Fiber Blend Ratio Tester ASTM D4496
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The Fiber Blend Ratio Tester is designed to measure the electrical resistance of a compacted fiber sample and convert it into the specific resistance of the fiber according to its filling density. It provides accurate, repeatable measurements for fiber quality evaluation, research, and production control, suitable for textile, nonwoven, and fiber material laboratories.
Application
(1) Testing specific resistance of synthetic staple fibers such as polyester, rayon, acrylic, and nylon in textile manufacturing.
(2) Quality control and R&D of fiber blends in nonwoven fabrics, yarns, and felts.
(3) Evaluation of cotton, wool, and blended natural fibers for electrical properties.
(4) Measurement of resistance in technical textiles used in automotive, aerospace, and medical applications.
(5) Assessment of fiber-based materials for smart textiles, conductive fibers, and anti-static fabrics.
(6) Comparative analysis of recycled fibers or fiber mixtures for product development.
Standards
(1) GB/T 14342-1993: Synthetic short fiber specific resistance test method.
(2) GB/T 14342-2015: Updated national standard for specific resistance measurement of man-made staple fibers.
(3) ISO 2060: Determination of the fineness of fibers by electrical resistivity (analogous methodology).
(4) ASTM D4496: Standard test method for electrical resistance of textile fibers.
(5) EN 1149-1: Protective clothing—Electrostatic properties—Test method for surface resistivity of fibers and textiles.
(6) JIS L 1020: Test method for electrical resistance of textile fibers.
Features
(1) Standard Compliance: Fully adheres to GB/T 14342 and other international standards.
(2) Wide Measurement Range: Measures fiber specific resistance from 10^6Ω to 10^13Ω.
(3) Accurate Voltage Application: Provides stable 50V and 100V test voltages with less than 5% deviation.
(4) Stable Operation: Reliable in controlled temperature (20℃±2℃) and humidity (65%±10%RH).
(5) Low Zero Drift: Less than 4% over 1–8 hours under stable voltage with no signal input.
(6) High Basic Accuracy: Basic error ≤±20% relative to standard resistance measurements.
(7) Compact Design: Laboratory-friendly size (450×265×133 mm).
(8) Indirect Measurement: Converts measured bulk resistance of compacted fiber into specific resistance.
(9) Resistance Measurement System and Fiber Compaction Chamber: Ensures precise measurement.
Parameters
| Parameter | Specification |
|---|---|
| Fiber specific resistance range | 10^6Ω – 10^13Ω |
| Test sample weight | 15 g |
| Measurement voltage | 50V, 100V, deviation <5% |
| Working temperature | 20℃ ±2℃ |
| Working humidity | 65% ±10% RH |
| Zero drift | <4% over 1–8 hours |
| Basic measurement error | ≤±20% |
| Power supply | AC 220V |
| Overall size | 450 × 265 × 133 mm (L×W×H) |
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