About TSG 21-2016 Safety Technical Inspection Regulations for Fixed Pressure Vessels
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TSG 21-2016 Safety Technical Inspection Regulations for Stationary Pressure Vessels General Principles 1.3 Scope of Application Note 1-3: Volume refers to the geometric volume of the pressure vessel, which is calculated from the dimensions marked on the design drawing (without considering manufacturing tolerances) and is rounded. It is generally necessary to deduct the volume of internal parts permanently connected to the interior of the pressure vessel. What are the rounding rules here? Is it explained in this standard or in other standards?
Rounding up I know rounding to whole numbers? Or how many decimal places?
The author has no design experience. For example, if the designed and calculated wall thickness is 10.4, it is sufficient, but if there are no 10.5 or 11 plates on the market, then go up to 12 mm. This is called rounding. That's a whole number, not a decimal. Then check and calculate based on 12mm. The regulation here is to determine V based on the actual diameter of the equipment, which has pragmatic significance.
The fourth floor has good eyesight, I am indeed a newbie. But what I am talking about is how to round the container. What if a 0.5m3 container is rounded to 1m3?
There are typos on it. It’s volume, not container.
No more than two decimal places. For example, 100 cubic meters, there is no need to include decimals. ； If there is only 0.52 cubic, it is not appropriate if you have to round it to 1 cubic.
Is there any standard basis for your statement?
No corresponding detailed fixation was found in the standard.
Then you can understand that this sentence in the standard is nonsense.
This post was last edited by bluishice on 2022-1-26 08:19. No one complained. Is the standard name written wrong? Rounding means rounding to an integer. Generally speaking, it points upward to round. Those that need to be rounded are generally when the numbers are relatively large, such as 132.5624. If rounded to 133 0.0323, there is no need to round. Generally, 2-4 decimal places are retained.