| Project Overview

External Visual Inspection is a test method that examines the surface or external structure of an object through direct visual observation or with the aid of optical instruments (such as magnifiers or microscopes).

| Test Objective

By observing the external morphology of an object with the naked eye or optical tools, surface defects and anomalies can be detected, identifying flaws that may affect its function, performance, or safety, such as:

1. Structural defects: cracks, fractures, deformation, wear, and similar issues.

2. Manufacturing defects: burrs, scratches, dimensional deviations, or excessively high surface roughness.

3. Assembly defects: misaligned components, missing fasteners, or loose connections.

4. Material defects: coating delamination, oxidation corrosion, bubbles, or inclusions.

| Testing Standards

GJB 4027B-2021、GJB 128B-2021、GJB 548C-2021.

| Service Products / Fields

Manufacturing industry, aerospace and automotive industries, electronics sector, and materials and scientific research fields.

| Project Advantages

1. Non-Destructive: No need to disassemble or damage the tested object, making it suitable for the inspection of finished products or critical components.

2. Intuitive and Efficient: Capable of quickly locating surface defects, particularly suitable for quality screening in mass production.

3. Low Cost: Basic visual inspection tools (such as magnifiers) are inexpensive and require a low technical threshold.

4. High Flexibility: Inspection accuracy can be adjusted with different optical instruments to meet diverse requirements.

| MTT Advantages

1. Professional Team: A team of highly experienced testing engineers and technical experts.

2. Advanced Equipment: Equipped with internationally leading testing instruments to ensure accuracy and reliability of results.

3. Efficient Service: Rapidly respond to customer needs and provide one-stop, high-efficiency inspection services.

4. Authoritative Certification: The laboratory is certified by ISO/IEC 17025, ensuring that test reports have international credibility.