ASME Y14-24 pdf download Types and Applications of Engineering Drawings Engineering Drawing and Related Documentation Practices
1.2.10 Unless Otherwise Specified (UOS).
The phrase “unless otherwise specified” or the acronym “UOS” is used to indicate a default requirement. The phrase is used when default is a generally applied requirement and the exception can be clarified by pro- viding a reference to another document or requirement.
1.3 Preparation Methods and Formats
1.3.1 Preparation Methods. Preparation methods (e.g., manual, digital, photographic, and cut and paste) and methods ofdepiction (e.g., pictorial, textual, or com- binations thereof) are concerns of this Standard only to the extent that the drawing satisfies its intended purpose.
Use of ASME Y14.41 practices to prepare data sets does not preclude the use of this Standard. Data sets prepared with drawing graphic sheets shall meet the specific requirements for each drawing type defined in this Standard. Data sets prepared with no drawing graphic sheets shall meet the intent of the specific requirements for each drawing type defined in this Standard byusingthe practicesdefined inASME Y14.41.
1.3.2 Formats. Formats (e.g., manual and digital, single or multisheet, drawing in book form, and com- puter printout) are concerns of this Standard only to the extent that the drawing satisfies its intended purpose. Formats shall be in accordance with ASME Y14.1. 1.4 Structure of Drawing Text Textual information on drawings may be in numbered note form or in a format that uses section headings, numbered paragraphs, and subparagraphs grouped according to subject matter. See figures for examples.
1.5 Application Guidelines Application guidelines are intended to aid in under- standing the conditions under which specific types of drawings may be prepared. It is not intended that any application guideline imply that preparation of specific drawing types is always required.
1.6 Drawing Content Requirements may be satisfied by direct delineation on the drawing or by reference to other documents that are a part of the drawing package. Such documents are invoked in individual drawings either by reference in the general notes, in the using assembly parts list, or both. Parts lists shall be in accordance with ASME Y14.34.
1.7 Tabulation Any drawing type may be tabulated, as applicable, to delineate similar items that as a group have some common characteristics and some variable features.
1.7.1 Application Guidelines. Tabulated drawings are prepared to avoid preparation of individual draw- ings for each similar item tabulated. Each item included inthe tabulation shall have a PartorIdentifying Number (PIN) assigned.
1.7.2 Requirements. The differences, i.e., the variables, between the items defined by the drawing are tabulated. The common characteristics are delineated or stated once. Each individual item is identified by a PIN. Normally, a single pictorial representation is shown.