ASTM F970 static load test
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The Carpet Static Load Tester is a precision instrument designed to simulate the imprints left by furniture on carpets and evaluate the carpet’s recovery after long-term compression. It applies a controlled heavy load over a defined area and period, allowing accurate measurement of thickness reduction and recovery. This tester ensures compliance with international standards for carpet durability testing, providing reliable data for manufacturers, laboratories, and quality control applications.
Application
You can use this tester to evaluate the resilience and durability of textile carpets after static compression. Typical applications include:
(1) Testing the long-term deformation of carpets under furniture loads
(2) Evaluating recovery performance of residential and commercial carpets
(3) Quality control in carpet manufacturing and inspection processes
(4) Research and development of new carpet materials and structures
(5) Comparative testing of carpets with different thicknesses or pile structures
This tester is suitable for all types of textile carpets, including standard carpet tiles and full-size carpet samples.
Standards
The Carpet Static Load Tester is designed to comply with international standards, including:
(1) BS 4939: 1987 (1996) — Determination of the reduction in thickness of carpets after long-term heavy static loading
(2) ISO 3416: 1986 — Wool carpets — Test method 124 Part B
(3) Wools of New Zealand test method 124 Part B — Evaluation of carpet compression and recovery
(4) ASTM D5252 — Standard test method for thickness loss of carpets under static load
Parameters
| Item | Specification |
|---|---|
| Static Pressure | 7.0 kg/cm² (≈ 0.70 MPa) |
| Loading Area | 6.0 cm² (Ø ≈ 27.6 mm circular foot) |
| Load Accuracy | ±0.5 % F.S. |
| Dwell Time | 1 min – 99 h 59 min (programmable; standard 24 h) |
| Thickness Measurement Range | 0 – 50 mm |
| Thickness Resolution | 0.01 mm |
| Recovery Observation Period | Up to 24 h (programmable) |
| Frame Material | Anodized aluminum and stainless steel |
| Loading Foot | Polished stainless steel, interchangeable weights |
| Test Bed Dimensions | 250 × 250 mm (accommodates standard carpet tiles) |
| Safety | Transparent polycarbonate guard with interlock |
| Controller | 4.3-inch color touch-screen PLC |
| Data Export | USB flash drive (CSV format) |
| Power Supply | 220 V AC ±10 %, 50/60 Hz, 300 W |
| Machine Dimensions (W×D×H) | 450 × 480 × 650 mm |
| Net Weight | ≈ 45 kg |
| Operating Temperature | 15 °C – 35 °C |
| Relative Humidity | 20 % – 80 % RH, non-condensing |
Features
Simulates furniture imprints accurately on carpet surfaces.
Meets international standards for static load carpet testing.
Integrated design allows direct use of thickness gauge for fast, precise measurement.
Compact, durable, and user-friendly structure.
Programmable dwell time and recovery observation period for flexible testing.
Safety features including transparent guard with interlock for operator protection.
Easy data export via USB for analysis and record-keeping.
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