DLA MIL-R-30500 B-1972 ROPE POLYESTER《聚脂绳》.pdf

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1、MIL-R-30500B 40 m 97999Ob OLOb3gO O m MIL-R- 305 OOB 31 July 1972 SUPERSEDING MIL-R-30500A 5 May 1966 MILITARY SPECIFICATION RPE , POLY ESTER This specification is approved for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope.- This specification covers polyester

2、rope for general purpose use. 1.2 Classification.- The polyester rope shall be furnished in one type in the circumferences (size) specified (see 6.2). 2. APPLICABLE DOCUMENTS * 2.1 The following documents, of the issue in effect on date of invitation for bids or request for proposal, form a part of

3、this specification to the extent speci f ied herein : SPECIFICATIONS UU-T-81 - Tags, Shipping and Stock MILITARY MIL-C-3131 - Cordage; Preparation for Delivery of STANDARDS FEDERAL FED-STD-191 - Textile, Test Methods FSC 4020 Provided by IHSNot for ResaleNo reproduction or networking permitted witho

4、ut license from IHS-,-,-MIL-R-30500B MILITARY MIL-STD-105 - Sampling Procedures and Tables for Inspection by Attributes (Copies of specifications, standards and drawings required by suppliers. in connection with specific procurement functions should be obtained from the procuring activity or as dire

5、cted by the contracting officer.) 3. REQUIREMENTS * 3.1 First article.- When specified (see 6.2), the supplier shall furnish a sample for first article inspection and approval (see 4.1.1 and 6.4). * 3.2 Government or supplier purchases.- The requirements specified in 3.8, 3.9 and 3.10 apply only to

6、rope purchased directly by the Government, All other requirements apply to rope purchased as a component for an end item by a supplier and to rope purchased directly by the Government, 3.3 Standard sample.- Dyed rope shall match the standard for shade and shall be equal to or better than the standar

7、d sample with respect to all charac- teristics for which the standard sample is referenced (see 6.3). 3.4 Materials.- The material used in the rope shall be bright, virgin, continuous filament polyester fiber of tenacity and denier to meet the requirements of this specification. * 3.5 Physical requi

8、rements.- “he rope shall be of three strands and shall conform to the requirements specified in table I when tested as specified in 4.2.5. sizes 5/8 inch to 1 inch circumference inclusive and one size of balanced 3 ply polyester yams in sizes from 1-1/8 inch circumference and up and the lay of the r

9、ope shall be right hand or “Z“ lay. Each strand shall be made of one size of one single polyester yarns in 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-30500B 40 777770b OLOb342 4 = % m U al a n mmmmmmmmmmmooooooooooo FIFINFIFIFIFIFIFIFIFI

10、00000000000 rlrlrldrlddddrlrl 0000000000000000000000 mmmooooooooooooooooooo 0000000000000000000000 0000000000000000000000 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-305OOB * 3.5.1 Elongation.- The elongation of the rope shall not exceed 35

11、 percent when tested as specified in 4.2.5. 3.5.2 Hardness.- The rope shall meet the minimum and shall not exceed the rnaximum harduess requiremnts specified in table I, when tested as specified in 4.2.5. 3.6 Finish.- No extraneous material shall be added for the purpose of weighting the rope, excee

12、d 4.0 percent when tested as specified in 4.2.5. The extractable matter of the finished rope shall not 3.7 Color.- Unless otherwise specified (see 6.2), the color of the finished rope shall be natural. be dyed to match an approved standard shade of Olive Drab No. 7 (see 6.3). 3.7.1 Colorfastness.- D

13、yed and finished rope shall Shaw fastness to When colored rope is specified the rope shall weathering equal to or better than the standard sample when tested 88 speci- fied in 4.2.5. show good fastness to weathering when tested as specified in 4.2.5. * 3.8 Identification.- Each reel (spool) of rope

14、shall have a ticket When no standard sample has been established, dyed rope shall (identification tag) or label attached to it for identification purposes. ticket shall conform to the requirements for type B, class 1, size 4 or 5 of -T-81. The ticket shall be made of not less than 15-point paper sto

15、ck and have a minimum tearing resistance of both directions (total) of 850 gram when tested as specified in -T-81. The label shall be attached in such a manner as to remain in place and be clearly legible until all rope has been removed. Ali ticket or label entries shall be legibly printed, stamped

16、or typed with water insoluble ink. information : The The ticket or label shall contain the following Stock number Item description Specification number Length and circumference (size) Contract number and date Date of manufacture (Month and Year) Suppliers name 3.8.1 Identification marker.- The manuf

17、actuter shall identify his product by inserting a kraft paper or water repellent cotton marker within one strand in all ropes larger than 1-1/8 inch circumference. completely enveloped by the cover yarns in the strand in which it is inclosed. Unless otherwise specified, the manufacturers name, year

18、of manufacture and type of fiber (POLYESTER) shall be clearly printed in block type on the marker. The printing shall not be affected upon exposure to water or mineral oil. The marker shall be 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-3

19、05008 40 W 777770b 010b344 M MIL-R-30500B 3.9 Put-up.- Unless otherwise specified, (see 6.2) the rope shall be furnished without knots or splices on non-returnable reels (spools) not larger than 6 feet in dianieter in the lengths specified in table I. Pieced lengths will be permitted, but no piece s

20、hall be less than 600 feet when measured in the relaxed condition. securely whipped, taped or heat sealed to-prevent untwisting or fraying. reels (spools) shall be wound so that each turn and layer is free from entangle- ment. The ends of all rope shall be cut off squarely and be The 3.9.1 When spec

21、ified, rope shall be put up in coils in one continuous piece without knots or splices in the minimum length specified (see 6.2). tolerance of 10 percent shall be allowed on he length per coil. all rope shall be cut off squarely and be securely whipped, taped or heat sealed to prevent untwisting or f

22、raying, turn and layer is free from entanglement. A plus The ends of The coils shall be so wound that each 3.10 Moisture content.- The misture content of the rope, as received, shall not exceed 2.0 percent when tested as specified in 4.2.5 (see 6.5). 3.11 Spliceabi1ity.- The finished rope shall be s

23、pliceable and shall not develop yam displacement or strand cockles in the splicing test specified in 4.2.5. 3.12 1Jorkmanship.- The rope shall conform to the quality and grade of product established by this specification. the applicable acceptable quality levels established by this specification. Th

24、e occurrence of defects shall not exceed 4. QUALITY ASSURANCE PROVISIONS * 4.1 Responsibility for inspection.- Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all in- spection requirements as specified herein. supplier my utilize his o

25、wn or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements. Except as othe

26、rwise specified, the The Government reserves the right to perform any of the inspections * 4.1.1 First article Inspection.- When required (see 6.2), the preproduction sample submitted in accordance with 3.1 shall be visually inspected for appear- ance and color. teristics in accordance with 4.2.5. T

27、he sample shall be tested for physical and chemical charac- 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-30500B L(0 W 7777706 0206345 T MIL-R-30SOOB * 4.1.2 Certificate of compliance.- When certificates of compliance are submitted, the Gov

28、ernment reserves the right to check test such item to determine the validity of the certification. 4.2 Inspection.- Sampling for inspection shall be performed in accordance with MIL-STD-105, except where otherwise indicated hereinafter. * 4.2.1 Component and material inspection.- In accordance with

29、4.1 above, components and materials shall be tested in accordance with all the require- nients of referenced specifications, drawings and standards unless otherwise excluded, amended, modified or qualified in this specification or applic- able purchase documents. requirements in table II and a suppl

30、iers certificate of compliance thereto shall be furnished and will be accepted for the requirements. In addition, inspection shall be performed for the TABLE 11.- Component test Characteris tic Paragraph reference Material 3.4 Yarn size 3.5 Single yarn in strand (when applicable) 3.5 Balanced plied

31、yam in strand (when applicable) 3.5 * 4.2.2 Examination of the end item for visual defects.- The defects listed in table III shall be counted regardless of their Droxindtv to each other. The sample unit shall be one reel-(spool) or coil as applicble. the length contained on each sample unit, but not

32、 less than 100 feet shall be subjected to the visual examination. The lot size for this examination shall be expressed in units of reels (spools) or coils each. The acceptable quality level (AQL) shall be 1.5 major defects and 4.0 total defects (major and minor corobined) per 100 units. Ten percent

33、of The inspection level shall be level I. TABLE 111.- Visual examination defects Classification Examine Defect Major Minor Appearance and Cut, any X workmans hip Chafed or damaged X end, bulged strand, strand knot X Kink, darting yam L/, broken or loose 6 Provided by IHSNot for ResaleNo reproduction

34、 or networking permitted without license from IHS-,-,-MIL-R-3050OB TABLE III.- Visual examination defects (contd) Classification Examine Defect Major Minor Appearance and Ends not cut off squarely workmanship Ends not securely whipped, taped or heat (cont d) sealed Splice or otherwise secured to mak

35、e a continuous length X X X Identification Omitted, incorrect, or illegible X Insecurely attached or not as specified X Color Not as specified Resists and/or spotty dyeing Specific shade not within established Uneven tolerances X X X X Cleanness Spot, or stain, clearly noticeable - 2/ X - i/ Darting

36、 yarn is an internal yarn which projects through the cover of the strand. - 2/ At normal inspection distance (approximately 3 feet), 4.2.3 Examination for length and winding.- The sample unit for this examina- tion shall be one reel (spool) or coil. S-3 and the acceptable quality level shall be 4.0

37、percent defective. sample size shall be code letter “E“ (sample size 13, acceptance number i). The lot size shall be the number of units in the inspection lot. as listed in 4.2.3.1 and 4.2.3.2. The required length of the spool (reel) or coil (see table I and 3.9.1) shall be determined using the foll

38、owing formula: The inspection level shall be level The minimum Defects shall be W x L = Length per holder in feet Where: W is net weight of the rope in 0.1 pounds L is the lot average of the weight-length relationship (length/pound) as determined in 4.2.5 4.2.3.1 Defects with regard to length shall

39、be considered to exist if any of the following are determined during inspection: 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-305008 LJO M 9999906 OLOb347 3 W MIL-R-30500B a. Length of spool (reel) less than specified. b. Length of coil le

40、ss than or more than length specified (including permitted tolerances). c. Length of mit less than marked on ticket. d. Rope not in continuous length when specified (see 3.9.1). e. Any piece on reels (spools) less than 600 feet in length. 4.2.3.2 Defects with regard to winding shall be considered to

41、 exist if any of the following are determined during inspection: a. Improperly or not firmly wound resulting in kinks, knots, entangling or slippage during unwinding or otherwise affecting free unhampered unwinding of rope, b. Knot or splice or otherwise joining of ends to make a contin- uous length

42、. * 4.2.4 Examination of preparation for delivery requirements.- An exdna- tion shall be made to determine that the packaging, packing and marking comply with the section 5 requirements of this specification. nation shall be in accordance with the provisions of MIL-C-3131, except that the inspection

43、 level shall be S-2 and the acceptable quality level (AQL) shall be 2.5 defects per 100 units. The exaini- * 4.2.5 Testing of the end item.- The methods of testing specified in FED-STD-191, wherever applicable and as listed in table V shall be followed. When data in the “Number of determinations“ an

44、d “Results reported as“ colunais are not specified in the table, they shall be as required by the referenced test method, the average of the determinations made on a sample unit for test purposes as Specified in the applicable test methods. ance with table IV. coil of rope. coil. ing the final resul

45、t. to meet any requirement. Tests to determine compliance with specification requirements, including quantity of delivery, may be made under prevailing atmospheric conditions. material which has reached equilibrium under Standard Conditions as defined in FED-STD-191. The physical and chemical values

46、 specified in section 3 apply to The sample size shall be in accord- The lot size shall be expressed in units of one reel (spool) or The lot shall be unacceptable if one or more units fail The sample unit for testing shall be one reel (spool) or All test reports shall contain the individual values u

47、tilized in express- In cases of dispute, tests shall be made upon 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-R-30500B LI0 W 777770b OLOb348 5 W MIL-R-30500B TABLE IV,- Sampling for tests Nunher of Reels (spools) or coils in lot Number of s

48、amples 800 or less 2 801 up to and including 22,000 3 22,001 and over 5 TABLE V.- Test methods Requirement Test Characteris tic reference method Number of strands 3.5 Visual L/ Lay of rope 3.5 visual L/ Circumference 3.5 6003 Length per pound 3.5 6004 6015 2/ Breaking strength 3.5 - Elongation 3.5,1

49、 6015 2/ Hardness Extractable matter 3.5.2 3.6 60 20 2611 2/ Color (shade) matching 3.7 4.2.5.1 L/ Colorfastness to weathering 3.7,l 5671 i/ Identification marker 3.8.1 Visual z/ Moisture content . 3.10 2600 Spliceabili ty 3.11 4.2.5.2 &/ - 1/ One determination per sample unit shall be made and the results shall be reported as pass or fail. 9 Provided by IHSNot for ResaleNo reproduction or networking permitted w