How to test a pen

 How to test a pen in third-party inspection

1. Appearance inspection: Check whether the appearance of the pen is intact, whether there are defects, deformation and other problems. Through visual inspection and hand feeling methods.

2. Writing performance test: Use professional writing test instruments, such as writing test machine and handwriting clarity tester, to test the writing fluency, handwriting clarity and ink drying speed of the pen.

3. Ink quality detection: Use chemical analysis methods such as spectrophotometry and chromatography to detect the color, concentration and stability of the ink.

4. Pen core quality detection: Use measuring tools such as calipers and hardness testers to detect the size, material and hardness of the pen core.

5. Safety detection: Use chemical analysis methods such as atomic absorption spectroscopy and gas chromatography to detect whether the pen contains harmful substances such as heavy metals and volatile organic compounds.

Pen test
1. Appearance inspection: Check whether the appearance of the pen is smooth, without obvious defects or scratches, and whether the pen cap, clip and other accessories are firm.

2. Writing Fluency: Test the writing on paper to see if the friction between the pen tip and the paper is smooth and not stuck.

3. Color Stability: Observe whether the ink is even and full after long-term writing, without fading or turbidity.

4. Wear Resistance: Write on paper repeatedly to see if the pen tip is obviously worn.

5. Compression Resistance: Test the pen with appropriate pressure to see if the pen body is easily deformed.

6. Leakage Resistance: Place the pen upside down to see if ink leaks.

7. Ergonomic Design: Observe whether the user will experience hand fatigue after holding the pen for a long time.

8. Environmental Adaptability: Place the pen in different temperature and humidity environments to see if its ink fluidity and appearance quality change.

The above pen test methods can be used to evaluate the quality and performance of a fountain pen to ensure its quality and comfort during use.