1、MIL-H-43077F 84 7797906 039LBhli 5 m MIL-H-4 3079 F -14 October 1988 SUPERSEDING MIL-H-43079E 15 June 1984 MILITARY SPECIFICATION HOOD, ROCKET FUEL HANDLER S : IMPERMEABLE, LIMITED PROTECTION This specification is approved for use by all Departments and Agencies of the Department of Defense. 1, SCOP
2、E 1.1 Scope. This document covers a hood to be worn to provide protection against fuels and oxidizers. 1.2 Classification. The hoods shall be of one type, two classes, and one size (see 6.2): Class 1 - Army Class 2 - Air Force and Navy 2. APPLICABLE DOCUMENTS 2.1 Government documents. * 2.1.1 Specif
3、ications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of these documents shall be those listed in the issue of the Department of Defense Index of Specificatio
4、ns and Standards (DODISS) and supplement thereto, cited in the solicitation. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: U.S. Army Natick Research, Development, and Engineering Center, Natic
5、k, MA 01760-5014 by using the self- addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 8415 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. THIS DOCUMENT CONTAINS 3% PAGES. ._ Provi
6、ded by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL -H-4 3079 F SPECIFI CATI ON FE DE RAL A -A -5 O O 8 3 L -P -5 35 O-C- 105 FF -N -8 3 6 FF-S-92 HH-C-57 6 UU-P -328 DDD-L -20 PPP-B-636 PPP-T-45 MILITARY MIL -F -495 MIL -T -5 62 4 MIL-P-7254 MIL -F - 108
7、 8 4 MIL -L -3 5 07 8 MIL-C-4 3062 MIL -P -5 1.4 9 3 STAN DARDS FEDERAL FED-STD- 191 FE D-STD-406 FE D-S TD-6 O 1 MILITARY MIL-STD- 105 MIL -ST D- 1 2 9 .MIL-STD- 147 MIL-STD-731 Bag, Plastic, Folded Garment Plastic Sheet (Sheeting): Plastic Strip: Poly (Vinyl Chloride ) and Poly (Vinyl Chloride-Vin
8、yl Acetate), Rigid Calcium Chloride, Dihydrate and Calcium Chloride, Anhydro us : Technical Nut: Square, Hexagon, Cap, Slotted, Castle, Knurled, Welding and Single Ball Seat Screw, Machine: Slotted, Cross-Recessed or Hexagon Head Cork Sheet, (Gaskets, Sheets, and Strips) Paper, Manifold Label: For C
9、lothing, Equipage, and Tentage, (General Use) Boxes, Shipping, Fiberboard Tape, Gummed, Paper, Reinforced and Plain, For Sealing and Securing Finish, Chemical, Black, For Copper Alloys Turbine Fuel, Aviation, Grades JP-4 and JP-5 Propellant, Nitric Acid Fasteners, Snap Loads, Unit: Preparation of Se
10、miperishable Subsistence Items; Clothing, Personal Equipment and Equipage; General Specification For Coated, Acid and Fuel Resistant Cloth, Coated, Nylon, Resin Modified Butyl- Paper, Chemical Agent Detector: M9 Text il e Test Met hods Plastics: Methods of Testing Rubber: Sampling and Testing Sampli
11、ng Procedures and Tables for Inspection Marking for Shipment and Storage Palletized Unit Loads Quality of Wood Members for Containers and Pallets by Attributes 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-43077F 4 7777906 0373863 7 U MIL -
12、H -4 3079 F (Copies of specifications, standards, and handbooks required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity.) 2.1.2 Other Government documents, drawings, and publications. The fo
13、llowing other Government documents, drawings, and publications form a part of this specification to the extent specified herein. Unless otherwise specified, the issues shall be those in effect on the date of the solicitation, Da WINGS U. S. ARMY NATICK RESEARCH, DEVELOPMENT, AND ENGINEERING CENTER 8
14、-1-3 - Jig, Acid Testing No. 2 8-2-16 - Hood, Rocket Fuel Handlers, Impermeable, Limited 8-2-24 - Hood, Rocket Fuel Handlers, Impermeable, Limited Protection, Class 1 US Amy Protection, Class II US Navy and US Air Force (Copies of drawings, publications, and other Government documents required by co
15、ntractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity. 1 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. Unless otherwise specified, the
16、 issues of the documents which are DOD adopted shall be those listed in the issue of the DODISS specified in the solicitation. Unless otherwise specified, the issues of documents not 1-isted in the DODISS shall be the issues of the nongovernment documents which are current on the date of the solici
17、tation. AMERICAN SOCIETY FOR TESTING AND MATERIALS .(ASTM) D 3951 - Standard Practice for Commercial Packaging (Copies should be obtained from the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103-1187.) (Nongovernment standards and other publications are normally
18、available from the organizations which prepare or which distribute the documents. These documents also may be available in or through libraries or other informational services. 1 2.3 Order of precedence. In the event of a conflict between the text of this specification and the references cited herei
19、n, the text of this specification shall take precedence. Nothing in this specification, however, shall supersede applicable laws and regulations unless a specific exemption has been obtained. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-43
20、079F 4 M 9977906 0373864 O W MIL -H -4 3079 F 3. REQUIREMENTS 3.1 Guide samples. Samples, when furnished, are solely for guidance and information to the contractor (see 6.3). Variation from the document may appear in the sample in which case the document shall govern. 3.2 First article. When specifi
21、ed in the contract or purchase order, a sample shall be subjected to first article inspection (see 4.3, 6.2, and 6.4). 3.3 Materials and components (see 6.6). 3.3.1 Frame assembly. 3.3.1.1 Frame, The frame shall conform to Fibre Metal Products Co., part number 622, or equal, except the facepiece, ho
22、les for mounting the facepiece, and mounting screws shall be omitted (see 6.5 and 6.9). 3.3.1.2 Headband, cushion. The front half of the headband shall be provided with a leather cushion with a soft lining approximately 1/16 inch thick. The cushion shall attach to the headband by folding lengthwise
23、around the headband. 3.3.1.3 Facepiece. The transparent facepiece shall be a polyvinyl chloride sheet conforming to composition A, type I, class 1 of L-P-535, optically clear and colorless with a high polish finish on both sides. A slight green tint shall be permissible provided that the tinting doe
24、s not affect the optical clarity. The facepieces shall conform to the patterns specified in 3.5.1 and shall be permanently shaped to fit the frame. The thickness shall be 0.040 + 0.004 inch. 3.3.1.4 - Cork. composition sheet, 1/8-inch thick, conforming to type I or II, A or B, class 1 or 2 of HH-C-5
25、76. The cork for facepiece reinforcement shall be cork - 3.3.1.5 Screw and nut combination. The screw and nut combination for attaching the facepiece to the hood shall be as specified in 3.3.1.5.1 and 3.3.1.5.2 and shall be made of like material. 3.3.1.5.1 Screw. The screw shall conform to type I, s
26、tyle 9s, brass or aluminum alloy, size 6-32 NC-2A of FF-S-92 and of sufficient length to provide a tight fit between the facepiece and the hood. 3.3.1.5.2 - Nut. The nut shall conform to type III, style 15, size 6-32 NC-2 , brass or aluminum alloy of FF-N-836. 3.3.2 Basic fabric. The basic material
27、shall be resin-modified butyl coated nylon, acid and fuel resistant, conforming to MIL-C-43062. . 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-H-43077F 4 7777706 0393865 2 m MIL -H-4 307 9 F 3.3.3 Strapping and front reinforcement. The gum s
28、trapping used to seal the seams and the front reinforcement shall be made from unsupported film of the uncured coating compound used to coat the fabric, The gum strapping and reinforcement shall be 0,012 to 0.025-inch thick and thoroughly clean before application. The gum strapping shall be 3/4 + 1/
29、8 inch wide and the front reinforcement shall be cut to pattern dimensions (see 4.4 1 . 1) . 3.3.4 Cement. The cement used to seal the seams and the strapping over the seams shall be a curing-modified butyl base cement and shall meet the performance requirements specified in 3.3.9. dry, shall be app
30、roximately that of the coated fabric. As an alternative, a clear cement shall be used. The color of the cement, when 3.3.5 Loops and,straps. The loops and straps shall be made from the basic coated fabric specified in 3.3.2. The straps and loops shall be coated on the lightly coated side with cement
31、 specified in 3.3.4, folded evenly lengthwise, and rolled to ensure good adhesion. 3.3.6 Labels. Each hood shall have a combination identification and instruction label conforming to type IV, class 15 of DDD-L-20 except that the Date of Manufacture shall appear on the last line of inscription on the
32、 label. The marking medium shall be white, yellow, or light gray. The label may be marked on a piece of the uncured fabric specified in 3.3.2, then cemented on the hood and cured with the hood after assembly. well defined and clearly legible after being tested for crocking, both wet and dry when tes
33、ted as specified in 4.4,5. instruction label shall be as follows: The printed labels shall be The format and contents of the INSTRUCTIONS FOR USE 1. Wear for protection against injury from dangerous liquid fuels and oxidizers. 2. DO NOT USE the same hood for fuels and oxidizers without washing the h
34、ood between usage. 3. Always keep adjustment straps snug and properly adjusted. 4. Wear with breathing apparatus which is placed over the coveralls. Don mask before putting on hood, I NOTE: Instruction 4 shall be applicable to class 2 hoods only. 3.3.7 Snap fasteners. Snap fasteners shall consist of
35、 a size 1 or 2, 24 line size button with socket for the female half and a size 1 or 2 eyelet with stud for the male half conforming to style 2, finish 2 of MIL-F-10884. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-_I_- _ MIL-H-43077F 84 7777706
36、037166 4 W MIL -H -4 3079F 3.3.8 Slides. The slides for adjustment straps shall be 3/4 + 1/64 inch (similar to North and Judd No. 02300) conforming to commercial sEandards and made from commercial brass, 14 or 16 gage, American Standard, with a black chemical finish conforming to requirements of-MIL
37、-F-495 (see 4.4.1.1). 3.3.9 Performance. The completed hood shall meet the specified Pequirements after vulcanizing. 3.3.9.1 Fuel resistance. The completed seams, patches and surrounding area shall show no evidence of cracking, stiffening, flaking, swelling, separation of coating from the fabric, se
38、paration of strapping from the seam, separation of patch from hood, or surface tack rating greater than II, when tested as specified in 4.4.5. 3.3.9.2 Acid resistance. The completed seams, patches, and surrounding area shall show no penetration, as indicated by change of color of the detector paper,
39、 no evidence of cracking, stiffening, flaking, separation of coating from fabric, separation of strapping from the seam, separation of patch from hood, or surface tack rating greater than II, when tested as specified in 4.4.5 (see 6.7). 3.3.9.3 Seam and seam strapping adhesion. Adhesion of the seam
40、and seam strapping for all seams shall conform to requirements of table I when tested as specified in 4.4,5. TABLE 1. Requirements for seam and seam strapping adhesion Minimum Test requirement Seam gum strapping adhesion Seam gum strapping adhesion after immersion Seam gum strapping after heat aging
41、 Cemented seam adhesion Cemented seam adhesion after immersion Cemented seam adhesion after heat aging Resistance to cold crack of finished cemented and Seam hydrostatic resistance of finished cemented strapped seam and strapped seam 3.5 lblinch 3.0 lb/inch 3.0 lb/inch 3.5 lb/inch 3.0 lb/inch 3.0 lb
42、/inch 70 psi - I/ The seam shall show no signs of cracking, flaking, separation, stiffening, delamination, or tackiness after test has been performed. 3.4 Design. The design of the hoods shall be as shown on Drawings 8-2-16 and 8-2-24 listed in 2.1.2, as applicable. The hoods shall be constructed an
43、d assembled with the heavily coated side of the cloth facing to the outside. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- -. MIL-H-Ll3077F 4 W 9999906 039Lb7 b MIL -H -4 3079F 3.5 Patterns. Standard patterns which provide the proper seam allowa
44、nce for all seams will be furnished by the Government to the contractor for cutting working patterns. way and are to be used as a guide for cutting contractors working patterns. The working patterns shall be identical to the Government patterns. The Government patterns shall not be altered in any 3.
45、5.1 List of pattern parts. The hood shall be cut from materials as specified in accordance with the pattern parts indicated fn table II. TABLE II. Pattern parts Materi al Nomen cl at we Cut parts Cloth, coated, nylon resin modified, butyl coated, acid and fuel resistant Vinyl chloride sheet Cork com
46、position - Gum strapping compound Cloth, coated, nylon resin modified butyl coated, acid and fuel resistant Vinyl chloride sheet Class 1 hood Crown Front Adjustment strap Attachment strap LOOP Facing Outside facepiece Inside facepiece Out si de face piece reinforcement Inside facepiece reinforcement
47、 Front reinforcement Class 2 hood Front Crown and back Adjustment strap Attachment strap Loop Hood reinforcement patch Adjustment strap reinforcement Snap fastener reinforcement Facing Outside facepiece I nside face piece 7 1 1 1 1 1 1 1 1 1 1 1 1 2 2 1 2 2 2 1 1 1 Provided by IHSNot for ResaleNo re
48、production or networking permitted without license from IHS-,-,-_- =_ MIL-H-43077F 4 777770b 0373868 MIL -H -4 307 9 F TABLE II. Pattern parts (contd) Mat er i al Nomenclature Cut parts Cork composition Gum strapping compound Outside facepiece reinforcement Inside facepiece reinforcement .F ront rei
49、nforcement 1 1 1- 3.6 Construction. The construction-shall conform to table III and as speci f ied herein. 3.6.1 Strapping of seams. All seams on the outer surface of the hood shall be sealed with the strapping specified in 3.3.3. After seam has been cemented, the strapping shall be centered and cemented over the raw edge of the seam on the outer surface of the. hood. 3.6.2 Setting of snap fasteners. A hol
