ASME Y14.36-2018 pdf free download.Surface Texture Symbols Engineering Product Definition and Related Documentation Practices
1.1 Scope This Standard establishes methods to designate surface texture controls. Itincludes symbolicand textual methods for specifying roughness, waviness, and other surface texture information on drawings, in specifications, or in other documents.
1.2 ASME Y14 Series Conventions Theconventionsinparas.
1.2.1 through1.2.9 areusedin this and other ASME Y14 Standards.
1.2.1 Mandatory, Recommended, Guidance, and Optional Words (a) The word “shall” establishes a requirement.
(b) The word “will” establishes a declaration of purpose on the part of the design activity.
(c) The word “should” establishes a recommended practice.
(d) The word “may” establishes an allowed practice.
(e) The words “typical,” “example,” or“forreference” or the Latin abbreviation “e.g.” indicates suggestions given for guidance only.
(f) The word “or” used in conjunction with a require- ment or a recommended practice indicates that there are two or more options for complying with the stated requirement or practice.
(g) The phrase “unless otherwise specified” or “UOS” shallbeusedto indicateadefaultrequirement. Thephrase is used when the default is a generally applied require- ment, and an exception maybe provided byanotherdocu- ment or requirement.
1.2.2 Cross-Reference of Standards. Cross-reference of standards in text with or without a date following the standard designator shall be interpreted as follows:
(a) Reference to other ASME Y14 standards in the text withoutadatefollowingthestandarddesignatorindicates that the issue ofthe standard identified in the References section shall be used to meet the requirement.
(b) Reference to other ASME Y14 standards in the text with a date following the standard designator indicates that only that issue of the standard shall be used to meet the requirement.
1.2.3 Invocation of Referenced Standards. The following examples define the invocation of a standard when specified in the References section and referenced in the text of this Standard:
(a) When a referencedstandard is cited in the textwith no limitations to a specific subject or paragraph(s) ofthe standard, the entire standard is invoked. For example, “Dimensioning and tolerancing shall be in accordance with ASME Y14.5” is invoking the complete standard because the subject of the standard is dimensioning and tolerancing, and no specific subject or paragraph(s) within the standard are invoked.
(b) When a referenced standard is cited in the textwith limitations to a specific subject or paragraph(s) of the standard, only the paragraph(s) on that subject is invoked. For example, “Assign part or identifying numbers in accordance with ASME Y14.100” is invoking only the paragraph(s) on part or identifying numbers because the subject of the standard is engineering drawing practices, and part or identifying numbers is a specific subject within the standard.
(c) When a referenced standard is cited in the text without an invoking statement such as “in accordance with,” the standard is invoked for guidance only. For example, “For gauging principles, see ASME Y14.43” is only for guidance, and no portion of the standard is invoked.
1.2.4 Parentheses Following a Definition. When a definition is followed by a standard referenced in paren- theses, the standard referenced in parentheses is the source for the definition.
1.2.5 Notes. Notes depicted in this Standard in all uppercase letters are intended to reflect actual drawing entries. Notes depicted in initial uppercase or lowercase letters are to be considered supporting data to the contents of this Standard and are not intended for literal entry on drawings. A statement requiring the addition ofa note with the qualifier “such as” is a require- menttoaddanote,andthecontentofthenoteisallowedto vary to suit the application.
1.2.6 Acronyms and Abbreviations. Acronyms and abbreviations are spelled out the first time used in this Standard followed by the acronym or abbreviation in pa- rentheses. The acronym is used thereafter throughoutthe text. 1.2.7 Units. The International System of Units (SI) is featured in this Standard. It should be understood that U.S. Customary units could equally have been used without prejudice to the principles established.ASME Y14.36 pdf download.ASME Y14.36-2018 pdf free download
