1、Designation: F 1099M 98 (Reapproved 2005)An American National StandardStandard Specification forRat Guards, Ships (Metric)1This standard is issued under the fixed designation F 1099M; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision,
2、 the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the materials, dimensions, andassembly of steel and aluminum rat guards.1.2 Ra
3、t guards are intended to prevent rats from boardingships by way of mooring lines.1.3 The values stated in SI units are to be regarded as thestandard.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this s
4、tandard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2A 525M Specification for General Requirements for SteelSheet, Zinc-Coated (Galvanized) By the Hot-Dip Process(Metric)B 209M
5、 Specification for Aluminum and Aluminum-AlloySheet and Plate (Metric)3. Classification3.1 Rat guards shall be classified into three types as follows:3.1.1 Type IMultiple-line (doubling up), self-adjustable,accommodating the mooring line combinations listed in Table1.3.1.2 Type IISingle-line, self-a
6、djustable, accommodatinga single 5-mm wire to a 76-mm-diameter mooring line.3.1.3 Type IIIConical shape with tapered, slotted sleeve.Type III rat guards shall be of the following sizes: (a)75mm,(b) 125 mm, and (c) 200 mm.3.2 Types I and II rat guards (see 3.1.1 and 3.1.2) aredesigned to be installed
7、 from the deck or pier without a personphysically coming in contact with the mooring lines or hawser,by lowering and positioning the guards away from the shipshull with two ropes that are permanently attached as guide andtie ropes (see Fig. 1).3.3 Type III rat guards (see 3.1.3) require a person to
8、contactthe mooring line to pull the two halves of the conical guardaround the mooring line, wrap the slotted sleeves (see Fig. 2)to the line, and physically close any opening between themooring line and the circular opening at the center of theguard.4. Ordering Information4.1 Orders for rat guards u
9、nder this specification shallinclude the following information:4.1.1 ASTM designation.4.1.2 Type required (see 3.1):4.1.2.1 If Type III, material required (see 5.1.3).4.1.2.2 If Type III, size required (see 3.1.3).4.1.3 Quantity required.4.1.4 Optional requirements, if any (see SupplementaryRequirem
10、ents S1 through S3).5. Materials and Manufacture5.1 Materials:5.1.1 Type I rat guards shall be made of aluminum-alloysheet metal conforming to the requirements of SpecificationB 209M, 6061-T6, or 5052-H32.5.1.2 Type II rat guards shall be made of galvanized sheetsteel conforming to the requirements
11、of Specification A 525M,Coating Designation 450. The coating shall be a minimum of450 g/m2in accordance with the triple-spot test of Specifica-tion A 525M.5.1.3 Type III rat guards shall be made of either of thematerials specified in 5.1.1 and 5.1.2 (see 4.1.2.1).5.2 Manufacture:5.2.1 Types I and II
12、 rat guards shall be provided with thefollowing:1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct responsibility of Subcommittee F25.07 onGeneral Requirements.Current edition approved Jan. 1, 2005. Published January 2005. Originallyap
13、proved in 1987. Last previous edition approved in 1998 as F 1099M 98.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM
14、website.TABLE 1 Mooring Line Combinations for Type I Rat GuardsMooring Lines Diameter, mm Number of Lines5 wire as required25-33 line 3 or more41-50 line 350-82 line 21Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.2.1.1 Hinge Bolt
15、An M 7 3 1 hexagon head bolt 20 mmlong with elastic stop nut and washer. All parts shall becorrosion-resistant steel.5.2.1.2 Guide and Tie RopePolyester or nylon of goodcommercial quality, 6- or 9-mm diameter by 6 m long.5.2.1.3 GrommetGood commercial quality brass and ofsize suitable for the guide
16、and tie ropes.5.2.2 Type III Rat GuardsType III rat guards shall consistof two half disks and two half tapered sleeves. Both halvesshall be identical except one half shall be provided with a “U”shaped sleeve.5.2.2.1 The hinge bolt provided with each rat guard shallconsist of a commercial M 7 3 1 hex
17、agon head bolt,20-mm-long nut, and washer. All parts shall be corrosion-resistant steel.5.2.2.2 The galvanized steel or aluminum sleeve shall beslotted as specified in Table 2 and Fig. 2, so that when the ratguard is in place, it may be drawn tightly against the hawser,with lashing. The formed sleev
18、es shall be tapered to permitnesting of the rat guards, for compact shipping.5.2.2.3 When the rat guard is made of galvanized steel, thesleeve shall be riveted and soldered to the disk with tinnerstype rivets, No. 3, 4-mm diameter for each half sleeve. TheFIG. 1 Types I and II Rat Guard Configuratio
19、nFIG. 2 Assembly of Type III Rat GuardsTABLE 2 Dimensions for Type III Rat GuardsSizeDimensions (seeFig. 2), mmNumber ofProngs inCompleteSleeve(See5.2.2.2)Thickness of Disk, Sleeve,and Guide, mmABSteel, GalvanizedSheetAluminumAlloy Sheet75 75 1000 6 1.4 1.6125 125 1300 10 1.4 1.6200 200 1300 16 1.4
20、1.6F 1099M 98 (2005)2number of rivets shall be the same as the number of prongs.Soldering of the half sleeve flange to the half disk shall becontinuous, inside and outside (see Fig. 2).5.2.2.4 When the rat guard is made of aluminum alloysheets, the sleeve shall be spot welded and riveted to the disk
21、.Spacing of spot welds shall not exceed 50 mm with a minimumof four spot welds provided on each half of the rat guard. Therivets shall be equivalent to No. 3, 4-mm diameter. Five rivetsshall be installed in each half of the guard. Rivets shall belocated equidistant, between adjacent spot welds (see
22、Fig. 2).6. Dimensions and Permissible Variations6.1 Dimensions of Type I rat guards 66 mm shall be asfollows:6.1.1 Overall height shall be 1000 mm.6.1.2 Overall thickness shall be 40 mm maximum.6.2 Dimensions of Type II rat guards 66 mm shall be asfollows:6.2.1 Overall length shall be 1000 mm.6.2.2
23、Overall thickness shall be 40 mm maximum.6.3 Dimensions of Type III rat guards shall be as specifiedin Table 2 and Fig. 2.7. Workmanship, Finish, and Appearance7.1 Workmanship shall be of the highest quality throughoutand in conformance with the accepted commercial standardpractice for this type of
24、equipment.7.2 Guards shall be free of exposed burrs, raw or sharpedges, or other imperfections that may be injurious to person-nel or lines.8. Product Marking8.1 Each rat guard shall be stenciled with black paint orstamped with the ASTM standard designation and size inletters and numbers approximate
25、ly 25 mm high.8.2 The manufacturer may stamp his brand name or logo.9. Packaging and Package Marking9.1 Unless otherwise specified in the contract or purchaseorder (see 4.1.4), packaging shall conform to manufacturersnormal commercial practice, and in such a manner that willensure acceptance by comm
26、on carrier and afford protectionagainst physical and mechanical damage during shipment.Shipping containers shall conform to carrier regulations asapplicable to the mode of transportation.10. Keywords10.1 mooring lines; ratguards; shipsSUPPLEMENTARY REQUIREMENTSThe following supplementary requirement
27、s shall apply only when specified by the purchaser in thecontract or order (see 4.1.4).S1. Referenced DocumentsS1.1 The following documents are applicable only when therequirements of S3 are specified in the contract or purchaseorder (see 4.1.4).S1.1.1 Military Standards:MIL-STD-129 Standard for Mar
28、king for Shipment andStorage3MIL-C-52950 Specification for Crates, Wood, Open, andCovered3S1.1.2 Federal Standards:PPP-B-601 Specification for Boxes, Wood, Cleated-Plywood4PPP-B-621 Specification for Boxes, Wood, Nailed and LockCorner4PPP-T-97 Specification for Tape, Packaging/Individual,Filament Re
29、inforced4S1.1.3 Offcial Classification Committee Standard:Uniform Freight Classification Ratings, Rules, and Regula-tions5S1.1.4 National Motor Freight Traffc Association Stan-dard:National Motor Freight Classification6S2. Quality Assurance ProvisionsS2.1 Sampling:S2.1.1 Rat guards of the same type
30、and size offered fordelivery at one time shall be considered a lot.S2.1.2 A random sample of rat guards shall be selected inaccordance with Table S1.1 for the examination specified inS2.2 and the trial assembly specified in S2.3.3Available from Standardization Documents, Order Desk, Bldg. 4, Section
31、 D,700 Robbins Ave., Philadelphia, PA 19111-5098.4Available from U.S. Government Printing Office Superintendent of Documents,732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401.5Available from Uniform Classification Committee Agent, Tariff PublicationOfficer, Room 1106, 222 S. Riverside Pla
32、za, Chicago, IL 60606.6Available from National Motor Freight Traffic Association, 2200 Mill Rd.,Alexandria, VA 22302.TABLE S1.1 Sampling for Examination and Trial AssemblyNumber of RatGuards in LotNumber of RatGuards in SampleAcceptanceNumber (Defective)Rejection Number(Defective)25 and under 5 0 12
33、6 to 40 7 0 141 to 65 10 0 166 to 110 15 0 1111 to 300 25 1 2301 to 800 35 1 2F 1099M 98 (2005)3S2.1.2.1 Any rat guard in the sample containing one or moredefects shall not be offered for delivery, and if the number ofdefective rat guards in any sample exceeds the acceptancenumber specified in Table
34、 S1.1, it shall be cause for rejectionof the lot.S2.1.2.2 Table S1.1 shall be applied separately to major andminor defects (see Table S2.1) for purpose of lot acceptanceand rejection.S2.2 ExaminationRat guards selected in accordance withS2.1.2 shall be examined as specified in Table S2.1 andmeasured
35、 to verify conformance to the requirements of thisspecification.S2.3 Trial AssemblyRat guards selected in accordancewith S2.1.2 shall be assembled in the specified dimensionalsize to verify conformance with the functional requirements ofthis specification.S2.4 Inspection of PackagingSample packages
36、andpacks, and the inspection of the preservation-packaging, pack-ing, and product marking for shipment and storage shall be inaccordance with the requirements of Sections 8, 9, and S3, andthe documents specified therein.S3. Packaging and Package MarkingS3.1 Preservation (Type III only)Preservation s
37、hall beLevel A or C, as specified (see 4.1.4).S3.1.1 Level A:S3.1.1.1 Preservatives shall not be used.S3.1.1.2 Eight complete rat guards shall be nested togetherby disassembling each guard and securing the two halvestogether at the funnel with filament reinforced pressure sensi-tive tape conforming
38、to PPP-T-97. The hinge bolt, nut, andwasher for each guard shall be secured to one half of the guardto prevent loss or damage.S3.1.2 Level CRat guards, assembled or disassembled atthe contractors option, shall be unit packed to afford protec-tion against damage during shipment from the supply source
39、 tothe first using activity for immediate use. The contractorsretail or wholesale preservation methods may be used whensuch meets the requirements of this level.S3.2 PackingPacking shall be Level A, B, or C, asspecified (see 4.1.4).S3.2.1 Level AEight rat guards (for Type III, eight disas-sembled ra
40、t guards) unit packed as specified in S3.1 shall bepacked in wood cleated plywood, nailed wood, or open woodcrates conforming to PPP-B-601 overseas type, PPP-B-621class 2, or MIL-C-52950 boxes or crates respectively. Selectionof the box or crate shall be at the option of the contractor.Protection sh
41、all be provided by means of blocking, bracing, orcushioning, or other media to prevent damage during handling,shipment, and storage.S3.2.2 Level BEight rat guards (for Type III, eight disas-sembled rat guards) unit packed as specified in S3.1 shall bepacked as specified in Level A, except that conta
42、iners shallconform to the domestic class or grade of the type used.S3.2.3 Level CPacking shall be accomplished in a mannerthat will ensure acceptance by common carrier at the lowestrate and will afford protection against physical or mechanicaldamage during direct shipment from the supply source to t
43、heusing activity for early installation. The shipping containers ormethod of packing shall conform to the Uniform FreightClassification Rules, National Motor Freight Classification, orother carrier regulations, as applicable to the mode of trans-portation.S3.3 Product MarkingIn addition to any speci
44、al markingrequired (see 4.1.4), unit packs and shipping containers shall bemarked in accordance with MIL-STD-129. Unit packs in opencrates shall be marked with waterproofed tags.S3.3.1 When specified (see 4.1.4), manufacturers shall as-sign a part number containing a five digit numerical manufac-tur
45、ers code as assigned by the U.S. Government under theFederal Cataloging Program.S3.3.2 When specified (see 4.1.4), the marking specified in8.1 shall include a National Stock Number.NOTE The packaging requirements specified apply only for directgovernment acquisition.TABLE S2.1 Classification of Defe
46、cts (Applicable to All Types ofRat Guards, Unless Otherwise Specified)Categories DefectsCritical: None definedMajor:101 At trial assembly (see S2.3) guard does not fit properly overspecified hawser sizes.102 Guard does not maintain a secure and correct position whenlashed to the hawser (see Fig. 2).
47、103 Thickness of material not as specified (see Section 6).104 Sleeves not tapered to allow for nesting closely for shipment,Type III only (see 5.2.2.2).105 Sleeve or guide not properly assembled as specified in 5.2.1and Fig. 1 or 5.2.2 and Fig. 2 as applicable.106 Rat guard is warped.107 Galvanizin
48、g is less than 450 g/m2for Types II and III rat guards(see 5.1.2 and 5.1.3).Minor:201 Dimensions do not conform to 6.1, 6.2, and 6.3.202 Bolt, nut, and washer not as specified in 5.2.1.1 and 5.2.2.1.203 Outside edges sharp or inside of rat guard rough.204 Galvanizing not uniform.F 1099M 98 (2005)4AS
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