Question on Amount of Flexibility with Standards

[JENGA4]

Hello,

I'm new to drafting and am developing some drawing templates for rack elevation diagrams. This may be a dumb question, but I was curious if some flexibility is generally allowed in following the ASME minimum standards if the standards don't make sense with the drawings.

For example, ASME Y14.34M states that a column for Quantity Required is mandatory on the Parts List, but I'm building our parts list for each row to correspond to a rack U elevation, so qty will always be 1 and it won't be helpful to have a column for quantity. Would appreciate any feedback from engineers who have been in the industry longer and have a better understanding of applying standards.

Thanks!
Jenga4

 

[DriveMeNuts]

I've never worked for a company or ever seen a drawing which has complied with a drawing standard.
The quantity of 1 for all items can bentioned as a note somewhere close to the table.

 

[JENGA4]

@DriveMeNuts

Thanks for the feedback! Thought that might be the case.

 

[Gr8blu]

If the drawing is a PART drawing (which means everything on the page is contained in one piece of one material), then quantities are often omitted. This is because you're ordering "by the drawing" - which means the purchase order will indicate the number of discrete parts as "15 of drawing XYZ".

If the drawing is an ASSEMBLY drawing where multiple parts are combined to make something more complex, the quantity of a given component can be omitted provided that: 1) there will never be a need to possibly change a subcomponent to something else (such as using stainless hardware instead of zinc plated), and 2) there will never be more than one assembly on the drawing. Note that even where 1) and 2) are not in force, you can choose to omit quantities - but it will make your life a lot harder after the revisions and/or additions start rolling in.

Converting energy to motion for more than half a century

 

[ewh]

You are free to document any exceptions to the standards you follow if/when they don't apply to your situation without being in violation of those standards. Documentation is the key.

"Know the rules well, so you can break them effectively."
-Dalai Lama XIV

 

[JENGA4]

Thanks for the feedback - that helps.