1、MIL-A-2334J 84 9999706 O473508 5 I INCH-POUND I MIL-A-2334 J 15 March 1991 SUPERSEDING 15 January 1 988 MIL-A-2334H MILITARY SPECIFICATION APRON, TOXICOLOGICAL AGENTS PROTECTIVE, M-2 This specification is approved for use by all Departments and Agencies of the Department of Defense. 1 SCOPE 1.1 Scop
2、e. This specification covers a one-piece impermeable apron used for protection against toxicological warfare agents. 1.2 Classification. The apron shall be of one type in the following sizes, as specified (see 6.2): X-Small Small Medium Large X-Large 2. APPLICABLE DOCUMENTS 2.1 Government documents.
3、 2.1.1 Specifications, standards, and handbooks. The following specifica- tions. 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 Specific
4、a- tions and Standards (DODISS) and supplement thereto, cited in the solicita- tion (see 6.2). Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be used in improving this document should be addressed to: U.S. Army Natick Research, Development, and Engineeri
5、ng Center , Natick, MA 01760-501 9 by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. I I AMSC N/A FSC 8415 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Licensed by Information Handling Se
6、rvicesNIL-A-2334J 84 m 9997706 0473509 7 m MIL-A-2334 J SPECIFICATIONS FEDERAL A-A-50083 - Bag, Plastic, Folded Garment V-T-285 - Thread, Polyester DDD-L -20 - Label: For Clothing, Equipage, and Tentage, PPP-B-566 - Boxes, Folding, Paperboard PPP-B-636 - Boxes, Shipping, Fiberboard PPP-B-676 - Boxes
7、, Setup PPP -T -4 5 - Tape, Gummed, Paper, Reinforced and Plain, for (General Use Sealing and Securing MILITARY MIL-11-530 - Webbing, Textile, Cotton, General Purpose, Natural MIL-B-543 - Buckles, Tongueless and Web Strap MIL-C-12189 - Cloth, Coated: Butyl Coated, Toxicological Agents MIL-L-35078 -
8、Loads, Unit: Preparation of Semiperishable or in Colors Protective Subsistence Items; Clothing, Personal Equipment and Equipage; General Specification For STANDARDS FEDERAL FED-STD-191 - Textile Test Methods FED-STD-751 . - Stitches, Seams and Stitchings FED-STD-595 - Colors Used in Government Procu
9、rement MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes MIL-STD-129 - Marking for Shipment and Storage MIL-STD-147 - Palletized Unit Loads MIL-STD-731 - Quality of Wood Members for Containers and Pall et s (Unless otherwise indicated, copies of federal and military
10、specifications, standards and handbooks are available from the Standardization Documents Order Desk, Building 4D, 700 Robbins Avenue Philadelphia, PA 191 1 1-5094. 2 Licensed by Information Handling ServicesMIL-A-2334J 4 = 9999906 0473510 3 d: MIL-A-2334J 2.1.2 Other Government documents, drawings,
11、and publications. The follow- ing other Government documents, drawings, and publications form a part of this specification to the extent specif ied herein. issues are those cited in the solicitation. Unless otherwise specified, the DRAWINGS U.S. ARMY NATICK RESEARCH, DEVELOPMENT, AND ENGINEERING CEN
12、TER 5-10-47 - Fastener, 1-Inch (Copies of drawings are available from the U.S. Army Natick Research, Development, and Engineering Center, ATTN: STRNC-UXT, Natick, MA 01760-5017.) 2.2 Non-Government publications. The following documents form a part of this.document to the extent specified herein. Unl
13、ess 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 documents cited in the solicitation (see 6.2). AMERICAN
14、 SOCIETY FOR TESTING AND MATERIALS (ASTM) D 618 - Conditioning Plastics and Electrical Insulating Materials for Testing D 3951 - Standard Practice for Commercial Packaging (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, P
15、A 19103-1187.) (Non-Government standards and other publications are normally available from organizations that prepare or distribute the documents. may be available in or through libraries or other informational services.) These documents also 2.3 Order of precedence. In the event of a conflict betw
16、een the text of Nothing in this document, however, supersedes applicable this document and the references cited herein, the text of this document takes precedence, laws and regulations unless a specific exemption has been obtained. 3, REQUIREMENTS 3.1 First article. When specified (see 6.2), a sampl
17、e shall be subjected to first article inspection (see 6.3) in accordance with 4.3. 3.2 Guide sample, Samples, when furnished, are solely for guidance and information to the contractor (see 6.4). Variation from this specification may appear in the sample, in which case this specification shall govern
18、. 3 Licensed by Information Handling Services- MIL-A-2334J 84 9997.906 04735LL 5 MIL-A-2334J 3.3 Materials. It is encouraged that recycled material be used when practical as long as it meets the requirements of this specification. 3.3.1 Basic material. The basic material shall be a butyl coated clot
19、h conforming to MIL-C-12189. 3.3.2 Strapping. The strapping used to seal the seams shall be made of the coated cloth specified in 3.3.1, straight or bias cut. The strapping shall be 1 2 1/16 inch wide. 3.3.3 Adhesive. The adhesive used to pre-cement the seams and to adhere the strapping to the seams
20、 shall be of the self-curing neoprene or butyl-base type. The adhesive, when applied and tested as specified in 4.4.1, shall not crack or flake when subjected to the cold crack test. The hydrostatic resistance of the adhesive coated cloth shall be not less than 90 percent of the actual hydrostatic r
21、esistance of the butyl coated cloth prior to applying adhesive. Sample strapped seams, prepared with the adhesive as specified in table IV, shall have a minimum adhesion of 2.0 pounds per inch of width after water immersion and after aging. 3.3.4 Thread. The thread for all seams and stitching shall
22、be polyester thread conforming to type I or type II, class 1, subclass A, sizes E and B of V-T-285. The thread shall be Camouflage Green 483 approximating color chip 34094 of FED-STD-595. 3.3.5 Webbing. The webbing used in the apron shall be-5/8 inch wide for the wrist adjustment straps, 3/8 to 5/8
23、inch wide for the wrist adjustment strap loops and 1 inch wide for the tie tapes and shall conform to type IIa, class 7 of MIL-W-530. The color of the webbing shall be Olive Drab 7. 3.3.6 Buckles. 3.3.6.1 Wrist straps. The buckles for the wrist straps shall conlorm to type II, style 4, class 3, size
24、 5/8 inch of MIL-B-543. 3.3.6.2 Tie tapes. The buckles for the tie tapes shall conform to Drawing 5-10-47. 3.3.7 Label. The label shall conform to type IV or V, class 12 of DDD-L-20, except that the legend for the type IV label (when used) shall be printed with 14-point characters. 3.3.7.3 Tackiness
25、 of labels. Both the cloth label and the stamped label shall be legible and shall not become tacky after testing as specified in 4.4.1. 3.3.8 Dusting powder. The dusting powder for application to the apron shall be whiting less than 1.0 percent silica (nonfibrous), or other finely divided low toxici
26、ty material which does not support mildew growth. 4 Licensed by Information Handling ServicesMIL-A-2334J 84 = 9997906 0473532 7 h 3.4 Design. The design ve a front, two side pan MIL-A-2334J shall be as shown on figure 1. The apron shall 1s and raglan sleeves. The back shall be secured by tie tapes a
27、nd each sleeve shall have a wrist adjustment strap. 3.5 Patterns. Standard patterns, which provide proper allowance for all The standard patterns shall not The working patterns shall not be altered in seams will behrnished by the Government. be altered in any way and are to be used only as a guide f
28、or cutting the contractors working patterns. any way. 3.5.1 List of pattern parts. The components of the pattern for the apron shall be cut from material as specified and according to the number of each part required as indicated in table I, TABLE I. Pattern parts Ma ter i a 1 I tem Nomenclature Cut
29、 parts Cloth, coated, butyl coated, toxicological agents protective 1 Side panel 2 Sleeve 3 Front 2 2 1 3.5.2 Assembly of apron. The apron shall be constructed and assembled with the heavily coated side of the fabric on the outside of the apron. 3.6 Construction. 3.6.1 Stitches, seams, and stitching
30、. All stitches, seams, and stitching shall conform to FED-STD-751. The type of seam, stitching, and stitches per inch shall be as specified in table . so that no raw edges, run-Offs, pleats, or open seams occur. Where two or more methods for seams or stitch types are given for the same part of the o
31、peration, any one of them may be used, When stitch type 401 is used, the looper (underthread) shall be on the inside of the apron. minimize the size of the hole in the fabric, the needle used shall be the smallest size that will accommodate thespecified thread. Seam allowances shall be maintained In
32、 order to 3.6.1.1 Type 301 stitching. Ends of 301 stitching shall be backstitched or overstitched 1/2 inch minimum, except where ends are turned under in a hem or held down by other stitching. Thread tension shall be maintained so there will be no loose stitching resulting in a loose bobbin or top t
33、hread or no excessively tight stitching resulting in puckering of the materials sewn. The lock shall be embedded in the materials sewn. 5 Licensed by Information Handling ServicesMIL-A-2334J 84 W 999990b 0473533 9 m MIL-A-2334 J 3.6.1.1.1 Repairs of type 301 stitching. Repairs of type 301 stitching
34、shall be as follows: a. When thread breaks, skipped stitches, run-Offs or bobbin run-outs occur during sewing, the stitching shall be repaired by restarting the stitching a minimum of 1/2 inch back of the end of the stitching. L/ b. Thread breaks or two or more consecutive skipped or run-off stitche
35、s noted during inspection of the item (in-process or end item) shall be repaired by overstitching. The stitching shall start a minimum of 1/2 inch back of the defective area, continue over the defective area, and continue a minimum of 1/2 inch beyond the defective area onto the existing stitching. e
36、xcessively tight stitching shall be repaired by removing the defective stitching without damaging the material and restitching in the required manner. A/ Loose or - i/ When making the above repairs, the ends of stitching are not required to be backstitched. 3.6.1.2 Type 401 stitching. Thread tension
37、 shall be maintained so that there will be no loose stitching. Both ends of all seams or stitching produced with 401 stitch type, when not turned under in a hem or held down by other stitching, shall have a 1/2 to 3/4 inch chain extending beyond each end. All repairs shall be in accordance with 3.6.
38、1.1.la and 3.6.1.1.lb. 3.6.1.3 Pre-cementing. All major joining seams shall be overlapped 1/2 4 1/16 inch and cemented before stitching. 3.6.1.4 Bartacks. Bartacks shall be free from thread breaks and loose or excessively tight stitching. 3.6.2 Seam strapping, 3.6.2.1 Preparation of seam area for st
39、rapping. Prior to application of the adhesive, the seam and area along the seam where the strapping makes contact, and the surface of the strapping to be adhered, shall be thoroughly cleaned with rubber makers naptha or other suitable cleaning agent which is not a solvent for the butyl coating compo
40、und. 3.6.2.2 Application of seam strapping. Strapping shall be applied to both inside and outside of those seams required to be strapped (with the lightly coated side of the strapping contacting the seam) using the adhesive specified in 3.3.3. Each individual seam shall be strapped with a single pie
41、ce of strapping. Where ends of strapping meet, a 1 1: 1/4 inch overlap shall be made. Wherever strappings intersect, they shall be overlapped. When the strapping is centered over the seam and pressed into position, the adhesive line shall not extend more than 3/4 inch on either side of the strapping
42、. center of the strapping shall be no more than 1/8 inch off center. The finished strapping width shall be 1 .: 1/16 inch. The 6 Licensed by Information Handling ServicesMIL-A-2334J 84 = 9997706 0473534 O MIL -A-2334 J 3.7 Figures. Figure 1 is furnished for information only. If there are in- consist
43、encies between the written specification and the figure, the written specification shall control. 3.8 Manufacturing operations requirements. The apron shall be manufactured in accordancewith operations specified in table II. The contractor is not required to follow the exact sequence of operations.
44、Any additional basting or holding stitching to facilitate manufacture is permissible, provided the thread is removed or does not show in the finished apron, 3.9 Use of automated apparel equipment. Automated apparel equipment may be used to perform any of the operations specified in table II, providi
45、ng that the seam and stitch type are as specified and the finished component conforms to the required configuration. When a government furnished shaper pattern is forwarded, the component shall conform to that pattern. 7 Licensed by Information Handling Servicese z MIL-A-2334J 84 m 999990b OLI735l15
46、 2 m MIL-A-2334 J .P a a a, a a, rn 7 a, P x 2 fi W c .rl incorrect; illegible; of improper and interior) size, location, sequence, or method of D Mat er i al s application Any component missing, damaged, or not as specified Workmanship Con tent Inadequate application of components, such as incomple
47、te sealing or closure of flap, improper taping, loose strapping, or inadequate stapling Bulged or distorted container Number of unit packs per container is more or less than required 4.4.7 Palletization examination. The fully packaged and palletized end The sample unit shall be one items shall be ex
48、amined for the defects listed below. expressed in units of palletized unit loads. palletized unit load, fully packaged. the AQL, expressed in terms of defects per hundred units, shall be 6.5. The lot size shall be The inspection level shall be S-1 and Examine Defect Finished dimensions Length, width
49、, or height exceeds specified maximum requirement Pallet pattern not as specified Load not bonded as specified Palletization 27 Licensed by Information Handling ServicesMIL-A-2334J 84 W 9777706 0473535 8 Examine Weight Marking MIL-A-2334J Defect Exceeds max,.nm load 1 imi ts Omitted; incorrect; illegible; of improper size, location, sequence, or method of application 4.5 Methods of inspection. Results of physical tests obtained under test conditions defined in FED-STD-191 or ASTM D 618, shall be acceptable except in case of dispute; in dispute cases, tests shall be conducted with b
