1、Designation: F 906 85 (Reapproved 2007)An American National StandardStandard Specification forLetters and Numerals for Ships1This standard is issued under the fixed designation F 906; 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.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This specification spec
3、ifies 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 lette
4、rs (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 sp
5、ecification, it is necessary to state theASTM 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 (thickness2 units).3.1.2 Ch
6、aracter 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. 3.3.1.2.
7、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 Type 3s
8、pace 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. 5;s
9、pacing 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 initials)
10、 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 block
11、 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 Subcommit
12、tee F25.07 onGeneral Requirements.Current edition approved Dec. 1, 2007. Published January 2008. Originallyapproved in 1984. Last previous edition approved in 2003 as F906 85 (2003).1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.TAB
13、LE 1 Spacing Between Letters and NumeralsAUnitsLettersandNumerals4334 3 3 2 2 134 1 1 D D D1 D1 D1A*+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*+XZ7T,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,V,W,X,Z7J,T,Y4L*Z7A,X 4 V,W T,YP * +
14、 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 17 17 17 1634Types2514 1334 13 13 13 1234Spacing Between SentencesType 1 22 2134 21 21 21 2034Types2518 1734 17 17 17 1634AKey:
15、*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.Dindicates that a portion of a letter enters the area of the next letter.Character Spacing:Select a character from the vertical column, read across locating the ne
16、xt 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 of table the last character of word, read across lo
17、cating (*), 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 12n|Punits.F 906 85 (2007)2NOTEHeight: Letters16 UnitsNumerals16 UnitsFIG. 1 Type 1Plain Letters and NumeralsNOTEHeight: Letters12 Unit
18、sNumerals12 UnitsFIG. 2 Type 2Block Letters and NumeralsF 906 85 (2007)3NOTEShading 1 Unit WideFIG. 3 Type 3Type 2 Characters with ShadingNOTEHeight: Letters10 UnitsNumerals12 UnitsFIG. 4 Type 4Block Letters and NumeralsF 906 85 (2007)4NOTEShading 1 Unit Wide.FIG. 5 Type 5Type 4 Characters with Shad
19、ingASTM International 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,
20、are entirely 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 stan
21、dardsand should 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 Comm
22、ittee on Standards, 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 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).F 906 85 (2007)5
