1、MIL-C-ZLLOSC 83 W 777970b 0362586 8 m c i3 -37- 70 -I. L L -_ -* 1 NOT MEASUREMENT SENSITIVE - I I 1. MIL-C-21109C(AS) 20 October 1988 SUPERSEDING 10 August 1966 MIL-C-21109B(AS) MILITARY SPECIFICATION CLOTH, COATED, NYLON, RAFT BOTTOM This specification is approved for use by the Naval Air Systems
2、Command, Department of the Navy, and is available for use by all Departments and Agencies of the Department of Defense. SCOP E 1.1 Scope. This specification covers the requirements for nylon base 1.2 Classification. The raft bottom coated cloth shall be of the natural or synthetic natural rubber coa
3、ted cloth. following types as specified (see 6.2): Type I -I 7 oz. Type II - 14 oz. 2. APPLICABLE DOCUMENTS 2.1 Government documents. * 2.1.1 Specifications and standards. The following specifications and standards form a part of this document to the extent specified herein. otherwise specified, the
4、 issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.2). Unless SPECIFICATIONS Federal * PPP-P-1136 Mi 1 i tary MIL-C-21108 Packaging of Coated (Plastic; Rubber) a
5、nd Laminated Fabrics Cloth, .Nylon, Raft Bottom - _-_ _- -_- - - . - -.- I comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Systems Engineering and Standardization Department (Code 531, Naval Air Engineerin
6、g Center, Lakehurst, NJ 08733-5100, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) amearina at the AMSC NIA DISTRIBUTION STATEMENT A. _ . I _ _I_ -. -. THIS DOCUMENT CONTAINS 13 PAGES* - document or by letter. - / FSC 8305 Approved for public release; distri
7、bution is unlimited. p p-ppp_- Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-L1109C(AS) STA NDA RD Federal FED-STD-141 Paint, Varnish, Lacquer, and Related Materals, FED-STD-191 Text1 le Test Methods FED- S TD- 5 9 5 Methods of Inspection, Sa
8、mpling, and Testing Colors FED-STD-601 Rubber, Sampling and Testing Mi 1 i tary MI L-STD- 105 Sampl ing Procedures and Tables for Inspection by Attributes * (Unless otherwise indicated, copies of federal and military specifications, standards and handbooks are available from the Naval Publications a
9、nd Forms Center, (ATTN:NPODS), 5801 Tabor Avenue, Philadelphia, * 2.2 Order of precedence. In the event of a conflict between the text of this document and the references cited herein the text of this document shall take precedence. Nothing in this document, however, supersedes applicable laws and r
10、egulations unless a specific exemption has been obtained. 3 REQUIREMENTS * 3.1 Firs.t article. When specified (see 6.31, a sample shall be subjected to first article inspection (see 6.3) in accordance with 4.4. PA 19T20-5099.) 3-2 Materials. The coated cloth shall consist of nylon base cloth uniform
11、ly coated with a natural rubber or synthetic natural rubber base compound. 3.2.1 Base cloth. The base cloth shall conform to the requirements of MIL-C-21108, Type I or II as required in 3.3. 3.2.2 Coating. The compound used in coating the base cloths shall contain not less than 80 percent by volume
12、of-new plantation natural rubber or synthetic natural rubber. The compound shall al so contain softeners, curing agents, antioxidants and reinforcing materials. The compound used in the outer coatings shall be pigmented during the compounding process so that the cured coating shall have a uniform an
13、d permanent color as specified in 3.5. The pigment shall be of such fineness that 100 percent of the pigment shall pass through a standard 325 mesh screen. The foundation coating and rubber coating compounds shall not be injurious to the base cloth and shall contain no compounding ingredients which
14、would bloom to the surface or which would adversely affect the specified properties of the finished coated cloth. The compounding ingredients shall be prepared in s-uch proportions as to cure properly and provide proofing films which shall be insoluble in water to the 2 , Provided by IHSNot for Resa
15、leNo reproduction or networking permitted without license from IHS-,-,-MIL-C-ZLLOSC 3 E 777770b 0382588 I MIL-C-21109C(AS) -I.-L.-I-.-l Characteristic -.-.-.-.-.- Tensile strength Original, psi After heat aging for 168 hours at 100 5 1.1“C (212 5 2“F), percent loss Original, percent After heat aging
16、 for 168 hours at 100 5 1.1“C (212 5 2“F), percent loss El ongat i on extent that the coating compound water extractable matter shall amount to no more than 1 percent by weight (see 4.6.6). The coating compound, cured in sheet form to the same degree of cure and in the same manner as the finished pr
17、oduct, shall conform to the physical requirements specified in Table I. -_-.-I-. _I_- i . . -. -.-.-.- - FED-STD-601 Requirement Test Method -a.- .- -. _. . _a_ _._-._l_ 4111 722 1 - 2300 min i I i i 30 max 450 min 15 max 41 11 7221 - i t Coated Cloth Type 1 Type 1.1 I. 50 1: 10 I i change t Shore h
18、ardness Original After heat aging for 168 hours at 100 5 1.1“C (212 5 +?OF), - +5 -_L-*-“. .-.*- .- -.- -.“ - I. Nylon Cloth MIL-C-21108 Rubber Coating Total Weight Ounces Per Square Yard Type Ii o!- 1 6.3 to 7.1 2 + 0.2 Rubber Coating Compound Side One Type 1 -du .u.yI_-YII -._LIP- -.e.-.- - - -. ,
19、 - -. 2 5 0.2 2.7 max - 13.3 to 14.3 -.I_*._I. _-_-_I- - 5.5 max 4.2 $I 0.2 peu Y-IYI- , 4.2 5 0.2 302 1 3.2.2.1 Coating adhesion. The coating adhesion test specimens described in 4.4.1.1.shall have a coating adhesion of not less than 7.0 pounds per inch of width when tested as specified in 4.6.6.4.
20、 3.3 Construction and weight distribution. The construction and weight distribution of components of the finished cloth shall be as specified in Table II. 3.3.1 Manufacture. A foundation coating, which shall be compatible with the base cloth and the remainder of the coating compound, shall be applie
21、d to the base cloth in order to achieve the required adhesion. pound shall then be applied to the base cloth by means of a spread coating operation. The rubber coating compound shall be applied in a sequence of The coating com- 3 Provided by IHSNot for ResaleNo reproduction or networking permitted w
22、ithout license from IHS-,-,-MIL-C-ZLLOSC 3 W 7777906 03Z587 3 operations so that both sides of the cloth shall be coated and built up to the construction shorn in Table II. The pigment shall be incorporated in the outermost coatings. The coated cloth shall be cured to meet the requirements of this s
23、pecification. The cured coated cloth may be lightly dusted with talc or zinc stearate. 3.4 Age. Cloth offered for acceptance under this specification shall be from current production, and not more than 90 days old prior to release for shipment. The date of completion of the coating operations shall
24、be stamped at the end of each roll and on the identification tags. The ink used for stamping this date of manufacture on the roll shall be free of manganese and copper (see 4.6.4 and Table VI). 3.5 Color. Unless otherwise specified, the uniform permanent color of the finished coated cloth shall be a
25、n approximate match to FED-STD-595 color number 12197 (see 4.6.8). 3.6 Properties of coated cloth. The coated cloth properties shall con- form to the requirements specified in Table III and in the following para- graphs when tested as indicated. TABLE III. Properties of coated cloth. Characteristic
26、Breaking strengfh, grab method As received, pounds, min (see 4.5.9) Warp Filling After heat aging for 168 hours at 93 2 1.1 “C (200 breaking strength loss, percent, max 2F) Hydrostatic resistance, pounds per sq. in., min (see 4.5.9) As received After heat aging for 168 hours at 93 2 1.1“C (200 5 2F)
27、 Blocking at 93 2 1.1“C (200 2 2“F), rating, max (see 4.5.11) 5850 10 5512 50 ement Type II j-a-%-.ll 300 300 10 1 O0 1 O0 2 3.6.1 Resistance to heat aging. The coated cloth shall not become stiff and brittle or soft and tacky after heat aging for 168 hours at 93 5 1.1“C (200 2 2F) (see 4.6.9). 3.6.
28、2 Resistance to low temperature exposure. The coated cloth shall show no signs of cracking after 1-ow temperature exposure for 4 hours at -54 5 1.1“C (-65 5 2F) and testing as specified in 4.6.10. a .- 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-
29、,-4 MIL-C-2LLOSC 3 W 7797706 0382590 T t MIL-C-21109C(AS) 3.7 Dimensions. Unless otherwise specified, the coated cloth shall be furnished in rolls with a minimum length of 250 yards and a maximum length of 350 yards. The minimum length of pieces shall be 50 yards. Width shall be as specified by the
30、procuring activity. evenly woven base cloth evenly coated and uniformly processed to produce the quality and grade of product established by this specification. rence of defects shall not exceed the applicable acceptable quality levels speci f i ed herei n. a 3.8 Workmanship. The finished coated clo
31、th shall be made from clean, The occur- 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements (examinations and tests) as specified herein. Exce
32、pt 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 specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections
33、set forth in the specification where such inspections are deemed necessary to ensure supplies and services conform to prescribed requirements. * 4.1.1 Responsibility. for compliance. All items shall meet all require- ments of Sections 3 and 5. The inspection set forth in this specification shall b-e
34、come a part of the contractors overall inspection system or quality program. shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling inspection, as part of manuf
35、acturing operations, is an acceptable practice to ascertain conformance to requirements, however, this does not authorize submission of known defective material, either indicated or actual, nor does it commit the Government to acceptance of defective material. The absence of any inspection requireme
36、nts in the specification a * 4.2 Classification of inspections. The inspection requirements spec- ified herein.are classified as follows: a. First article inspection (see 4.4). b. Quality conformance inspection (see 4.5). * 4.3 Inspection conditions. Unless otherwise specified, all inspections shall
37、 be performed in accordance with the test conditions specified in 4.6. 4.4 First article inspection. The first article inspection of the raft bottom coated cloth shall consist of all the examination and test requirements of this specification. * 4.4.1 First article inspection samples. Unless otherwi
38、se specified, as soon as practicable after the award of the contract or order, the contractor shall fuhish first article samples of each type of cloth for inspection to determine conformance with this specification. The first article inspection Provided by IHSNot for ResaleNo reproduction or network
39、ing permitted without license from IHS-,-,-MIL-C-21109C 3 9999906 0382591 I MI L-C-2 1 109C(AS) sample shall consist of required specimens of coated cloth, base cloth, a coating adhesion test specimen prepared as described in 4.4.1 .l, and sheets of cured coating compound. The size and quantities of
40、 components of the first article sample shall be specified by the procuring activity. When a con- tractor is in continuous production of the cloth from contract to contract, submission of further first article inspection samples, on the new contract, may be waived at the discretion of the procuring
41、activity. Approval of the first article inspection samples or the waiving of the first article inspec- tion does not waive the requirements of performing the quality conformance inspection. The first article inspection samples shall be furnished to the Government as directed by the contracting offic
42、er (see 6.2.1). article inspection sample shall be identified by securely attached tags or labels durably marked with the following information: The first Sample for First Article Inspection CLOTH, COATED, NYLON, RAFT BOTTOM Name of manufacturer Name of distributor (if applicable) Product designatio
43、n (manufacturers) Date of manufacture Submitted by (name) (date) for first article inspection in accordhnce with the requirements of MIL-C-Z1109C(AS) 4.4.1.1 Coating adhesion test specimen. The coating adhesion test specimen shall be prepared by the manufacturer (coater). Each of 2 pieces of base cl
44、oth (see 3.2.1) measuring 12 by 12 inches shall be coated with the uncured coating compound of 3.2.2. The specimen shall be constructed so that adhesion will be measured in the warp direction. The 2 pieces shall be placed together, coating to coating, except for a 1 inch wide separation along one ed
45、ge allowed by insertion of paper. The specimen shall be cured in the same manner and degree of cure as the finished product. Specimens shall be made to represent the construction and weight distribution as shown in Table II. * 4.4.2 Test report. Two copies of the contractors test report, con- tainin
46、g complete test data for the end item and for each component required herein and referring specifically to the applicable paragraphs, shall be sub- mitted with the first article inspection sample. 4.5 Quality conformance inspection. The quality conformance inspection shall consist of all the examina
47、tion and test requirement specified herein except for coating adhesion (4.6.6.41, resistance to heat aging (4.6.9), and resistance to low temperature exposure (4.6.10)- All the sampling and inspec- tion levels shall conform to MIL-STD-105. 4.5.1 Quality conformance inspection samples. 4.5.1.1 Inspec
48、tion lot. A lot of coated cloth shall consist of a quantity of the product manufactured from 10 batches of coating compound or fraction thereof manuPactured under essentially the same conditions, and offered for delivery at one time. 1 yard each, unless otherwise specified. The lot size shall be exp
49、ressed in units of ,“ i 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-I a Lot Size in Yards Up to 1300 L/ 1301 to 3200 3201 to 8000 MIL-C-2LLOSC 3 7777706 0382572 3 MI L-C-21109C(AS 1 ,. ._ _._ .I_I * - - .- Max Number of Defects Acceptable in Sample O O O XYIL-I.-I-*- -.- . _
