What is DHU? How to Measure DHU In A Manufacturing Unit?
What is DHU? How to Measure DHU In A Manufacturing Unit?
In earlier post, we have learned different types of major defects of sweater factories. There is no alternative achieving quality of a product. So to maintain standard quality, set check post in different areas-
- To detect defects at the source
- Stooping defective garments passing to the next process
- To find who are producing defects
- Solve there instantly & get good quality products.
In general, check start in a sweater factories from raw materials stage (yarn stage) to packed garments to stop passing defective garments. Check points are like below,
- Yarn quality
- Knitted panel quality
- Linking quality
- Trims and Accessories quality
- Finishing quality
- Packing quality
What is DHU?
DHU stands for Defect Per Hundred Units. That means total number of defects found per hundred pieces check is called DHU. Also it is treated as DPHU ( Defect Per Hundred Units ).
From every checkpoints, quality checker detect defects & record them in a established sheet provided by the QA dept. In here, checker will record the total number of defects found in a day, total defective garments & total check quantities of that day.
Click to learn more about defect & defective garments.
How to Measure DHU In A Manufacturing Unit?
To measure DHU of any process/checkpoint, following information need those are recorded by quality checker.
- Total number of defects
- Total check quantity
Now we can calculate DHU by using following equation.
DHU = (Total defects found in a day * 100)/ Total inspected pieces
For example: A quality checker has checked 800 pcs sweater / garments in a day. He /she has found 135 pcs defects from 70 defective garments in a day , then what is the DHU of that process?
So DHU = (135*100)/800
=16.87
 |
| Template of Measuring DHU |
Read Also: Different types of major defects of sweater factories
No comments