1、MIL-P-51406A(EA) 26 March 1984 SUPERSEDING MIL-P-51406(EA) 29 October 1974 MILITARY SPECIFICATION PLASTIC SHEETS, VINYL CHLORIDE POLYMER AND COPOLYMER, FLEXIBLE This specification is approved for use by US Army Armament, Munitions and Chemical Command, Department of the Army, and is available for us
2、e by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers transparent, flexible sheets, made of vinyl chloride polymer or copolymer resins. 1.2 Classification. The sheets shall be furnished in nominal thicknesses of 0.020, 0.040, and 0.060 inches,
3、as specified (see 6.2). 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. Unless otherwise specified, the following specifications, standards, and handbooks of the issue listed in that issue of the Department of Defense Index of Specifications and Stan
4、dards (DODISC) specified in the solicitation form a part of this specification to the extent specified herein. SPECIFICATIONS MILITARY MIL-F-51110 - Faceblank - Lens, C14R3. : Beneficial comments (recommendations, additions, deletions) and any perti- : : nent data which may be of use in improving th
5、is document should be addressed: : to: Commander, Armament Research and Development Center, US Army Armament, : : Munitions and Chemical Command, ATTN: DRSMC-TSC-S(A), Aberdeen Proving : Ground, MD 21010 by using the self-addressed Standardization Document : Improvement Proposal (DD Form 1426) appea
6、ring at the end of this document : : or bv letter. FSC 9330 Obtained From GLOBAL ENGINEERING DOCUMENTS 2625 So.Hickory St. Santa Ana, CA 92707 (71 4)540-9870: (800)854-7179 a . Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STANDARDS MIL-PS140bA 93
7、m q9Fq-706 04l19177-W MIL-P-51406A(EA) FEDERAL Fed. Std. No. 123 - Marking for Shipment (Civil Agencies). Fed. Std. No. 406 - Plastic, Methods of Testing. M 1 L I TARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by MIL-STD-282 - Filter Units, Protective Clothing, Gas-Mask Components
8、MIL-STD-810 - Environmental Test Methods. Attributes and Related Products: Performance-Test Methods. 2.1.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications .form a part of this spec- ification to the extent specified herein.
9、 NATIONAT., BUREAU OF STANDARDS Circular 478 - Colorimetry. (Application for copies should be addressed to the Superintendent of Docu- ments, Government Printing Office, Washington, DC 20402.) (Copies of specifications, standards, handbooks, drawings, and publications required by manufacturers in co
10、nnection with specific acquisition functions should be obtained from the contracting activity or as directed by the contract- ing officer. ) 2.2 Other publications. The following documents form a part of this speci- fication to the extent specified herein. The issues of the documents which are indic
11、ated as DoD.adopted shall be the issue listed in the current DoDISS and the supplement thereto, if applicable. ASTM STANDARDS D568 - Test for Rate of Burning and/or Extent and Time of Burning of D570 - Test for Water Absorption of Plastics. D635 - Test for Rate of Burning and/or Extent and Time of B
12、urning of Self-supporting Plastics in a Horizontal Position. D638 - Test for Tensile Properties of Plastics. D673 - Test for Mar Resistance of Plastics. D746 - Test for Brittleness Temperature of Plastics and Elastomers D747 - Test for Stiffness of Plastics by Means of a Cantilevel Beam. Flexible Pl
13、astics in a Vertical Position. by Impact. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-P-53406A 73 S 7979906 0437378 4 E 4 MIL-P-51406A(EA) I D1003 - Test for Haze and Luminous Transmittance of Transparent Plastics. D1203 - Test for Volatile
14、 Loss from Plastic Materials. D1925 - Yellowness Index of Plastics. (Application for copies should be addressed to ASTM, 1916 Race Street, a Philadelphia, PA 19103.) 2.3 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein, the text o
15、f this specifica- tion shall take precedence. 3. REQUIREMENTS 3.1 Materials. The sheets shall be made of virgin vinyl chloride polymer or copolymer resins and whatever plasticizers, stabilizers, and lubricants that might be required to enable the finished product to satisfy the requirements of this
16、specification. 3.2 Thickness. The thickness of the sheets shall be within + 10 percent of - the nominal value (see 1.2). 3.3 Optical defects. Optical defects are defined as imbedded particles, scratches, bubbles, or any other imperfections which reduce visibility through the sheet. Excluding a l-inc
17、h margin around the periphery, the aggregate of all defective areas shall not exceed 1 percent of the area of the sheet; furthermore, the sheet shall not contain more than 8 optical defects whose major dimensions exceeds 1/32 inch. 3.4 Physical and chemical properties. The sheets shall comply with t
18、he requirements in table I when tested in accordance with the applicable test me tho d. e 3.5 Workmanship. The sheets shall be colorless, smooth, and free from blemishes, straie, waves, and damage such as cracks, splits, and other visible defects which will impair their appearance or cause distortio
19、n of vision. In addition, the sheets shall be free from contamination. 4. QUALITY ASSURANCE PROVISIONS 4.1 ResDonsibilitv for insDection. 4.1.1 Contractors responsibility. Unless otherwise specified in the con- tract or purchase order, the contractor is responsible for the performance of all inspect
20、ion requirements as specified herein. Except as otherwise specified in the contract or purchase order, the contractor may use his own or any other facilities suitable for the performance of the inspection requirements speci- fied herein, unless disapproved by the Government. The Government reserves
21、the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed r equi remen t s. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-hl O 4 hl
22、 4 hl hlm O 4 m F? .* .# .)c .K .# N m .* fi O .rl u *rl $4 al u al 2 a I! *, . O CI: U v: a; u . . O O O O I 4 e . O0 O0 04 m . I . H w J 3 *d 4 . bo O O0 wV4.G ow N I L*Z om rlu rnd-e rn I? m . , n krn ar aJ Fr $4iM OM aJ V v $.di“. . P. . n I u cd .rl U a k O rn P krd aJ Nk .rl a vu (d 5 u Ki c;
23、sl u a $4 O rn P LIN al4 uhl *e 6“ 5 .rl k aJ rd I 4.2.4 Tests. (See table 1; Note: When the same value of a requirement is to be met by sheets in both aged and unaged conditions, one-half of the number of determinations shall be made in each condition. When more than one determin- ation of a proper
24、ty in a specified condition is made, the results shall be aver- aged before comparison with the requirement, unless otherwise noted.) 4.2.4.1 Crease resistance. The crease resistance of the sheet shall be determined as follows, using specimens measuring 1 by 2 inches: (a) Condition the specimens for
25、 48 hours in an atmosphere main- tained at a temperature of 75“ - + 2F and a relative humdity of 50 - + 2 percent. (b) Fold each. specimen to form a 1 inch square, and subject it to a uniform load of 25 pounds for 5 minutes. (c) Remove the load and allow a 3 minute interval for free recovery; then i
26、mmediately measure the dihedral angle formed at the crease. In the case of a 0.020 inch thick sheet, if the plies cohere when the load is removed, postpone the start of the 3 minute interval of free recovery until the instant when such cohesion is overcome. Do not delay, however, longer than 150 sec
27、onds. 4.2.4.2 Discoloration. The discoloration of the sheet shall be determined as follows: (a) Irradiate the specimen with light conforming to standard illumi- nate C of the International Commission of Illumination (G.I.E.). (b) By spectrophotometric analysis, in accordance with Circular 478, deter
28、mine the excitation purity of the transmitted light relative to that of the incident light; disregard the dominant (or complimentary) wave length. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-P-53406A 93 W 7999406 0437382 b I MIL-P-51406A(E
29、A) (c) The deviation of excitation purity found in “b“ is the percent of discoloration. 4.2.4.3 GB resistance (vapor). GB resistance shall be determined in accord- ance with method T208 of MIL-STD-282. 4.2.4.4 HD resistance (vapor). HD vapor resistance shall be determined in accordance with method T
30、209 of MIL-STD-282. 4.2.4.5 Water absorption at 212F. The water absorption of the sheet at 212F shall be determined in accordance with the applicable portions of ASTM D570, except that boiling water shall be used in lieu of water maintained at 75“F, and the period of immersion in the boiling water s
31、hall be 1 hour. 4.2.4.6 Aging. The specimens shall be conditioned for one calendar week in circulating air maintained at 160“ - + 2F and a relative humidity of 50 - + 2 per- cent. 4.2.4.7 Weathering. Specimens, one square foot each, shall be taken from each lot to be subjected for 72 + 2 hours using
32、 an atlas weatherometer (type x-w) operating without the sprayer and using the light cam only and tested in accordance with ASTH 1925. 4.2.5 Acceptance/rejection criteria. If any specimen or average of deter- minations, as applicable, fails to meet the applicable requirements of this specification,
33、the lot represented shall be rejected. 5. PACKAGING 5.1 Packaging, packing and marking, interplant shipment (see 6.4). The vinyl chloride sheets shall be packaged and packed to provide adequate protec- tion from physical damage from the supply source to the first receiving activity for immediate use
34、 or further processing. Shipping containers shall be in compliance with the rules and regulations applicable to the mode of transpor- tation. Marking shall be in conformance with Fed. Std. No. 123 and shall include the contractors name, address, and contract number. 6. NOTES 6.1 Intended use. The ma
35、terial covered by this specification is intended for use in the manufacture of chemical-biological mask lenses and related items. 6.2 Ordering data. Acquisition documents should specify the following: (a) Title, number, and date of this specification. (b) The sheet thickness required (see 1.2). (c)
36、The laboratory to which samples should be sent for GB and HD test- ing (see 4.2.3.3). 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-t MIL-P-5L40bATTFF7TK 0417183 WL-P-51406A(EA) f 6.3 Batch. A batch is defined as that quantity of material which h
37、as been manufactured by some unit chemical process or subjected to some physical mixing operation intended to make the final product substantially uniform. 6.4 Interplant shipment. Packaging for supplies and materials which will not enter the military supply system. ments from a vendor to a subcontr
38、actor or a prime contractor, or from a subcon- tractor to a prime contractor, or from a vendor or contractor to a military arsenal or plant. Typical interplant shipments are ship- 6.5 International interest. Certain provisions of this specification are the subject of international standardization ag
39、reement QSTAG-216 and 234. amendment, revision, or cancellation of this specification is proposed which will affect or violate the international agreement concerned, the preparing activity will take appropriate reconciliation action through international standardization channels including departmental standardization offices, if required. When Custodian: Army - EA Preparing activity: Amy - EA Project No. 9330-AO48 US. GOVERNMENT PRINTING OFFICE: 1984-705-040lA3357 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
