1、I INCH-POUND I MIL-T-3530H 20 February 1991 SUPERSEDING MIL-T-3530G 24 September 1984 MILITARY SPECIFICATION THREAD AND TWINE, MILDEW RESISTANT OR WATER REPELLENT TREATED This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE AND CLASSIFICATION
2、1.1 Scope. This specification contains the requirements for thread and twine treated for mildew resistance and thread treated for water repellency. 1.2 Classification. The treated thread or twine shall be of the following types and classes, as specified (see 6.2). Beneficial comments (recommendation
3、s, additions, deletions) and any pertinent data which may be used in improving this document should be addressed to: U.S. Army Natick Research, Development, and Engineering Center, Natick, MA 01760-5019 by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of
4、 this document or by letter. AMSC NIA FSC 8310 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-3 530 H Type I - Mildew resistant treated thread and twine Class 1
5、- Copper 8-quinolinolate Class 2 - 2,2 methylene-bis - (4-chlorophenol) Type II - Water repellent treated thread Class 3 - Quarpel type for cotton, nylon, polyesCer, nomex and polyester-covered or cotton-covered polyester core thread (soft or bonded finish, as specified see 6.7). 2. APPLICABLE DOCUM
6、ENTS 2.1 Governinent documents. 2.1.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this docment to the extent specified herein. Unless otherwise specified, the issues of these documents are those listed in the issue of the Department
7、 of Defense Index of Specifications and Standards (DODISS) and supplement thereto, cited in the solicitation (see 6.3). S TANDARD S FEDERAL FED-STD-191 - Textile Test Nethods M 1 L I TARY MIL-STD-105 - Sanpling Procedures and Tables for Inspection by Attributes (Unless otherwise indicated, copies OE
8、 federal and military specifications, standards, and handbooks are available from the Standardization ilocuinents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.2 Order o precedence. in the event of a conflict between the text of this docunent and the references cited h
9、erein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a sample shall be subjected to first article inspection (see 6.
10、3), in accordance with 4.3. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-c i. MIL-T-3530H 83 9997906 0469520 MIL-T-3 530H 3.2 Laboratory report approval. Unless otherwise specified (see 6.21, at the time of submission of a bid, the bidder shall
11、submit to the contracting officer a certified copy of a recent laboratory report covering treated thread or twine which he proposes to deliver. Unless otherwise specified by the contracting officer, the bidder shall certify that the laboratory report submitted covers thread or twine which was treate
12、d in a plant where the thread or twine will be treated if the contract is awarded. This laboratory report shall contain the test data which demonstrates that the finished product which the bidder proposes to deliver has been tested in conformance with and found to comply with the requirements of thi
13、s specification. Any one of the following types of reports will be satisfactory from the standpoint of this requirement: a. An independent or commercial laboratory report. b. The prospective contractors own laboratory report. c. A government laboratory report from a contract within 6 months of date
14、of submission of bid. The purpose of the above requirement is to assist the Government in determining the capability of bidders to treat thread and twine so as to meet all the requirements of this specification. The submission of an acceptable report under this requirement shall not be construed as
15、relieving a contractor from subsequently mee.ting all requirements of this specification on all deliveries. 3.3. Standard sample. When a standard sample is available (see 6.41, the treated thread or twine shall match the standard sample for shade and shall be equal to or better than the standard sam
16、ple with respect to all characteristics for which the standard is referenced. 3.4 Material. It is encouraged that recycled material be used when practical as long as it meets the requirements of this specification. 3.4.1 Thread and twine. The document governing the untreated thread and twine to be t
17、reated under this specification shall be cited in the applicable acquisition document (see 6.2). 3.4.1.1 Requirements. Thread and twine shall conform to the requirements of the applicable document for the untreated thread and twine prior to and after mildew resistant or water repellent treatment exc
18、ept as otherwise indicated herein. 3.5 Type I, mildew resistant treated thread and twine. 3.5.1 Mildew inhibitor. The mildew inhibitor shall be class 1 or class 2 as specified (see 6.2). 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-T-3530H
19、83 9979906 0467521 T W MIL-T-3530H .J 3.5.1.1 Class 1, copper 8-quinolinolate. The copper 8-quinolinolate shall be thoroughly dispersed and so formulated that it may be applied to effect proper penetration into the thread or twine. The contractor shall certify that any petroleum fractions, oils, or
20、resins used are of a non-oxidizing type and are free of naphthenic acid and its salts. 3.5.1.1.1 Application (class 1). The inhibitor shall be applied from a solvent bath process so as to deposit within the thread or twine a minimum of 0.13 to a maximum of 0.40 percent copper as metal from copper 8-
21、quinolinolate, when tested as specified in 4.4.5, The contractor shall certify that any petroleum fractions, oils, or resins are of a non-oxidizing type and shall be free of other copper compounds or naphthenic acid and its salts. When processing, it is necessary that the thread or twine be thorough
22、ly dried, so that no residual solvent will be present. 3.5.1.2 Class 2; 2, 2methylene-bis-(4-chlorophenol). The inhibitor shall be applied from a solvent or aqueous solution, or by a two-bath method from an aqueous solution in which the sodium salt is applied in the first bath and fixed with acetic
23、acid in the second. 3.5.1.2.1 Application (class 2). The application of the inhibitor shall deposit 1.5 + 0.5 percent of 2, 2methylene-bis-(4-chlorophenol) in the thread or twine when tested as specified in 4.4.5. the thread or twine is well penetrated and shall provide a uniform deposit in the mate
24、rial. There shall be no noticable crystallization of the treatment on the thread or twine surface. The application shall be such that 3.5.1.2.2 Size bath application. The size bath for glazed or polished finished thread or twine processed to meet the requirements for type I, class 2 thread or twine
25、shall contain not less than 112 ounce of 2,2methylene-bis- (4-chlorophenol) to each gallon of size solution. The contractor shall certify to this characteristic. 3.5.2 Breaking strength (type I, classes 1 and 2). The breaking strength shall not be less than 95 percent of the minimum breaking strengt
26、h specified in the applicable document for the untreated thread or twine when tested as specified in 4.4.5. 3.5.3 Length per pound (type I, classes 1 and 2). The length per pound shall not be less than 90 percent of the minimum length per pound specified in the applicable document or the untreated t
27、hread or twine when tested as specified in 4.4.5. 3.6 Type II, class 3, Quarpel type treated thread (soft or bonded finish, as specified, see 6.7). 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-T-3530H 83 7779706 O467522 I MIL-T-3 5 3 OH 3.6
28、.1 Treatment. The type II, class 3 thread shall be treated with an approved “Quarpe.1 type“ water repellent (see 6.5 and 6.6) to meet the requirements specified below. There shall be no noticeable crystallization of the treatment on the thread surface or any noticeable wicking of the. treatment on t
29、he thread to adjacent material when sewn. 3.6.2 Vertical rise wicking, type II, class 3. 3.6.2.1 Initially. The finished treated thread shall resist the wicking of water for a period of not less than 6 hours when tested as specified in 4.4.5. 3.6.2.2 AEter 3 launderings. The finished treated thread
30、shall resist the wicking of water for a period of not less than 6 hours after 3 launderings when tested as specified in 4.4.5. 3.6.3 Breaking strength, type II, class 3. The breaking strength shall be not less than 90 percent of the minimum breaking strength in the applicable document for the untrea
31、ted thread when tested as speciEied in 4.4.5. 3.6.4 Length per pound, type II, class 3. The length per pound shall be not less than 90 percent of the minimum length per pound speciied in the applicable document for the untreated thread when tested as specified in 4.4.5. 3.7 pH, type I. The pH value
32、of the water extract of the. type I finished treated thread or twine shall be not lower than 5.5 nor higher than 8.5 when tested as specified in 4.4.5. 3.8 Nonfibrous material, type I. When a requirement exists for non-fibrous material or extractable matter in the applicable document for the untreat
33、ed thread or twine, the treated thread or twine shall be considered acceptable when the untreated thread or twine has been tested and found to comply with that requireaent. 3.9 Color. 3.9.1 Type I, classes 1 and 2. The thread or twine shall be undyed or colored as specified (see 6.2?. When undyed an
34、d mildew resistant treated tread or twine is specified, the color of the Phread or twine may deviate from the unbleached state to that degree imposed by the color of the mildew resistant agent used. When colored thread or twine is specified, the dyed thread or twine shall match the standard sample (
35、see 6.4) prior to the application of the mildew resistant treatment and the color of the finished thread or twine shall be that resulting from the application of the mildew resistant treatment, 3.9.2 Type II, class 3. The. color of the dyed and water repellent treated thread shall match the standard
36、 sample (see 6.4). 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-T-3530H 83 W 9999906 0469523 3 = MIL-T-3 530H .J . 3.9.3 Matching. The color of the treated thread or twine shall match the standard sample (see 6.4) under artificial daylight
37、having a color temperature of 7000 + 500 K and shall be a good approximation to the standard sample under incandescent lamplight at 2850 - + 100 K. 3.9.4 Colorfastness. The colorfastness requirements for the dyed thread or twine shall be as specified in the applicable end item document or as set for
38、th in the acquistion docunent (see 6.2). Unless otherwise speciEied (see 6.21, the colorfastness shall be determined on the dyed and treated thread or twine in accordance with test methods specified in the applicable untreated thread or twine document. 3.10 Workmanshie. The finished thread or twine
39、shall conform to the quality of product established by this specification. 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 a
40、nd tests) 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 specified herein, unless disapproved by the Government. The Government reserves the right
41、 to perform any of the inspections set forth in this 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 requirements of sections 3 and 5. The inspection set forth
42、in this specification shall become a part of the contractors overall inspection system or quality program. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of ensuring that all products OK supplies submitted to the Government for
43、acceptance comply with all requirements of the contract. Sampling inspection, as part of manufacturing operations, is an acceptable practice to ascertain conformance to requirenents, however, this does not authorize submission of known defective material, either indicated or actual, nor does it comm
44、it the Government to accept defective material. 4.1.2 Certificates of compliance. When certificates of compliance are submitted, the Government reserves the right to inspect such items to determine the validity of the certification. 4.2 Classification of inspections. The inspection requirements spec
45、ified herein are classified as follows: a. First article inspection (see 4.3) b. Quality conformance inspection (see 4.4) 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-3530H 83 m 9999906 0469524 5 m MIL-T-3 53 OH 4.3 First article inspectio
46、n. When a first article is required (see 3.1 and 6.2), it shall be examined for the defects specified in 4.4.2, 4.4.3 and 4.4.4. 4.4 Quality conformance inspection. Unless otherwise specified, sampling for inspection shall be performed in accordance with MIL-STD-105. 4.4.1 Component and material ins
47、pection. In accordance with 4.1, components and materials shall be inspected in accordance with all the requirements of referenced documents unless otherwise excluded, amended, modified, or qualified in this specification or applicable purchase document. 4.4.1.1 Certification. The applicable materia
48、l and application requirements listed below shall be accepted on the basis of a contractors certification of compliance with the indicated requirements: Requ i r emen t Requirement paragraph Copper 8-quinolinolate 3.5.1.1 and 3.5.1.1.1 2,2methylene-bis-(4-chlorophenol) 3.5,1.2 and 3.5.1.2.1 Size bat
49、h application Quarpel type water repellent 3.5.1.2.2 3.6.1 4.4.2 End item visual examination. The end items shall be defects listed in table I. The lot si(ze shall be expressed in xamined for he units of holders (i.e., cones, spools, or tubes as applicable). The sample unit shall be one holder of thread or twine. The inspection level shall be I and the acceptable quality level (AQL), expressed in terms of defects per hundred units, shall be 1.0 f
