be asspecified herein and in accordance with the acquisition documents. In theevent of any conflict between the requirements of this specification and theacquisition documents, the latter shall govern.3.2 First article. When specified (see 6.2), a sample shall be subje
15、ctedto first article inspection (see 6.3) in accordance with 4.4.3.3 Materials. The cured adhesive material shall not produce toxic,corrosive, or explosive byproducts. All materials are subject to atoxicological data and formulations review and inspection, for safety of thematerial, by the Governmen
16、t.3.3.1 Recycled, recovered, or environmentally preferable materials.Recycled, recovered, or environmentally preferable materials should be used tothe maximum extent possible provided that the material meets or exceeds theoperational and maintenance requirements, and promotes economicallyadvantageou
17、s life cycle costs.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-24793A 3 3.4 Composition. The adhesive shall be a one component, liquid, adhesive.The adhesive shall be capable of being cured by exposure to ultraviolet (UV)electromagnetic r
18、adiation.3.5 Performance requirements. The performance requirements shall bedefined in terms of the mechanical, environmental, and chemical properties.3.5.1 Viscosity (see 4.6.1). The uncured adhesive viscosity shall be notless than 100 cp and not greater than 2,000 cp at +25OC 5OC.3.5.2 Shelf life
19、(see 4.6.2). The uncured adhesive shall have a shelf lifenot less than 18 months at +25OC 5OC (see 6.6). The 18-month periodcommences on the date of the adhesive manufacture. The uncured adhesive shallmeet the requirements of 3.5.1. When cured in accordance with 3.5.4, theadhesive shall meet the req
20、uirements of 3.5.5, 3.5.6, and 3.5.7.3.5.3 Storage temperature (see 4.6.2). The uncured adhesive shall becapable of storage at temperatures from -40OC to +50OC. After storage, theuncured adhesive shall meet the requirements of 3.5.1. When cured inaccordance with 3.5.4, the adhesive shall meet the re
21、quirements of 3.5.5,3.5.6, and 3.5.7.3.5.4 Cure schedule (see 4.6.3). The adhesive shall meet the requirementsof 3.5.5, 3.5.6, 3.5.7, 3.5.8, 3.5.10, 3.5.11, and 3.5.12 when exposed to UVradiation (radiant intensity 0.006 W/cm2) for a time period sufficient tocompletely cure the bulk material sample.
22、 The adhesive shall meet therequirements of 3.5.15 when exposed to UV radiation with a radiant intensityof 0.003 W/cm2for 2 1 minutes at +25OC 5OC.3.5.5 Linear shrinkage (see 4.6.4). The adhesive shall have a linearshrinkage of not greater than 2 percent when cured in accordance with 3.5.4.3.5.6 Har
23、dness (see 4.6.5). When cured in accordance with 3.5.4, theadhesive shall have a Shore D hardness not less than 65.3.5.7 Bond strength (see 4.6.6). When cured in accordance with 3.5.4, theadhesive shall have a bond strength not less than 10.3 MPa (1,500 psi) at atemperature of +25OC 5OC.3.5.8 Glass
24、transition temperature (see 4.6.7). When cured in accordancewith 3.5.4, the adhesive shall have a glass transition temperature not lessthan +65OC.3.5.9 Index of refraction (see 4.6.8). The adhesive shall have an index ofrefraction not less than 1.500.3.5.10 Coefficient of linear thermal expansion (s
25、ee 4.6.9). When cured inaccordance with 3.5.4, the adhesive shall have a coefficient of linear thermalexpansion not greater than 225 x 10-6mm/OC.3.5.11 Operating temperature (see 4.6.9). When cured in accordance with3.5.4 and after exposure to non-operating temperature extremes between -40OCand +70O
26、C, the adhesive shall meet the requirements of 3.5.10 when exposed tooperating temperature extremes between -28OC and +65OC.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-24793A 4 3.5.12 Water absorption (see 4.6.10). When cured in accordanc
27、e with 3.5.4,the adhesive shall absorb an amount of water not greater than 0.5 percent ofthe adhesive weight.3.5.13 Identification and marking (see 4.6.11). All containers shall bemarked. The markings shall be permanent, clearly visible, and legible.Marking information shall include the Part or Iden
28、tifying Number (PIN), CAGEcode, manufacturers name, lot number, and date of manufacture.3.5.14 Workmanship (see 4.6.12). All adhesive material shall be uniform inquality and free from foreign material or any defects detrimental to thefabrication or performance of the adhesive.3.5.15 Splice compatibi
29、lity (see 4.6.13). The adhesive shall securely holdan optical fiber within a fiber optic splice. The adhesive shall restrict theaxial movement of the optical fiber with respect to the fiber optic spliceferrule to be less than 0.2 m.3.6 Shipping. Adhesive material shall not be shipped on any order to
30、 thisspecification if the shipping date is greater than 90 days from themanufacturing date.3.7 Particle diameter. Diameters of particles within the adhesive materialshall be not greater than 5 micrometers.4. VERIFICATION4.1 General. Material delivered to this specification shall meet allrequirements
31、 herein. The manufacturer shall perform the necessary tests andinspections in order to insure compliance with this specification.4.1.1 Test equipment and inspection facilities. Requirements for testequipment and inspection facilities shall be as identified in the contract(see 6.3.1).4.2 Classificati
32、on of inspections. The inspection requirements specifiedherein are classified as follows:a. First contract inspection (see 4.3).b. First article inspection (see 4.4).c. Conformance inspection (see 4.5).4.3 First contract inspection. First contract inspection (see 6.4.1) isapplicable only on the firs
33、t acquisition of a particular product under thisspecification. First contract inspections (see 6.4.1) shall consist of thetests listed in Table I and shall be conducted in conjunction with firstarticle inspections (see 4.4). The material submitted for testing shall berepresentative of the production
34、 process.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-24793A 5 TABLE I. First contract inspection.Inspection Requirement Test Sample sizeIdentification andmarking3.5.13 4.6.11 All unitsIndex of refraction 3.5.9 4.6.8 1/Water absorption 3.5
35、.12 4.6.10 2/Splice compatibility 3.5.15 4.6.13 3 spliceassemblies1/ Three specimens shall be used from units selected at random fromthe first contract sample. The specimens shall be uncured.2/ Three specimens shall be used from units selected at random fromthe first contract sample. The specimens s
36、hall have been cured inaccordance with 3.5.4.4.3.1 Sample. The sample submitted shall be a number of units of the samePIN sufficient to complete all of the inspections.4.3.2 Inspection routine. The sample shall be subjected to the inspectionsspecified in table I in the order shown. The tests identif
37、ied in table I maybe performed at the same time as the tests identified in table II.4.3.3 Failures. One or more failures shall constitute first contractinspection failure.4.4 First article inspection. First article inspection shall consist ofall the tests listed in table II. The material submitted f
38、or testing shall berepresentative of the production process.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-24793A 6 TABLE II. First article inspection.Inspection Requirement Test Sample sizeIdentification and marking 3.5.14 4.6.11 All unitsW
39、orkmanship 3.5.14 4.6.12 All unitsViscosity 3.5.1 4.6.1 1/Shelf life 3.5.2 4.6.2 2/Storage temperature 3.5.3 4.6.2 3/Cure schedule 3.5.4 4.6.3 4/Linear shrinkage 3.5.5 4.6.4 5/Hardness 3.5.6 4.6.5 5/Bond strength 3.5.7 4.6.6 5/Glass transition temperature 3.5.8 4.6.7 5/Coefficient of linear thermale
40、xpansion3.5.10 4.6.9 5/Operating temperature 3.5.11 4.6.9 6/1/ Three specimens shall be used from units selected at random fromthe first article sample.2/ Twelve specimens shall be used from units selected at random fromthe first article sample.3/ The same specimens shall be used as are used in the
41、shelf lifeinspection.4/ Fifteen specimens shall be used from units selected at random fromthe first article sample.5/ Three specimens shall be used selected from the specimens used inthe cure schedule inspection.6/ The same specimens shall be used as are used in the coefficient oflinear thermal expa
42、nsion inspection.4.4.1 Sample. The sample submitted shall be a number of units of the samePIN sufficient to complete all of the inspections.4.4.2 Inspection routine. The sample shall be subjected to the inspectionsspecified in table II in the order shown.Provided by IHSNot for ResaleNo reproduction
43、or networking permitted without license from IHS-,-,-MIL-PRF-24793A 7 4.4.3 Failures. One or more failures shall constitute first articleinspection failure.4.5 Conformance inspection. Conformance inspection shall consist of theinspections and tests specified for group A inspection (table III), Group
44、 Binspection (table IV), and Group C inspection (table V), as specified (see6.2). Requirements for alternate forms of conformance inspection shall be asidentified in the contract (see 6.3.2).4.5.1 Group A inspection. Group A inspection shall consist of the testslisted in table III conducted in the o
45、rder shown.TABLE III. Group A inspection.Inspection Requirement TestIdentification and marking 3.5.13 4.6.114.5.1.1 Sampling plan. Group A inspections shall be performed on 100percent of the product supplied under this specification.4.5.1.2 Failures. One or more failures shall constitute group A ins
46、pectionfailure of the sample unit.4.5.1.3 Disposition of sample units. Samples that have failed group Ainspection shall not be shipped or submitted for group B testing.4.5.2 Group B inspection. Group B inspection shall consist of the testslisted in table IV conducted in the order shown. Group B insp
47、ections shall bemade on sample units that have passed group A inspection.TABLE IV. Group B inspection.Inspection Requirement TestWorkmanship 3.5.15 4.6.12Cure schedule 3.5.4 4.6.3Hardness 3.5.6 4.6.5Bond strength 3.5.7 4.6.64.5.2.1 Sampling plan. A minimum of three sample units shall be selectedfrom
48、 each lot of material supplied under this specification.4.5.2.2 Failures. One or more failures shall constitute group B inspectionfailure of the lot.4.5.2.3 Rejected lots. Requirements regarding the rework of rejected lotsshall be as identified in the contract (see 6.8.1).4.5.2.4 Disposition of samp
49、le units. Samples that have failed group Binspection shall not be shipped or submitted for group C testing.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-24793A 8 4.5.3 Periodic inspection. Periodic inspection shall consist of group Cinspection. Except where the results of these inspections show noncompliancewith the applicable test requirements (see 4.5.3.1.4), delivery of pro
