Overview
The LX-F sponge hardness gauge is an instrument introduced by HBO for measuring the Hardness of soft foam and polyurethane foam. The instrument uses a presser foot to directly contact the sample and uses its own weight as a force measurement load, which is different from the Miscellaneous hardness gauge in testing.
Features
1. Specially designed for flexible foam materials, suitable for sponge and polyurethane foam adhesives.
2. Using presser foot to directly contact the sample, Test method is unique.
3. Use the weight of the instrument as the force load without additional loading.
4. Compact structure, light weight, easy to carry and use.
Principle
The Working Principle of the hardness gauge is to place the presser foot of the instrument directly on the sample of soft foam material to be tested. The weight of the instrument itself is applied to the sample as a standard force measurement load, and the pressure foot is pressed into the depth or related displacement under a specific load. After internal mechanism conversion, it is finally displayed on the dial in the form of Hardness Value (HF) to characterize the softness and hardness of the material.
Applications
Soft foam, polyurethane foam
Steps
1. Place the sponge hardness gauge smoothly on the surface of the foam sample to be tested to ensure that the presser foot is in complete contact with the sample.
2. Keep the instrument vertical, use its own weight as a load, and let it stand for a specified time.
3. Read the Hardness value (HF) indicated by the hands on the dial.
4. After the test is completed, remove the instrument from the surface of the specimen.
Notice
• Before use, please ensure that the instrument is clean and the presser foot is free of damage or foreign objects.
• When testing, the instrument should be placed vertically and smoothly on a flat surface of the sample.
• Avoid testing on the edges or uneven parts of the sample to avoid affecting the accuracy of the results.
• The instrument is a precision measurement tool, please handle it with care to avoid impact or fall.
• Regular maintenance and calibrating to ensure Measurement accuracy.
