1、MIL-B-71190 (AR) 24 August 1994 Beneficial comments (recommen3a:ions, additions, deletions) and any pertinent data which may be of use in improvinp this document, should be addressed to: Commander, U.S. Army ARDEC, ATTN: SHCAR-BAC-S, Picatinny , Arsenal, New Jersey 07806-5000 byr usinp the Standardi
2、zation Ikcument improvement Proposal DD Form 1426) appearing at the end of this document or bv ietter. MILITARY SPECIFICATION BAG, MULTIWALL PASTED VALVE This specification is approved for use by the U.S. Army Armament, Munitions and Chemical Command, and is available for use by all Departments and
3、Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements, ex- aminations and tests for one type of multiwall pasted valve bag for use in packaging bulk explosives (see 6.1). 2. APPLICABLE DOCUMENTS 2.1 Government documents 2.1.1 Specifications, standards
4、and handbooks. The follow- ing specifications, standards and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and
5、supplement thereto, cited in the solicita- tion (see 6.2). SPECIFICATIONS MI LI TARY MIL-A-48078 - Ammunition, Standard Quality Assurance Provisions, General Specification for AMSC N/A FSC 9140 DISTRIBUTION STATEMEhT A. Approvcd for public rclearc. dsmhutiop is rmlimttcd Provided by IHSNot for Resal
6、eNo reproduction or networking permitted without license from IHS-,-,-MIL-B-73390 m 9999906 3997382 009 m MIL-B-71190 (AR) STANDARDS MIL I TARY MIL-STD-109 - Quality Assurance Terms and Definitions MIL-STD-1905 - Design and Test Requirements for Level B and Level C Ammunition Packaging (Unless other
7、wise indicated, copies of federal and military specifications, standards, and handbooks are available from DODSSP - Customer Service, Standardization Documents Order Desk, 700 Robbins Avenue, Bldg. 4D, Philadelphia, PA 19111-5094.) 2.1.2 Other Government documents, drawinqs, and publica- tions. The
8、following other Government documents, drawings and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation. DRAWINGS U.S. ARMY ARMAMENT RESEARCH, DEVELOPMENT AND ENGINEERING CENTER (ARDEC) 12972282 - Bags, F
9、ive Ply (Copies of other Government documents, drawings and publications required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity.) DOCUMENTS 49CFR - Code of Federal Regulations Title 49 - Tr
10、ansportation of Hazardous Materials (The Code of Federal Regulations (CFR) are on sale by the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402.) 2.2 Non-Government Dublications. The following documents form a part of this document to the extent specified herein. U
11、nless otherwise specified, the issues of the documents which are DoD adopted are those listed in the issue of the DODISS cited in the solicitation. Unless otherwise specified, the issues of documents not listed in the DODISS are the issues of the docu- ments cited in the solicitation (see 6.2). TECH
12、NICAL ASSOCIATION OF THE PULP AND PAPER INDUSTRY TAPPI-T402 TAPPI-T404 Standard Conditioning and Testing Atmospheres for Paper, Board, Pulp Handsheets, and Related Products Tensile Breaking Strength of Paper and 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license f
13、rom IHS-,-,-NIL-B-IILO 06 L7L83 T45 MIL-B-71190 (AR) Paperboard Substance) of Paper and Paperboard Paperboard TAPPI-T410 Weight per Unit Area (Basis Weight or TAPPI-T456 Wet Tensile Breaking Strength of Paper and (Application for copies should be addressed to the Technical Association of the Pulp an
14、d Paper Industry, Technology Park/Atlanta, P.O. Box 105113, Atlanta, GA 30348.) AMERICAN SOCIETY FOR TESTING AND MATERIALS ASTM-D3951 - Commercial Packaging, Practice for (DoD adopted) (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Ph
15、iladelphia, PA 19103.) the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this docu- ment, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. (See contract provisions for additional precede
16、nce criteria). 2.3 Order of precedence. In the event of a conflict between 3. REQUIREMENTS 3.1 Multiwall pasted valve baq. The multiwall pasted valve bag shall comply with all requirements specified on drawing (dwg.) 12972282 and with all requirements specified in applicable specifications and stand
17、ards. 3.2 Construction. The multiwall pasted valve bag shall have a tuck in sleeve (inner flap), an opening or valve, in one corner through which the bag is filled. 3.2.1 Plies. The bag shall have five (5) plies with a glue seam for the top and bottom and an overlap side glue seam. The innermost ply
18、 and tuck in sleeve shall be made of No. 50 natural kraft with a 0.0015 inch minimum thickness of polyethylene ap- plied to the innerside of the ply and tuck in sleeve. The second ply shall be No. 50 kraft. The third ply shall consist of a high density polyethylene sheet stretched in one direction a
19、nd a second layer of high density polyethylene bonded to it at 45 de- grees. The total thickness shall be 2.5 mil minimum. No. 50 kraft shall be used for the forth and fifth plies. 3.2.2 Bondinq of plies. The top and bottom ends shall be continously bonded, with hot melt or thermoplastic adhesive, s
20、o that the various walls will be securely anchored, one to another providing strong closures. Additional glue shall be sprayed into the corner seams (to control seams). One top corner shall not be pasted so as to provide a filling valve. 3 Provided by IHSNot for ResaleNo reproduction or networking p
21、ermitted without license from IHS-,-,-NIL-B-7LLSO 9999906 2997284 982 MIL-B-71190 (AR) 3.3 Adhesive water resistance. The adhesive, applied to the seams and closures, shall be water resistant to the extent that there will be not more than 25 percent of adhesive failure of the bonded area. The adhesi
22、ve shall be hot melt or thermoplastic ad- hesive. 3.4 Seam strenqth. The adhesive, applied to the seams, shall give a seam strength at least equal to the wall of the kraft paper. The seams shall have a continous bond. The overlap of paper at the longitudinal seam shall not be less than one half (1/2
23、) inch and there shall not be more than 3/16 inch of unsealed edge on the exposed edge. 3.5 Basis weiqht of kraft paper. The basis weight of single ply kraft paper used in the fabrication of the bags shall be fifty (50) pounds (24 x 36 -500). The tolerance for basis weight is minus 5 percent and unl
24、imited plus tolerance. 3.6 Leakproofness. The filled bag shall not exhibit any penetration (leakage) of the contents. 3.7 First article. When specified in the contract or pur- chase order (see 6.2), a sample shall be subjected to first article inspection in accordance with the techncial provisions h
25、erein (see 4.3). 3.8 Workmanship. The bags shall be uniformly constructed and shall be free from holes, tears or other defects that would impair their usefulness or which might result in damage to the contents. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise speci
26、fied in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements (examinations and tests) as specified herein. Except as other- wise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable fo
27、r the perfor- mance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in this specification where such inspections are deemed necessary to ensure supplies and services conform to prescr
28、ibed requirements. 4.1.1 Responsibility for compliance. All items shall meet all requirements of sections 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in the spe
29、cification shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptance comply with all manufacturing operations, is an acceptable prac- tice to ascertain conformance to requirements, however, this does 4 Provided by IHSN
30、ot for ResaleNo reproduction or networking permitted without license from IHS-,-,-a MIL-B-71170 = 9999906 l1997l185 818 MIL-B-71190 (AR) not authorize submission of known defective material, either in- dicated or actual nor does it commit the Government to accept defective material. 4.1.2 General pr
31、ovisions. Unless otherwise specified herein, the provisions of MIL-A-48078, apply and form a part of this specification. Reference shall be made to MIL-STD-109 to define quality assurance terms used herein. ments specified herein are classified as follows: 4.2 Classification of inspections. The insp
32、ection require- a. First article inspection (see 4.3). b. Quality conformance inspection (see 4.4). 4.3 First article inspection. 4.3.1 Submission. The contractor shall submit a first ar- ticle sample as designated by the Contracting Officer for evaluation in accordance with the provisions of 4.3.2.
33、 The first article sample shall consist of the assemblies, components and test specimens listed below in the quantities indicated. 4.3.2 Inspections to be performed. As determined by the Government, the first article assemblies, components and test specimens may be subjected to any or all of the exa
34、minations and tests specified in this detail specification (See Table I) and be - inspected for compliance with any or all requirements of the ap- plicable drawings. 4.3.3 Rejection. If any assembly, component or test specimen fails to comply with any of the applicable requirements, the first articl
35、e sample shall be rejected. The Government reserves the right to terminate inspection upon any failure of an assembly, component or test specimen to comply with any of the requirements. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c O -d 4J 0 al
36、 c -4 al d u -4 U Li a U Co asterisks (*) indicate one hundred percent inspection. If sample size ex- ceeds lot size, perform one hundred percent inspection. Accept on zero and reject on one or more for all inspection levels. b. Alternative aualitv conformance Drovisions. Unless otherwise specified
37、herein or provided for in the contract, al- ternative quality conformance procedures, methods or equipment, such as statistical process control, tool control, variables sampling or other types of sampling plans, etc. may be used by the contractor when they provide, as a minimum, the level of quality
38、 assurance required by the provisions herein. Prior to applying such alternative procedures, methods or equipment, the contractor shall describe them in a written proposal submitted to the Government for evaluation (see 6.3). When required, the con- tractor shall demonstrate that the effectiveness o
39、f each proposed alternative is equal to or better than the specified quality con- formance provision(s) herein. In case of dispute as to whether the contractors proposed alternative(s) provides equivalent as- surance, the provisions of this specification shall apply. All approved alternative provisi
40、ons shall be specifically incor- porated into the contractors quality program or inspection system, as applicable. 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-B-71190 = 9999906 1997189 463 . . . .J -va rl a .rl 2 3 Cu m*mrl rlrlrlN I mmmm
41、mmmm m dddd rlrlrl IlII III O000 O00 rl I O a al c -4 W al a al c O z al V c (d ci m -4 m al k n d al 4J al 44J au Vk eo v Liu4 E: O0 cn ala al 4 al c s.4 al a ci W a Li A u 2 u al Li &i O cio V alo kOal c, .2 a .4 5 % c (d Q O 3 O O a u4 O al V a .rl 3 w 5 4 .-I 21 LiI. . . . . . LiI. 9 Provided by
42、 IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-z k u VJ H 2 H w P O kl z O u i I4 4 3 0 H d L. O d w f v) 3 4 Id a a, 4J 111 Id p1 . Co v -3mm-3-3 m mommm m I w a, a a, e z m 3 LI a w O al o G -rl 3 w 8 3 rl (dl i f e 10 Provided by IHSNot for ResaleNo reprodu
43、ction or networking permitted without license from IHS-,-,-MIL-E-71170 W 9779906 L997191 O11 W Fi LI. O d w I VI tri G -4 a r: a c a F c .4 a Pl oi c .ri F a A u id c4 k u 5 .+ d id (d 2 2 -rl -4 3 3 m m H H H 2 d d a, al 3 al 3 al d I4 a a, c -ri w al a al c O z LI O tri c .ri m m .li in d a pi -4
44、-ri LI al ci c a x E F k c O -ri 3 E 5 2 Li O O QI w O a, u c a, a .4 3 w d a u -ri c, .4 LI U 11 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-B-71190 = 9999906 1997192 T58 = MIL-B-71190 (AR) 4.4.3 Inspection equipment. The inspection equipmen
45、t re- quired to perform the inspections specified herein is identified in Table I and the “Inspection Methods Reference“ column of the Classification of Characteristics listing starting with 4.4.2.1. Contractor inspection equipment designs shall be submitted for Government approval as specified in t
46、he contract. Designs which provide variable measurements instead of attributes data are preferred in order to facilitate the use of statistical process control. See MIL-A-48078 and 6.4 herein. 4.5 Methods of inspection. (see 6.5) 4.5.1 Leak test. (First article only). 4.5.1.1 Preparation. Fill each
47、bag to capacity (42 & 2 pounds) with an inert filler (see 6.6). The filler material shall have a bulk density of 0.997 + 0.005 g/ml. Seal the bag by securing the sleeve shut with tape and then tucking the sleeve in the bag. Pre-condition the bag in accordance with TAPPI T402. Immediately after pre-c
48、onditioning, condition the bag for twenty four (24) hours in accordance with TAPPI T402. 4.5.1.2 Procedure. Perform tests in the sequence indicated (“a“ through “el) on the loaded and sealed bags. All testing shall be performed at ambient temperature. Perform the tests below, “a through d“, in accor
49、dance with Table I (Packs weighing 150 pounds or less), Level C (CONUS) of MIL-STD-1905. Test “e“, the four foot drop, shall be in accordance with 49 CFR, Paragraph 178.603. If any spillage or sifting of the contents of the bag is observed, after any test, the bag shall be classed defective. a. Stackinq. Divide the bags into two sets. Six bags in each set. For each set of loaded and s
