What is DHU? How to measure DHU?

What is DHU?

DHU stands for Defects per Hundred Unit. Theoretically, it is the total number of defects found in a hundred checked processes/garments. It is also known as DPHU (Defects Per Hundred Unit)

To measure the DHU, the definition of defects and defective items should be cleared. To know clearly about the defect and defective item click here.

How to measure DHU?

To measure the DHU of any process or garment, the following information should be needed-

1. Total pieces checked

2. Total defects found in those checked pieces

Now easily can calculate the DHU by following formula-

DHU = (Total number defects found X 100) / Total pieces checked

A sample data collection format form DHU is shown in the below figure.

Figure: Quality Inspection Checklist for DHU Data Collection

In the above figure, a quality inspector checked 986 pieces of a process/garment and found a total of 179 defects. Now we will calculate the DHU of the process.

Here,

Total pieces checked = 986

Total defects found in those checked pieces = 179

Now, put the value on DHU formula.

DHU = (Total number defects found X 100) / Total pieces checked

         = (179 × 100)/986 = 18.15