An industrial Analog Advance Tearing Strength Tester is a manual, pendulum-type device based on the Elmendorf tear test method. It measures the force needed to propagate a tear in a pre-cut sample of materials like fabrics, paper, or plastic films. The "analog" and "advance" designations refer to its operation using a manual pendulum and its high precision compared to older models.Elmendorf tear test method: A sample is held in a clamp and a small, precise slit is made. When the pendulum is released, its stored potential energy is converted into kinetic energy, tearing the sample.Pendulum and scale: The energy absorbed by the tearing action is measured by the subsequent swing of the pendulum. An analog scale, marked from 0 to 100%, indicates the tearing strength.Augmenting weights: To accommodate materials with different tearing resistance, the base capacity (e.g., 1600 grams) can be increased by adding augmenting weights (e.g., to 3200g or 6400g).Manual operation: The pendulum is released manually via a brake pin, and the operator reads the result from the analog scale.Rugged construction: Built with durable, corrosion-resistant materials like mild steel or stainless steel to withstand harsh industrial environments. This tester is essential for quality control in industries where material tear resistance is a critical factor for product performance and durability.Textiles: Used for clothing, upholstery, and technical fabrics like those in tents and uniforms, where a strong tear resistance is needed.Paper and packaging: Measures the durability of paperboard, corrugated sheets, and plastic films to ensure integrity during transport and use.Plastics and films: Important for packaging, electrical tapes, and other applications where a tear could compromise the product.Aerospace and automotive: For testing materials used in parts and components that require high tear strength.To ensure accurate and repeatable test results, industrial tear testers are designed to conform to international and national standards. Common standards include:ASTM D1424 (Standard Test Method for Tearing Strength of Fabrics)ASTM D689 (Tearing Strength of Paper and Paperboard)ISO 1974 (Determination of tearing resistance of paper)ISO 13937-1 (Determination of tearing force for fabrics
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