DLA MIL-G-17594 B-1967 GROMMET PLASTIC UNICELLULAR HIGH DENSITY《高密度单细胞塑胶索环》.pdf
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1、MIL-G-l7594B(SIIPS) 16 October 1967 SUPERSEDING MIL - G- 17 5 94A (SHIPS) 8 February 1963 (See 6.3) MI LI TARY SPEC I FI CAT ION GROMbIET, PLASTIC, UNICELLULAR, HIGH DENSITY 1. SCOPE 1.1 This specification covers one type of buoyant, high density, foamed plastic 2. APPLICABLE DOCUMENTS 2.1 The follo
2、wing documents of the issue in effect on date of invitation for bids grommet of the shape and dimensions specified on Drawing S8225(5)-1170434, or request for proposal, form a part of the specification to the extent specified herein. SPEC1 F ICATIONS FEDERAL C-C-91 - Candles, Illuminating. MIL-P-116
3、 Preservation, Method of MIL-C-17415 - Cloth, Coateci, and Webbing, Inflatable Boat and Miscellaneous MIL I T ARY Use. STANDARDS FEDERAL FED-STD-595 - Colors. FED-STD-601 - Rubber: Sampling and Testing. MIL-STD-293 - Visual Inspection Guide for Cellular Rubber Items. PIIL-STD-414 - Sampling Procedur
4、es and Tables for Inspection by Variables for MIL I TARY Percent Defective. DRAWING NAVAL SHIP EKGINEERING CLNTER S8225(5)-1170434 - Inflatable Boat Equipment-Rescue Line-Details and Arrangements. (Copies of specifications, standards, drawings, and publications required by suppliers in connection wi
5、th specific procurement functions should be obtained from the procuring activity or as directed by the contracting officer.) 2.2 Other publications. The following documents form a part of this specification to the extent specified herein. Unless otherwise indicated, the issue in effect on date of in
6、vitation for bids or request for proposal shall apply. UN IFORd CLASS I FI CATION COMIIITTEE Uniform Freight Classification Rules. (Application for copies should be addressed to the Uniform Classification Committee, 202 Union Station, 516 West Jackson Boulevard, Chicago, Illinois 60606.) Licensed by
7、 Information Handling ServicesMIL-G-L757LlB 53 7777906 0302032 2 W MIL-G-l7594B(SHIPS) AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) D-471 - Change in Properties of Elastomeric Vulcanizates Resulting from Immersion in Liquids. (Application for copies should be addressed to the American Society f
8、or Testing and (Technical Society and Technical Association Specifications and Standards are generally Materials, 1916 Race Street, Philadelphia, Pennsylvania 19103.) available for reference from libraries. and using Federal agencies.) They are also distributed among technical groups 3. REQUIREMENTS
9、 3.1 Material * 3.1.1 Plastic. The fiastic material shall be a poly (vinyl chloride) homo or copolymer containing phosphate plasticizers and compounded and pigmented to meet all the applicable requirements of this specification. used in formulating the plastic meets this requirement shall be provide
10、d as specified in 4.3.1.1. Evidence that the resin and plasticizer 3.1.2 Form. 3.2 Finished grommet. 3.2.1 Physical properties. The plastic material shall be in the form of a flexible foam, composed of minute, evenly distributed closed cells of uniform size. The finished grommet shall conform to the
11、 properties of table I. Table I - Physical properties. 2 Property Density,.pounds per cubic foot Compression resistance at 25 percent deflection, pounds Buoyancy net, pounds Weight, grams Strength in tension, initial pounds Strength in tension, after 1 week at Volume loss on heat aging after 1 week
12、Blocking after 1 week at 165F. 3il resistance Fire resistance - flame duration, seconds Fire resistance - length of char, inches 16SF., pounds at 16SF., percent Requirement Minimum Maximum 25 40 0.1 160 200 150 - No No - - 55 80 190 - - 5 Bloc king Swelling 30 3 Test Reference 4.4.1 4.4.2 4.4.3 4.4.
13、4 4.4.5 4.4.6 4.4.7 4.4.8 4.4.9 4.4.10 4.4.10 3.2.2 Color. The color shall be orange, between textile sea rescue color and color 97 of FE-595. The grommet shall be uniformly pigmented throughout. 3.2.3 Shape and dimensions. 3.2.4 Construction. 3.2.5 Odor. The grommet shall be free of objectionable o
14、dor. 3.3 Workmanshi from imper#ch may affect their serviceability or appearance. The plastic grommet shall conform to the shape and dimensions specified in Drawing S8225(5)-1170434. shall have a natural skin. The ring forming the grommet shall be molded in one piece and Finishing operations are rest
15、ricted to trimming the mold flash. The grommets shall be of uniform workmanship and shall be free 2 Licensed by Information Handling ServicesMIL- G- 17 594B (SHIPS) 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or Except as otherwise sp
16、ecified, the supplier may utilize his purchase order, the supplier is responsible for the performance of all inspection require- ments as specified herein. own facilities or any commercial laboratory acceptable to the Government. The Government reserves the right to perform any of the inspections se
17、t forth in the specification where such inspections are deemed necessary to assure that supplies and services conform to the prescribed requirements. 4.2 Sampling. 4.2.1 Lot. For purposes of sampling, examination and tests a lot shall consist of all grommetsofthe same size and composition, not excee
18、ding 1,000, offered for delivery at one time. shall be selected from each lot in accordance with the sampling plan of table II for the examination specified in 4.3.1. 4.2.2 Sampling for visual and dimensional examination. A random sample of grommets Table II - Sampling for visual and dimensional exa
19、mination AQL (approx.) = 1.5 percent defective. Number of grommets in an inspection lot 15 and under 16 to 40 41 to 110 111 to 300 301 to 500 501 to 800 801 to 1000 Number of grommets in sample 10 15 25 35 50 75 Acceptance (defect ives ) number Rejection number (defectives) 1 1 2 6 3 4 4.2.3 Samplin
20、g for tests. A random sample of grommets shall be selected in accordance wth table III from each lot that passes the examination of 4.3.1. Quality conformance tests shall be conducted as specified in 4.3.2. Table III - Sampling for tests. Number of grommets Number of grommets 4.4.8 in inspection lot
21、 to be tested (except (Blocking). blocking 4.4.8) up to 8 9 to 15 16 to 25 26 to 50 51 to 90 91 to 150 151 to 500 501 to 1000 None 2 (both must pass) 3 4 5 7 10 15 (Both sample units must pass) “ L 2 L 2 L 2 6 2 4.3 Quality conformance inspection. 4.3.1 Visual and dimensional examination. Each of th
22、e sample grommets selected in accordance with table II shall be visually and dimensionally examined to verify compliance with the requirements for color (3.2.2), shape and dimensions (3.2.3), construction (3.2.4) odor (3.2.5), and workmanship (3.3). Each of the sample grommets shall also be examined
23、 for the defects listed in MIL-STD-293, as applicable. Any grommet in the sample containing one or more visual or dimensional defects shall not be offered for delivery, and if the number of defective grommets in the sample exceeds the acceptance number of table II, the lot represented by the sample
24、shall be rejected. Licensed by Information Handling ServicesMIL-G- 17 594B (SHIPS) 4.3.1.1 Certification of composition. Contractor shall furnish certification that the resin used in formulating the plastic material (3.1) is a homo or copolymer or poly (vinyl chloride) and that phosphate plasticizer
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