1、wMIL-PRF-83671B3 February 1997SUPERSEDINGMIL-F-83671A15 September 1993MILITARY SPECIFICATIONFOAM-IN-PLACE PACKAGING MATERIALS, GENERAL SPECIFICATION FORThis specification is approved for use by allDepartments and Agencies of the Department of Defense.1. SCOPE1.1 m. This specification covers flame re
2、cardancpolyurethane foams for packaging furnished as two-componentliquid foam-in-place (FIP) systems (see 6.1).1.2 The polyurethane foams and the rawmaterials for the foams shall.be furnished in the followingclasses, grades and categories. Additional characteristics shallbe specified by the procurin
3、g activicy (see 3.3.9, 6.2 and 6.5):Class 1 - RigidCategory 1 -Category 2 -Class 2 - FlexibleConventional StrengthHigh StrengthGrade A - (Figure 1)Grade B - (Figure 2)(Use Grade with Class 2 only)Beneficial comments (recommendations, additions, deletions)and any pertinent data which may be of use in
4、 improvingthis document should be addressed co the Air Force PackagingTechnology and Engineering Facility, AFf.fCLSO/LOP: 5215 ThurlowStreet, Wright Patterson AFB OH 45433-5540, by usxng theStandardization Document Improvement Proposal (DD Form 1426)appearing ac the end of this document or by letter
5、.ANSC N/A FSC 8135. Approved for public release;distribution is unlimited.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-83671BClass 3 - Semi-Rigid (Figure 3)2. APPLICABLE DOCUMENTS2.1 . The documents listed in this section are specifiedin s
6、ections 3 and 4 of this specification. This section does notinclude documents cited in other sections of this specificationor recommended for additional information or as examples. Nhileevezy effort has been made to ensure completeness of this list,document users are cautioned that they must meet al
7、l specifiedrequirements documents cited in sections 3 and 4 of thisspecification, whether or not they are listed.2.2.1 The followingspecifications and standards form a part of this document to theextent specified herein. Unless otherwise specified, the issuesof these documents are those listed in th
8、e issue of theDepartment of Defense Index of Specifications and Standards(DODISS) and supplement thereto, cited in the solicitation (see6.2).STANDARDSFEDERALFED-STD-101 Test Procedures for Packaging MaterialsFED-STD-313 Material Safety Data, TransportationData and Disposal Data for HazardousMaterial
9、s Furnished to GovernmentActivitiesHANDBOOKSMilitaryMIL-liDBK-775 Foam-In-Place Packaging, Procedures for(Unless otherwise indicated, copies of federal and militaryspecifications and standards are available from cheStandardization Documencs Order Desk, Building 4D, 700 RobbinsAve., Philadelphia, PA
10、19111-5094. )2.2.2 The followingother Government documents and publications form a part of thisdocument to the extent specified herein. Unless otherwisespecified, the issues are those cited in the solicitation.DEPARTMENT OF TRANSPORTATION (DOT)Title 49, Code of Federal Regulations, Parts 100-199.OCC
11、UPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA)2Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-83671BTitle 29, Code of Federal Regulations, Part 1910.1200Occupational Safety and Health, Volume I, General IndustryStandards and Interpretatio
12、ns, Part 1910.(Applications for copies should be addressed to theSuperintendent of Documents, US Government Printing Office,Washington, DC 20402.)2.3 . . . The following documents form apart of this document to the extent specified herein. Unlessotherwise specified, the issues of the documents which
13、 are DoDadopted are those listed in the issue of the DODISS cited in thesolicitation. Unless otherwise specified, the issues ofdocuments not listed in the DODISS are the issues of the cited inthe solicitation (see 6.2).AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM)ASTM-C421ASTM-D471ASTM-D1596ASTM
14、-D1621ASTM-D1623ASTM-D2126ASTM-D5118ASTM-E96Tumbling Friability of Preformed, Block-TypeThermal Insulation, Standard Test Method for(DoD Adopted)Rubber Property - Effect of Liquids, Test Methodfor (DOD Adopted)Dynamic Shack Cushioning Characteristics ofPackaging Materials, Standard Test for (DoDAdop
15、ted)Compressive Properties of Rigid CellularPlastics, Standard Test Method for (DoD Adopted)Tensile and Tensile Adhesion Properties of RigidCellular Plastics (DoD Adopted)Response of Rigid Cellular Plastics to Thermaland Humid Aging, Standard Test Method for (DoDAdopted)Standard Practice for Fabrica
16、tion of FiberboardShipping Boxes (DoD Adopted)Water Vapor Transmission of Materials (DoDAdopted)(Application for copies should be addressed co ASTN, 100 BarHarbor Dr West Conshohocken PA 19103.)2.4 . In the event of a conflict between thetext of this document and che references cited herein, the tex
17、tof this document takes precedence. Nothing in this document,however, supersedes applicable laws and regulations unless aspecific exemption has been obtained.3Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-83671B3. REQUIREMENTS3.1 First ar W
18、hen specified (see 6.2), asample shall be subjected to Eirst article inspection (see 6.3)in accordance with 4.2.2.3.1.1 The foam dispensing equipmentused to prepare samples for qualfication as specified hereinshall be clearly listed in the Certificate of Compliance preparedby the foam-in-place packa
19、ging suppliers. A chemical formulationshall be certified as complying with the requirements of thisspecification when the samples tested are dispensed throughapproved foam dispensing equiPment from the supplier of thechemical formulation. Use of this foam dispensing equipment isrequired to certify c
20、ompliance with the requirements of thisspecification.3.2 The materials used in the production ofpolyurethane foams shall provide a product conforming to therequirements specified herein.3.2.1 Formulations shall be supplied as atwo-component liquid system of a polymeric isocyanate typeconsisting of c
21、omponent A (primarily methylene bisrhwlisocyanate compounds) and component B (polyol compounds) suitablefor mixing in foam equipment such as portable systems, semi-porcable systems, fixed systems, mechanical pump systems,pneumatic pump systems, compressed gas displacement systems(fixed proportioning
22、 or variable proportioning), or any systemcapable of producing a product conforming to the requirements ofthis specification, and using the procedures recommended inMIL-HDBK-775 . Methylene diisocyanate (MDI) is a commonly usedmisnomer for diphenyl methane diisocyanate and methylenebisphenyl isocyan
23、ate. Nevertheless, the more commonly used term,MDI, shall be used in this document. The formulation shall notconcain materials which are chemically nonreactive (such asfillers and nonreactive diluents) except for surfactants, firerecardanc agents, noncombining catalysts and blowing agent.There shall
24、 be no separation of chemical components, stringinessor coagulated particles that will tend to clog dispenser linesand filters of the foam-in-place dispensing equipment.Chlorofluorocarbons (CFCS) or hydrochlorofluorocarbons (HCFCS)shall not be purposely added to any formulation. Where presentas a tr
25、ace or impurity, CFC/HCFC shall be maintained at thelowest feasible levels. Under no circumstances shall CFC/HCFC bepresent in the product at levels that exceed a specifiedpercentage, by weight. Use of 0.1 percent (maximum, by weight)is recommended.3.2.1.1 A product information sheet shallaccompany
26、each shipment of chemicals. The sheet, as a minimum,shall provide an item description, chemical and physicalproperties, handling instructions, and precautions.It shallinclude the temperature ranges at which the components must be4Provided by IHSNot for ResaleNo reproduction or networking permitted w
27、ithout license from IHS-,-,-MIL-PRF-83671Bconditioned prior to foaming. This temperature range shall be inaccordance with Table I unless otherwise specified by theprocuring activity.3.2.1.2 Per ( lheconcraccingactivity shall be provided a Material Safey Data Sheet (MSDS)prior to contract award. The
28、MSDS shall be prepared andsubmitted in accordance with 29 CFR 1910.1200. The MSDS shall beincluded with each shipment of the material covered by thisspecification. Contracting officers will identify thoseactivities requiring copies of compleced MSDSS prepared inaccordance with FED-STD-313 and 29 CFR
29、 1910.1200. The pertinentgovernment mailing addresses for submission of data sheets arelisted in Appendix B of FED-STD-313. The Material Safety DataSheet Receipt Point for Navy and Marine Corps is as follows:Commanding Officer, Industrial Hygiene Directorate (Accn:HAZMAT), Navy Environmental Health
30、Center, 2510 Walmer Avenue,Norfolk, VA 23513-2617.3.2.1.2.1 A hazardousmaterial warning label conforming to 29 CFR 1910.1200 shall be arequirement for each unit of issue.3.2.2 Foams shall exhibit the properties shown inTable I. Unless otherwise specified, the properties listed arefor ambient tempera
31、tures of 18C co 27C.3.2.3 .3.2.3.1 The formulations shall not containtoluene diisocyanate (TDI), TDI derivatives, methylene chloride(dichloromethane) , or any substances regulated as carcinogens inCode of Federal Regulations, Title 29, part 1910, subpart Z ofvolume 1, General Industzy Standards and
32、Interpretations ofOccupational Safety and Health Administration. Do not includeany materials that are considered: Occupational Safety andHealth Administration (OSHA) regulated carcinogens,known/suspected human carcinogens by che International Agency forResearch on Cancer (IARC) (lacesc reports) and/
33、or the NationalToxicology Program (NTP) (latest annual report) and/or NavyOccupational Chemical Reproductive Hazards should be excludedfrom these formulations. The absence of TDI and TDI derivativesshall be determined prior to the initial mixing of components forfirst article testing.3.2.3.2 Navy pr
34、ocurements shall be inaccordance with the requirements of 3.2.3.2.1.3.2.3.2.1 li=nf= t!=(-AS101- 8.LFor Navy procurements, the manufacturer orsupplier shall: “Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-83671Ba. Disclose the complete info
35、rmation for the product via theMaterial Safety Data Sheet (MSDS) in sufficient detail to permitan accurate appraisal of the likelihood of generation ofmethylene bisphenyl isocyanate and other potentially toxic gases,vapors, aerosols, etc. during any anticipated utilization of theTJLEI. . CLAss1 3 fm
36、.fr.1 Conditioning 29c (COrnPA) 32C(CompA) 35“c (CompA)temp.,range 15C 29C(CampS) 32C(CampS) 35C (CompS)to specifiedcemperacure2Creamtime, 40 30 30seconds(ma.x)2Risetime, 120 90 90seconds(max)aTack free time, 150 150 150seconds w)3 Reaccion temp., 205c 177C 177c(Max)Curetimeco 72 hrsmax 72 hrsmax 72
37、 hrsmaxobtainall mech-anicalproperties1 See 3.2.1.12 See 6.81 See 3.3.11and 4.3.3.11,and 6.724c(campA)24C(CompB)5303s163C72 hrswproduct. This will require submission of a listing of allingredients, totaling 100 percent of the formulation, as well asche submission of a current MSDS for each ingredien
38、t used in theformulation. The manufacturer shall contact each ingredientsupplier within thirty days of documentation submission, in orderto certify that each MSDS provided is current. The MSDS shallcontain all data elements required by an OSHA Form 174, usingthis form or similar form containing iden
39、tical information. Thisdata will be required for occupational health professionals toperform a proper health hazard assessment of the product. Inaddition, where toxicological andlor industrial hygiene studieshave been performed involving the product, copies of thesereports shall also be provided as
40、part of the documentationpackage. Where the product is in commercial use, a minimum ofthree large-scale users of the product must be identified, withoccupational safety/health points of contact, for follow-up bygovernment personnel performing the health hazard assessment.6Provided by IHSNot for Resa
41、leNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-83671Bb. Provide specific precautionary measures, includin9 anMSDS, with each unit of issue to ensure safe use of the product.Forward the MSDS and addendum to the address specified in6.14=”3.33.3.1 . Foams shallcomply wit
42、h mixing requirements of 3.2.1 and shall be prepared inaccordance with 4.3.1. Test.specimens shall conform to thefollowing parameters:a. Specimens shall be homogeneous and contain no knit lines.b. Maximum allowable dimension of blow holes is 13 nun. Theconcentration of 13 mm diameter blow holes shal
43、l not exceed onein 100 square centimeters (10 cm x 10 cm) .3.3.2 Unless otherwise specified,materials shall meet the requirements of 3.3.2.1 or 3.3.2.2 asapplicable (see 6.2 and 6.6).3.3.2.1 QaseuL. After aging in accordance with 4.3.3.2, theaverage minimum compressive strength of the15 samples test
44、ed inboth the parallel and the perpendicular directions.(see4.3.3.2.1) at yield or 10 percent deflection, whichever is firstco occur, shall not vary more than 10 percent from the averagevalue of the 15 samples tested in both the parallel and theperpendicular directions obtained prior to aging (see 4
45、.3.3.9 and6.5). It is noc necessary for both yield and ten percentdeflection to occur.3.3.2.2 . After aging in accordance with4.3.3.2, the stresses necessary for 20 and 40 percent strainsshall be within 10 percent of the stresses necessary to causethese same strains on the same unaged specimens when
46、 tested inaccordance with 4.3.3.2.3.3.3.3 The average water absorptionby weight, of all the samples, shall not exceed 170 percent whendetermined in accordance with 4.3.3.3.3.3.4 . Unless otherwise specified (see6.21 the maximum percentage creep that occurs under thecontinuous loading stress necessar
47、y to cause an initial 20percent strain shall not exceed 15 percent when tested inaccordance with 4.3.3.4.3.3.5 Unless otherwisespecified (see 6.2), the compression20 percent of the original thickness7sec shall not be more than(see 4.3.3.5).Provided by IHSNot for ResaleNo reproduction or networking p
48、ermitted without license from IHS-,-,-MIL-PRF-83671B3.3.6 Unless otherwise specified(see 6.2), the material shall show no cracks, tears orseparations when tested in accordance with 4.3.3.6. Thisrequirement is limited to materials having a density of 0.064 x103 kg/cm3 or less.3.3.7 . The average chan
49、ge in volume of allurethane foam samples after aging shall not be greater than 7percent of the initial volumes before aging (see 4.3.3.7).3.3.8 The urethane foam shall betested in accordance with 4.3:3.8. The flame front of eachspecimen shall not advance co or beyond the 125 nungage markspecified in the test. There shall be no visual evidence ofburning or melting of any specimen at or beyond the 125 mm gagem
