1、- - - MIL-E-SLi.120A i.12 7779706 023517i.1 2 MIL-E-51420A(EA) 11 April 1983 SUPERSEDING MIL-E-5 142 O (EA) 26 February 1976 MILITARY SPECIFICATION EDGESEAL MATERIALS, CHEMICAL-BIOLOGICAL FILTER This specification is approved for use by US Army Armament Research and Development Command, Department o
2、f the Army, and is available for use by all Departments aiid Agencies of the Department-of Defense. 1. SCOPE 1.1 Scope. This specification covers two types of heat-fusing material for edgesealing fibrous components of protective equipment. 1.2 Classification. Edgeseal material shall be one nf the fo
3、llowing types as specified (see 6.2). Type I - For filter element sets in M17, M17A1 and M17A2 chmical- Type II - For filter panels in M2 infant protector. biological masks. 2. APPLICABLE DOCUMENTS 2.1 Cavernment documents 2.1.1 Specifications, standards, and handbooks. Unless otherwise specified, t
4、he following specifications, standards, and handbooks of the issue listed in that issue of the Department of Defense Index of Specifications and Standards (DoDISS) specified in the solicitation form a part of this specification to the extent specified herein: : Beneficial comments (recommendations,
5、additions, deletions) and any perti- : : nent data which may be of use in improving this document should be addressed: : to: Commander, US Army Armament Research and Development Command, ATTN: : DRDAR-TSC-S, Aberdeen Proving Ground, MD 21010 by using the self-addressed : : Standardization Document I
6、mprovement Proposal (DD Form 1426) appearing at : : the nd of this document or by letter. : FSC 4240 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-E-51420A 42 W 4947996 0235175 4 m MIL-E-5 1420A( EA) SPECIFICATIONS 1.11 L ITARY MIL-F-51425 - F
7、ilter Element Set, Chemical-Biological Mask, M13A2. S TANDAKDS Fed. Std. No. 123 - Marking for Shipment (Civil Agencies). Fed. Std. No. 406 - Plastics; Methods of Testing. Fed. Std. No. 595 - Colors. (Copies of specifications, standards, handbooks, drawings, and publications required by manufacturer
8、s in connection with specific acquisition functions olisuld be obtained from the contracting activity or as directed by the contract- ing oPficer.) 2.2 Other publications. The following document6 form a part of tliis speci- ficatioti to the extent specified herein. The issues of the documents which
9、are indicated as DoD adopted-shall be the issue listed in the current DoDISS and Lhe supplement thereto, if applicable. ASTH STANDARDS 11412 - Rubber Properties in Tension, Test for. DU24 - Rubber Property 7 Tear Resist nce, Test for. D1203 - Loss of Plasticizer from Plastics (Activated Carbon Metho
10、ds), B2137 Test for . Coated Fabrics, Test for. - Rubber Property - Brittleness Point of Flexible Polymers and (Application for copies of the above publications should be addressed to ASZTl, 1916 Race Street, Philadelphia, PA 19103.) 2.3 Order of precedence. In the event of a conflict between the te
11、xt of this specification and the references cited herein, the text o this specifica- Cton r;liall take precedence. 3 . REQUIREMENTS 3 . 1 t4atarial 3.1.1 Type I. Type I edgeseal material shall be “Wooster A-466-2 or Provideiice 11-3557 Low Migration Plastisol” (see 6.5). sist of polyvinyl chloride (
12、PVC) dispersed in suitable liquid plasticizers, with sufficient stabilizers, and with pigments and fillers yielding a gray color similar to No. 36081 of Fed. Std. No. 595. The material shall not be The material shall con- L 2 i Provided by IHSNot for ResaleNo reproduction or networking permitted wit
13、hout license from IHS-,-,-MIL-E-SIMOA iz m vvmb 02351 b m MIL-E-5 1420A( EA) hazardous or detrimental to molding equipment. The material shall be packaged in containers whose normal capacity is not greater than 5 gallons (U.S.). Any change in ingredients or in quantities beyond the tolerable range o
14、f variation (see (b) below) shall constitute cause for submission of a new preproduction sample (see 3.8). The contractor shall submit the following information,which he may designate as “company confidential“, in which case it will be so treated by the Government: (a) Chemical and trade names of al
15、l ingredients in the edgeseal material. If the chemical name can not be obtained, the trade name shall be sufficient . (b) The purity and quantity, with allowable tolerances for each ingre- dient as required to fully define the edgeseal material. gredient shall be expressed in percent by weight or i
16、n parts by weight. Quantity of each in- 3.1.2 Type II. Type II edgeseal material shall be made from either one of the following formulations. In all other respects type 11 edgeseal material shall satisfy 3.1.1. (a) Wooster A466-2A low migration plastisol (see 6.5) conslsting of A466-2 with a minimum
17、 of 88 percent of the approved PVC base resin and maximum of 12 percent of a substitute of PCV resin. (b) Providence D-3558 low migration plastisol (see 6.5) consisting of D-3557 with a minimum of 88 percent of the approved PVC base resin and a maxi- mum of 12 percent of a substitute of PVC resin. 3
18、.2 Compatibility (type I only). Filter elements molded with type I edge- seal material shall meet the requirements of MIL-F-51425 when inspected as specified in 4.3.2.2. 3.3 Physical properties. Standard specimens fabricated from the edgeseal material shall conform to the requirements of table I bef
19、ore and after aging. TABLE I. Physical properties. Property Requirement : Test . : Unaged : Aged* : paragraph : : Hardness (shore A) : 65 4- 5 : 65 + 5 : 4.4.4.2 : : Average tensile strength (ib/in2) : 1000 min : 1000 min : 4.4.4.3 : : Average tear strength (lb/in) : 100 min : 100 min : 4.4.4.5 : *A
20、ging. The test specimens shall be subjected to an exposure cycle of 24 hours at 175 + 2F and 24 hours at -40 + 2F. The specimens shall be held at 73.5 7 2F and 50 A -i- 2 percent relative humidity for a minimum of 48 hours beyore testing. : Degree of blocking, max : Slight : - : 4.4.4.4 : , ._- . .
21、3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-E-5142 42 M 977990b O235197 m MIL-E-5 1420A( EA) e 3.4 Brittleness. Specimens fabricated from the edgeseal material shall show no cracks, fissures, crazing, or ruptures when tested as specified i
22、n 4.4.4.6 at a temperature of -10 - 4- 2F. 3.5 Volatile loss. The edgeseal material shall not show a loss in weight grciiterTmcent when tested as specified in 4.4.4.7. 3.6 Viscosity. The viscosity of the edgeseal material shall be 4000 I 3. 1000 centipoisec when tested as specified in 4.4.4.8. 3.7 I
23、nstruction sheet. The preproduction lot shall be accompanied by an instruction sheet containing the following information: (a) Title, number, date of this specification and type of edgeseal (b) Materials designation. (6) Recommended storage conditions (d) Estimated shelf life (under recommended stor
24、age conditions) to main- (e) ma e erial . tain required viscosity (see 3.6). fied by the procuring activity. tlier information considered useful by the manufacturer or speci- 3.8 Preproduction. Prior eo the start of regular production, a preproduc- cion lot: of edgeseal material shall be produced fo
25、r testing in accordance with 4.3. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. 4.1.1 Contractors responsibility. Unless otherwise specified in the con- tract or purchase order, the contractor is responsible for the performance of al1 inspection requirements as specified herein.
26、 in the contract or purchase order, the contractor may use his om or any other facilities suitable for the performance of the inspection requirements speci- fied heroin, uiilcss disapproved by the Government. right to perform any of the inspections set forth in the specification where such Inspectio
27、ns are deemed necessary to assure supplies and services conform to prescribed requirements. IncludingTctual test results acceptable to the contracting of f icer that the requirements of 3.1 and section 5 for which specific inspection has not been provided in this specification have been satisfied. E
28、xcept as otherwise specif ied The Government reserves the 4.1.2 Objective evidence. The contractor shall provide objective evidence 4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: (a) Preproduction inspection (see 4.3). (b) Quality conforman
29、ce inspection (see 4.4). 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-E-51920A q2 m 7777706 0235378 T W MIL-E-51420A(EA) , 4.3 Preproduction inspection. 4.3.1 Sample. 4.3.1.1 Edgeseal material. A preproduction sample of 55 gallons of edgese
30、al material shall be produced using the same methods, materials, and equipment as will be used in regular production. 4.3.1.2 ments shall be produced in accordance with the preproduction provisions of MIL-F-51425. Filter elements (type I only). A preproduction lot of filter ele- 4.3.2 Inspection pro
31、cedure. 4.3.2.1 Edgeseal material. A 1-quart specimen shall be taken from the pre- production sample and test slabs shall be prepared as specified in 4.4.4.1 for testing in accordance with 4.4.4.2 through 4.4.4.7. In addition, a portion of the 1-quart specimen shall be tested for viscosity in accord
32、ance with 4.4.4.8. 4.3.2.2 Filter elements (type I only). The preproduction lot shall be examined and tested in accordance with the preproduction provisiops of l4T.L-11-51425 to determine compliance with the compatibility requirement speci- fied in 3.2 (see 6.6). 4.3.3 Acceptance/rejection criteria.
33、 If the edgeseal material fails any of the tests specified in 4.3.2 it shall be rejected. 4.4 Quality conformance inspection. 4.4.1 Lotting. A lot shall consist: of the edgeseal material of one type produced by one manufacturer in no more than 24 consecutive hours under essen- tially the same manufa
34、cturing conditions and with no change in materials, pro- vided the operation is continuous. In the event that the process is a batch operation, each batch shall constitute a lot (see 6.3). 4.4.2 Sampling. In the case of a continuous process, the unit of product shall be 5 gallons. from each lot. Fro
35、m each container in the sample, a 1-quart specimen shall be removed and placed in a clean, dry container labeled to identify the specimen with lot and sample container represented. In the case of batch processing, a 5-gallon sample shall be taken from each batch while the material is stored iri the
36、final mixing tank. reiiiove and placed in a clean, dry container labeled to identify the specimen with batch represented. A sample of five units of product shall be taken at random From the 5-gallon sample a 1-quart specimen shall be 4.4.3 Inspection procedure. specimen as specified in 4.4.4.1, and
37、the slabs shall be tested in accordance with 4.4.4.2 through 4.4.4.7. Also, a portion of each 1-quart specimen shall be tested as specified in 4.4.4.8. Test slabs shall be prepared from each 1-quart 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4
38、.4.4 Tests. 4.4.4.7 Volatile loss. Three specimens prepared as specified in 4.4.4.1 sliall be teyted in accordance with method A of ASTM D1203 except that the char- coal shrill be new and unused Fisher Scientific Company Activated Coconut Shell Clinrconl., Catalog No. 5-685, 6 X 14 mesh, as manufact
39、ured by Barnebey-Cheney. i 4.4.4.8 Viscosity. The edgeseal material shall be thoroughly mixed by etirriiig for at least 1 minute immediately prior to drawing the specimen and performing the viscosity test. The viscosity shall be determined using a model LVP Bsookfiald Viscosimeter assembled with a n
40、umber 4 spindle at 30 revolutions per mhute in accordance with the directions supplied by the manufacturer of I 4.4.4.1 Preparation of test specimens. Specimens for testing the fused edge- seal niaterial shall be made in open aluminum molds 6-1/2 inches by 6-1/2 inches by no rimre than 1/2 inch thic
41、k, with a cavity size 6 inches by 6 inches and of suficiblt: depth to produce a sheet 0.075 i- 0.005 inch in thickness. The mold cav-tty shall be filled with fully dispersed edgeseal material and placed in a niechanical., convection, recirculating type oven at a temperature of 375 i- 2F so that the
42、mold is essentially level. 350“P 86 indicated by a thermocouple placed in the center of the thickness of tho sainplc. iiilcrnnl. tenperature of the material; care should be exercised to insure that tlic thennocouple does not bottom on the mold cavity.) by the thermocouple, hold specimen in oven for
43、3 (plus 1 or minus O) minutes, re!:.ove the mold from the oven, and cool it at room temperature for 8.0 +- 1.0 niimite olJ.owed by force-cooling to room temperature within 10.0 i- 1.0 minute of removal from oven. of maldiiig the fused sheets. applicable test method. The edgeseal material shall be fu
44、sed at (.4 suitably calibrated thermocouple shall be used tg determine the Once 350F is indicated Condtioning of specimens shall commence sthin 48 hours The conditioning shall be in accordance with the 4.4.4.2 Hardness. Tiiree specimens prepared as specified in 4.4.4.1 shall be tested in accordance
45、with method 1082 of Fed. Std. No. 406. 4.4.4.3 Tensile strength. Six specimens prepared as specified in 4.4.4.1 shall be tested in accordance with ASRl D412. standard dumbell die C. 4.4.4.4 BlockinA. The specimens shall be cut with Six specimens prepared as specified in 4.4.4.1 shall be GUC and form
46、ed into three sandwiches (two specimens per sandwich) and tested in square idch and a temperature of 158 i- 2F shall be used. . accordance with method 1131 of Fed. Std. No. 406, A pressure of 1 pound per - 4.4.4.5 Tear strength. Three specimens prepared as specified in 4,4.4.1 shall be tested in acc
47、ordance with ASnl D624, using die C. I 4.4.4.6 Brittleness. .Five specimens prepared as specified in 4.4.4.1 shall be tested at -10“ - 4- 2F in an air heat transfer medium in accordance with ASTM U2137. 8 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS
48、-,-,-MIL-E-51420A q2 9 7779906 0235200 4 mi MIL-E-5 142UA( EA) 4 , the instrument. - + 2F. facture. Viscosimeter shall employ the spindle guard during measurements. Readings shall be taken after 1.5 minutes I -i- 10 seconds. The edgeseal material shall be tested at a temperature of 77“ Material shal
49、l be at least 7 days old as measured from date of manu- 4.4.5 Acceptance/rejection criteria. If the edgeseal material fails to meet any of the tests specified in 4.4.3, the lot represented shall be rejected. 5. PACKAGING 5.1 Unlt packing and packing, interplant shipment (see 6.4). The edgeseal material shall be unit packed and packed to prevent damage in shipment from the supply source to the first receiving activity. Shipping
