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Metal Machining
Non Productive Time in Production Cost Formulas
Non Productive Time is the total time wasted in setting up the machine or workpiece for a particular process. And is denoted by NPT. Non Productive Time is usually measured using the Minute for Time. Note that the value of Non Productive Time is always positive.
Production Cost formulas that make use of Non Productive Time
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Total Machining and Operating Costs using Average Production Cost
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FAQ
What is the Non Productive Time?
Non Productive Time is the total time wasted in setting up the machine or workpiece for a particular process. Non Productive Time is usually measured using the Minute for Time. Note that the value of Non Productive Time is always positive.
Can the Non Productive Time be negative?
No, the Non Productive Time, measured in Time cannot be negative.
What unit is used to measure Non Productive Time?
Non Productive Time is usually measured using the Minute[min] for Time. Second[min], Millisecond[min], Microsecond[min] are the few other units in which Non Productive Time can be measured.
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