1、Designation: F906 85 (Reapproved 2014) An American National StandardStandard Specification forLetters and Numerals for Ships1This standard is issued under the fixed designation F906; the number immediately following the designation indicates the year of originaladoption or, in the case of revision,
2、the year of last revision. A number in parentheses indicates the year of last reapproval. A superscriptepsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope1.1 This specification s
3、pecifies shape, size, spacing, andshading of letters and numerals to be used aboard ship.1.2 Characters are of Five Types:1.2.1 Type 1Plain letters and numerals (16 units).1.2.2 Type 2Block letters and numerals (12 units).1.2.3 Type 3Type 2 characters with shading (shading1unit).1.2.4 Type 4Block le
4、tters (10 units) and numerals (12units).1.2.5 Type 5Type 4 characters with shading (shading1unit).1.3 This specification does not give location or size ofvarious shipboard markings incorporating letters and numerals.2. Ordering Information2.1 When ordering letters and numerals in accordance withthis
5、 specification, it is necessary to state the ASTM designationand the type and height of the character.3. General Requirements3.1 Characters are designed using the grid method whichallows the size of the character to be changed proportionatelyas required.3.1.1 Character Stroke (thickness 2 units).3.1
6、.2 Character Width:3.1.2.1 Type 1, Plain Characters12 in accordance withFig. 1 unless otherwise noted.3.1.2.2 Type 2, Block Characters8 units in accordancewith Fig. 2 unless otherwise noted.3.1.2.3 Type 3, Block Characters with Shadingsame asType 2 plus 1 unit for shading in accordance with Fig. 3.3
7、.1.2.4 Type 4, Block Characters, Letterswidth varies.Numerals8 units.3.1.2.5 Type 5, Block Characters with Shadingsame asType 4 plus 1 unit for shading.3.2 Sizing of the Character:3.2.1 Type 1space characters in accordance with Table 1.3.2.2 Type 2space characters in accordance with Table 1.3.2.3 Ty
8、pe 3space characters in accordance with Table 1with 1 unit added to each value for shading.3.2.4 Type 4space letters in accordance with Fig. 4;spacing shall be equal to the space following the letter.Numerals shall be spaced in accordance with Table 1.3.2.5 Type 5space letters in accordance with Fig
9、. 5;spacing shall be equal to the space following the letter.Numerals shall be spaced in accordance with Table 1 with 1unit added to each value for shading.3.3 Spacing Between Words, After Punctuation, or BetweenSentences:3.3.1 The space between words, after a comma, and after aperiod (as after init
10、ials) shall be in accordance with Table 1.3.3.2 The space between sentences shall be in accordancewith Table 1.3.3.3 The space between a letter and a comma or period (forany use) shall be 2 units.3.3.4 The space between lines shall be equal to one half theheight of the tallest letter.4. Keywords4.1
11、block characters; block letters; block numerals; letters;marine; numerals; plain letters; plain numerals; shading; ship;ship letters; ship markings; ship numerals1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct responsibility of Subc
12、ommittee F25.07 onGeneral Requirements.Current edition approved March 1, 2014. Published March 2014. Originallyapproved in 1984. Last previous edition approved in 2007 as F906 85 (2007).DOI: 10.1520/F0906-85R14.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 1
13、9428-2959. United States1TABLE 1 Spacing Between Letters and NumeralsAUnitsLettersandNumerals4334 312 3212 2134 112 11214 14 12 1 114 112A*+Z7A,X J 4 V,W,Y TB,D,O,Q,S3,5,8*+ A,VW,X,Z7J,T,Y4C,E,R * + A,V,W,X,Z7J,T,Y4F*X7T,W,Y A4JG6*+A,VW,X,Z7J,T,Y4H,I,M,N,U1,9*+X,Z7J,T,Y4J * + A,V,W,X,Z7J,T,Y4K * + A
14、,V,W,X,Z7J,T,Y4L*Z7A,X 4 V,W T,YP * + V,W,X,Z7T,Y4AJT * + V,W,X,Z7T,Y4AJV,W * + V,W,X,Z7T,Y4AJX * + A,V,W,X,Z7J,T,Y4Y7*+V,WX,Z7T,Y4AJZ2*+ A,VWX,Z7J,T,Y4Spacing Between Words and After PunctuationType 1 18 1734 1712 1714 17 1634Types2514 1334 1312 1314 13 1234Spacing Between SentencesType 1 22 2134 2
15、112 2114 21 2034Types2518 1734 1712 1714 17 1634AKey:*means space for: B,D,E,F,H,I,K,L,M,N,P,R,U 1,3,8 (also used for punctuation and sentence spacing).+means space for: C,G,O,Q,S 0,2,5,6,9.indicates that a portion of a letter enters the area of the next letter.Character Spacing:Select a character f
16、rom the vertical column, read across locating the next character, read up to find the correct spacing.Example:If the letter “K” is followed by the letter “A” the spacing is 1 unit.If the letter “F” is followed by the letter “H” the spacing is 2 units.Punctuation and Sentence Spacing:Locate in column
17、 of table the last character of word, read across locating (*), drop vertically down to the appropriate row and read spacing.Example:If the first word was “vessel,” the spacing to the first letter of the next word is 1234 units.F906 85 (2014)2NOTE 1Height: Letters16 UnitsNumerals16 UnitsFIG. 1 Type
18、1Plain Letters and NumeralsNOTE 1Height: Letters12 UnitsNumerals12 UnitsFIG. 2 Type 2Block Letters and NumeralsF906 85 (2014)3NOTE 1Shading 1 Unit WideFIG. 3 Type 3Type 2 Characters with ShadingNOTE 1Height: Letters10 UnitsNumerals12 UnitsFIG. 4 Type 4Block Letters and NumeralsF906 85 (2014)4ASTM In
19、ternational takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entire
20、ly their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand s
21、hould be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on S
22、tandards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 6
23、10-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).NOTE 1Shading 1 Unit Wide.FIG. 5 Type 5Type 4 Characters with ShadingF906 85 (2014)5
