JIS L1096 Item 8.4 Method B testing: the specifications that decide the fit

The Digital Thickness Gauge (TNG1089) and Fabric Thickness Tester (TNG1094) are suitable for compliance with JIS L1096 Item 8.4 Method B, as their specifications align with the required parameters for accurate thickness measurement.

Understanding Specification Tables

Reading a specification table is essential for ensuring that an instrument meets the necessary standards for testing. For instance, the range of thickness for the Digital Thickness Gauge (TNG1089) is specified as 0.01~25mm (optional: 0.001~25mm). This range is critical because it allows the instrument to measure both thin and thick materials, which is necessary for fabrics and other textile materials that can vary widely in thickness. The optional lower range of 0.001mm provides even greater precision for very fine materials, ensuring that the test results are reliable and consistent with the JIS L1096 standard.

Another important specification is the measuring accuracy, which is 0.01mm for both TNG1089 and TNG1094. This level of accuracy is vital for meeting the precision requirements of JIS L1096 Item 8.4 Method B. It ensures that the measured thickness values are within an acceptable margin of error, which is crucial for quality control and compliance with industry standards.

Pressing Foot Specifications

The lowering speed of the pressing foot is set at 1.72 mm/s for both instruments. This speed is designed to ensure that the pressure is applied uniformly and consistently across the sample, which is essential for obtaining accurate and repeatable results. A controlled pressing speed prevents any uneven compression that could skew the thickness measurement.

The area of the pressing foot is another key specification. The TNG1089 offers options of 100mm², 2000mm², 2500mm², and 10000mm². Similarly, the TNG1094 provides the same range. The choice of pressing area affects the pressure distribution over the sample. A smaller area, such as 100mm², is suitable for measuring thin, delicate materials, while a larger area, like 10000mm², is better for thicker or more robust materials. This flexibility allows the instruments to adapt to various test scenarios, ensuring that the measurements are relevant and accurate for the specific material being tested.

Load Weight and Pressing Duration

The load weight options for both instruments include 2cN x 2, 5cN x 1, 10cN × 2, 50cN × 2, 100cN x 1, 400cN x 1, and 1000cN × 2. These different load weights allow for the application of varying pressures, which is necessary for testing materials with different stiffness and density. The pressing duration is set to 10s or 30s, which ensures that the material is compressed for a sufficient time to achieve a stable measurement. This duration is crucial for obtaining consistent results, as it allows the material to settle under the applied load, reducing the risk of measurement errors due to transient deformation.

Instrument models referenced

• TNG1089 Digital Thickness Gauge (Fineness / Thickness / Length / Density Testing).
• TNG1094 Fabric Thickness Tester(Gauge) /B (Fineness / Thickness / Length / Density Testing).