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What is quality three inspection?
The three major quality inspections are self-inspection, mutual inspection and special inspection.

1, self-check:

During the operation, members of the construction team must conduct self-inspection according to the quality acceptance records of the corresponding inspection lot. The construction can only continue after the self-inspection reaches the quality standard and is accepted by the team leader.

During the construction, the team leader must check the work quality of each member of the team item by item according to the inspection contents listed in the corresponding quality acceptance records. After completion, carry out self-inspection item by item, and fill in the self-inspection record carefully. After the self-inspection reaches the standard, the builder can organize the quality acceptance.

2. Mutual inspection:

Inspection of job exchange: After the last working procedure is completed and before the next working procedure is inserted, the technical person in charge of the project must organize the foremen and team leaders of both parties to conduct handover inspection. After careful examination and signature by both parties, the next process can be carried out. Without the handover inspection or although the handover inspection does not meet the engineering requirements of the inspection lot, the contractor may refuse to insert the construction.

3. Special inspection:

All subdivisional work, concealed inspection and pre-inspection projects must be carried out according to procedures, and special inspectors shall be invited as a working procedure for quality inspection and evaluation. The next working procedure shall not be carried out for the project that has not been inspected and evaluated by the special inspector, or the project that has not reached the quality standard after inspection and evaluation. Special inspectors have the right to impose financial penalties on those responsible for violating this regulation.

Appearance quality inspection and internal quality inspection:

Appearance quality inspection:

It mainly examines the appearance, structure, pattern, color, smell, touch, defects, surface processing quality and surface defects of commodities. Check the appearance of clothing for defects such as breakage, obvious color difference, yarn drawing, colored yarn, broken yarn, stain, fading, mottled color, etc.

Internal quality inspection:

Generally, it refers to the inspection of the variety and content of effective ingredients, the limit of harmful substances, the chemical composition, physical properties, mechanical properties, process quality and use effect of commodities. The same commodity has different specifications according to its shape, size, size, shape, style, quantity, density and packaging type.