ARMY MIL-H-12225 H-1990 HOOD GAS MASK TOXICOLOGICAL AGENTS PROTECTIVE M-3《M-3 毒物剂防护防毒面罩》.pdf

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1、- - MIL-H-32225H 89 a 7977706 0933877 O W MIL-H-12225H 6 March 1990 SUPERSEDING MIL-H-1222% 12 July 1983 MILITARY SPECIFICATION HOOD, GAS MASK, TOXICOLOGICAL AGENTS PROTECTIVE : M-3 This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scop

2、e. This document covers a hood to provide military personnel protection against toxicological agents. protective mask and Coverall, Toxicological AgentsProtective: M-3, This is a special purpose Life Support Clothing and Equipment (LSCGtE) item. All Government administrative and surveillance procedu

3、res applicable to LSC distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-12225H SPECIFICATIONS FEDERAL V-T-285 DDD-L-20 PPP-B-636 PPP-T-45 MI LI TARY MIL-B-371 MIL-C-484 MIL-B-543 MIL-F-10884 MIL-C-12189 MIL-L-35078 MI L

4、- T-4 3 5 6 6 STANDARDS FEDERAL FED-STD-19 1 FED-STD-751 MILITARY MIL-STD-105 MIL-STD-129 MIL-STD-147 MIL-STD-73 1 - Thread, Polyester - Label: For Clothing, Equipage and Tentage (General Use) - Boxes, Shipping, Fiberboard - Tape, Gummed, Pa.per, Reinforced and Plain, for Sealing and Securing - Brai

5、d, Textile, Tubular - Cloth, Wind Resistant Oxford, Cotton, Quarpel Treated - Buckles, Tongueless and Web Strap - Fasteners, Snap - Cloth, Coated: Butyl Coated, Toxicological Agents Protective - Loads, Unit: Preparation of Semiperishable Subsistence Items; Clothing, Personal Equipment and Equipage,

6、General Specification For - Tape, Textile, Cotton, General Purpose, Natural or in Colors - Textile Test Methods - Stitches, Seams and Stitching - Sampling Procedures and Tables for Inspection - Marking for Shipment and Storage - Palletized Unit Loads - Quality of Wood Members for Containers and Pall

7、ets by Attributes (Unless otherwise indicated, copies of federal and military specifications, standards and handbooks are available from the Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.2 Non-Government publications. The following documents form

8、 a part of this Unless otherwise specified, the issues document to the extent specified herein. 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

9、 the documents cited in the solicitation (see 6.2). 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-12225H AMERICAN SOCIETY POR TESTING AND MATERIALS (ASTM) D 3951 - Standard Practice for Commercial Packaging (Application for copies should be

10、 addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) THE COLOR ASSOCIATION OF THE UNITED STATES Standard Color Card of America Department of Defense Standard Color Card for Sewing Threads (Coor cards may be available from the Color Association of t

11、he United States, 343 Lexington Avenue, New York, NY 10016-0927. If color-cards are not available from the Color Association, individual color samples may be obtained from the contracting activity or as directed by the contracting activity.) (Non-government standards and other publications are norma

12、lly available from These docu- the organizations that prepare or which distribute the documents. ments also may be available in or through libraries or other informational services. ) 2.3 Order af precedence. In the event of a conflict between the text of this document and the references cited herei

13、n, the text of this document shall take precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Samples. 3.1.1 First article, When specified (see 6.21, a sample shall be subjected to first article in

14、spection (see 6.3) in accordance with 4.3. 3.1.2 Guide samples. Guide samples, when furnished, are solely for guidance and information to the contractor (see 6.4). may appear in the sample, in which case this specification shall govern. Variations from this specification 3.2 Materials. It is encoura

15、ged that recycled material be used when practical as long as it meets the requirements of this specification. 3.2.1 Coated cloth. The coated cloth shall be butyl coated nylon cloth conforming to MIL-C-12189. 3-2.2 Bias binding. The bias binding for the snout ring shall be cut from the coated fabric

16、specified in 3.2.1. cut from oxford cloth conforming to type I, Olive Drab 7 of MIL-C-484. As an alternate the bias binding may be 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_- - - . MIL-H-12225H 84 9777906 04L3880 O MI LH- 1 22 2 5H 3.2.3 Str

17、apping; The strapping used toseai the seams shall be 3/4 +1/8, -0 inch wide and shall be made from the coated fabric specified in 3.2.1, straight or bias cut, except that a cotton-base cloth may be used in place of nylon provided the finished coated cloth meets the requirements of MIL-C-12189. 3.2.4

18、 Cement, The cement used to adhere the strapping to the seams shall be of the self-curing neoprene or butyl base type, pigmented to match the color of the coated cloth or clear. The cement, when applied and tested as specified in 4.4.1, shall not crack or flake when subjected to the cold crack test

19、and the hydrostatic resistance of the cement coated cloth shall be not less than 90 percent of the actual hydrostatic value of the butyl coated cloth prior to cementing. 3.2.5 Thread, polyester. The thread for all stitching shall be type I, class 1, sub-class A, conforming to V-T-285 except that col

20、orfastness requirements shall not apply, The size shall be as specified in table I. The thread shall be dyed Olive Drab S-1, C.A. 66022, 3.2.6 Tape, cotton. The cotton tape shall conform to type I, class la, 1/2 inch wide, of MIL-T-43566 except the tape shall be dyed Olive Drab 7. 3,2.7 Braid. All b

21、raid shall conform to class 4 of MIL-B-371 and shall be dyed Olive Drab 7. The type shall be as specified below., 3,2.7.1 Braid for neck drawcord. The braid for the neck drawcord shall be type II. to prevent ravelling. The ends of the braid shall be resin dipped or tipped 3/4 ? 1/8 inch 3.2.7.2 Brai

22、d for eye holes and snout. The braid for the eye holes and snout drawcord shall be type VII, The ends of the braid shall be stitched (see table I, operation 3c) or resin dipped or tipped 3/4 2 1/8 inch to prevent ravelling. 3.2.8 Buckle. The buckle shall be tongueless, one-bar, 5/8 inch, conforming

23、to type I, style 2, class 1, construction B of MIL-B-543. 3.2.9 Snap fasteners. The snap fasteners shall conform to style 2A, finish 2 of MIL-F-10884. The size of the button and the eyelet components shall be selected by the contractor and shall be of sufficient length to provide a firm cl inch. 3.2

24、.10 Slide keeper. The slide keeper for the neck drawcord shall be rectangular, made of vinyl chloride polymer or copolymer and be pigmented Olive Drab or Black. It shall be sufficiently flexible for the purpose intended and shall have a hardness of 70 2 10 when tested as specified in 4.4.1. The slid

25、e keeper shall measure 1-1/4 2 1/16 inches by 3/4 t 1/16 inch by 1/8 ?. 1/16 inch. Two 1/4 2 1/32 inch round holes shall be located on the center line parallel to the 3/4 inch dimension, with each hole 5/16 2 1/16 inch from the end of the keeper, color black, acetal polymer, or equal (see 6.6). As a

26、n alternate, the slide keeper may be nexus cord lock number 194, 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-H-LZ225H 8i.I 777770b Oi.IL38BL 2 I I MIL-H- 12225B 3.2.11 Identification label. Each hood shall have an identification label confo

27、rming to type IV or VI, class 1 of DDD-L-20 with the following exceptions! Type IV label (stamped) (a) (b) A vinyl base black indelible ink shall be used. Letters shall be sans-serif, extra bold, monotone style, 14 points (caps only). .- Type VI label (cloth) (a) (b) (c) (d) The label shall be print

28、ed prior to impregnation or coating. Only chlorine bearing yinyl resin composition shall be used for The label shall measure 2-3/4 by 1-1/2 inches minimum and the All colorfastness and writing tests are not applicable. impregnation or coating. legend shall be printed parallel to the small dimension.

29、 3.2.11.1 Resistance of labels to fading and tackiness. 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 Design. 3.4 Patterns. The design of the hood shall be as shown in figure 1, - Standard patterns, which provide a sea

30、m allowance of 3/8 inch for all lapped seams unless otherwise specified in table I, will b the Government. The standard patterns shall not be altered in any are to be used only as a guide for cutting the contraetors workhg patterns which shali be identical to the standard patterns. from the material

31、 specified and in the quantity indicated below: 3.4.1 List of pattern parts. The component parts far the hood shall be cut Ma ter i al I tem Nomenclature Cut parts 1 1 I Snout ring toxicological agents protective 2 Front neck Cloth, coated, butyl coated, 1 3 Back neck 4 Strap 2 5 Right frnt 1 1 2 1

32、6 Left front 7 Back, left and 8 Snout right 3.5 Construction. The construction shall conform to the requirements specified in tabie I and herein. coated side of the cloth and strapping facing to the outside. The hood shall be assembled with the heavily 5 Provided by IHSNot for ResaleNo reproduction

33、or networking permitted without license from IHS-,-,-3.5.1 Stitches, seams, and stitching. All stitches, seams and stitching Seam allowances shall be maintained with shall conform to FED-STD-751. The type of seam, stitching- and stitches per inch shall be as specified in table I. seams sewn so that

34、noraw edge, run-off, twists, pleats, puckers, or open seams occur. z. 3-.5.1.1 Type 301 stitching. Unless otherwise specified, ends of all 301 stitching, except when caught in other seams or stitching, shall be backstitched or overstitched 3/8 inch minimum. Thread tension shall be maintained so that

35、 there will be no loose stitching resulting in loose bobbin or top thread, or excessively tight stitching resulting in puckering of the materials sewn. lock shall be embedded in the materials sewn, The 3.5.1.1.1 Repairs of type 301 stitching. Repairs of type 301 stitching shall be as follows: a. Whe

36、n thread breaks or bobbin run-outs occur during sewing, the stitching shall.be repaired by restarting the stitching a minimum of 3/8 inch back of the end of the stitching. L/ b. Thread breaks or two or more consecutive runoff or skipped stitches noted during inspection of the item (in-process or end

37、 item) shall be repaired by overstitching. the defective area, continue over the defective area and continue a minimum of 3/8 inch beyond the defective area onto the existing stitching. excessively tight stitching shall be repaired by removing the defective stitching, without damaging the materials,

38、 and restitching in the required manner. L/ - l/ The stitching shall start a minimum of.3/8 inch in back of Loose or When making the above repairs the ends of the stitching are not required to be backstitched. 3.5.1.2 Use of automated apparel equipment. Automated apparel equipment may be used to per

39、form any of the operations specified in table I, providing that the seam and stitch type are as specified and the finished component conforms to the required configuration. forwarded, the component shall conform to that pattern. When a government furnished shaper pattern is 3.5.1.3 Thread ends. All

40、thread ends shall be trimmed to a length of not more than 1/4 inch. 3,5.1,4 Bartacking. Bartacking shall be 1/2 2 1/16 inch in length and 1/8 2 1/32 inch in width and shall contain 28 stitches. Bartacking shall be free from thread breaks or loose or tight stitching. 6 Provided by IHSNot for ResaleNo

41、 reproduction or networking permitted without license from IHS-,-,-MIL-H-12225H 84 = 777740b 0433883 b - MIL-H-12225H 3.5.2 Application of seam strapping. 3.5.2.1 Preparation of seam area for strapping. Before applying the cement; the seam, the area along the seam where the strapping makes contact,

42、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, 3.5.2.2 Strapping of seams. The seams, where required, shall be strapped on both the inside and the outside using the c

43、ement specified in 3.2.4. Each individual seam shall be strapped with a continuous length of strapping with the strapping centered on the seam. overlap shall be made, Whenever strappings intersect, they shall be overlapped, When the strapping is centered over the seam and pressed into position, the

44、cement line shall not extend more than 3/4 inch on either side of the strapping. Where ends of strapping meet, a 1 2 1/4 inch . 3.5.3 Setting of snap fasteners.o A hole shall be prepunched to receive the The hole shall be smaller button and eyelet components of the snap fasteners. than the outside d

45、iameter of the button and eyelet barrels so that the barrel must be forced through the hole. The hole shall not be punched in the setting operation with the button or eyelet barrel. The fasteners shall be securely clinched without cutting the adjacent materials and no more than two splits shall occu

46、r in the button or eyelet barrel. 3.6 Manufacturing operations requirements. The hood shall be made in accordancewith all operations listed in table I. The contractor is not required to follow the exact sequence of operations. 7 Provided by IHSNot for ResaleNo reproduction or networking permitted wi

47、thout license from IHS-,-,-MIL-H-LZ225H 4 a 777q7Ob 04L3L1 MI L-H- 1 22 25 H ln I- Z W 5 E Q w u! ce z I- u! W P O o K 3 I- U U K z 0 a z 2 I U C o U 8 C O w Ow o, ou Y I I 10 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-H-12225H 84 - 777790

48、6 0413887 3 MIL-B-12225H m Ep O I Co d O I a) ril O I a) ril 4 i (d v: tn 4 I m L w ril I m L W ril O m 4 O m n c, c *-I 4 IO C (d U W al 4 -I (d V -I a U W v al 0 al -4 n, m h n 79 al O t w 4 al C C 1 c, al c c, c M 1 c U V .-I (d L W L n O W c. m mw ao 4 c 2.2 . IO Q, 5 u0 alw oa W L. .o am alc 2:

49、 al n (d c v) i h alCa VLi 05 M ww C com mc I- t 3 .-I (d 4 P n v1 3 a a 2 W 3 I x W I- Z 3 0 3 W -I z z m i 8 I- V O u. O z I- W c 0 o - e7 O QI o Y;t gci Z.- 12 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-NIL-H-12225H 84 M 9777706 0413887 7 MI L -E- 1 2 2 2 5 H 5 In(6 cc Co V cci o c U o U U o w C (6 y1 Q, -I + n