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ASTM Yo-Yo Ball Test Instruments, such as the GT-MB19B or SL-S32, measure the length and elastic constant of yo-yo balls to determine if they pose a neck injury risk, strictly adhering to ASTM F963 Section 4.37 and 8.24. These devices, often used by Skyline Instruments, simulate use by testing the elastic rope's length and extension, typically operating at 80 rpm to determine if the cord can cause injury.
Common ASTM Yo-Yo Ball Test Instruments
- GT-MB19B Yo-Yo Ball Length Tester (GESTER): A specialized unit designed to measure the initial length and elongation of yo-yo ball elastic cords under specific rotational speeds (80 rpm) to meet safety standards.
- SL-S32 Yo-yo Balls Tester (Skyline Instruments): A tool to measure the elastic constant and length, often including a steel ruler, graduated scale, and specialized weights.
- AT09 ASTM Yo-Yo Ball Tester (AVENO): Used to test the elongation performance of yo-yo ball elastic rope toys for compliance with safety standards.
- Yo-yo Ball Tester (Universal Tester): Designed for EN-71-1 clause 8.37 and ASTM F963 requirements to test the initial length and elastic constants.
Key Features and Standards
- Safety Standard: Adheres to ASTM F963 (Standard Consumer Safety Specification for Toy Safety) section 4.37/8.24.
- Measurement Capabilities: Measures the length of the cord when rotating at 80 rpm, which determines if the yo-yo ball meets the required safety standards to prevent choking or strangulation hazards.
- Components: These testers often feature a stainless-steel structure, automatic rotation, and precise measuring scales to ensure consistent results.
Testing Parameters
- Rotary Speed: rpm.
- Elongation: Measures the max length of the string to ensure it meets safety standards.
- Instrument Structure: Includes a steel ruler, scale, weights, and a rotational device.
For more detailed information on the ASTM F963 regulation, refer to the Federal Register's explanation.
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ASTM Yo-Yo Ball Length Tester GT-MB19B
gestertester.com
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ASTM YO-Yo Ball Tester used for measure the length of YO-YO ball under the 80rpm rotary speed, to determine whether the YOYO ball of the elastic ropes have the ...Read more
ASTM F963 Yo Yo Ball Length Tester GT-MB19B
YouTube · Gester Instruments
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220+ views · 1 year ago
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aveno technology co., limited
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aveno technology co., limited
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ASTM YO-yo Ball Tester is used for testing the elongation performance of yo - yo ball elastic rope toy. · model : AT09 · Brand: AVENO · origin: China · Lead Time：.
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The yo-yo ball rope extension test instrument makes the length measuring system( to calculate the elongation length) and the yo-yo ball installed in the same ...
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Description: The yo-yo ball rope extension test instrument makes the length measuring system( to calculate the elongation length) and the yo-yo ball installed ...
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The yo-yo ball rope extension test instrument makes the length measuring system( to calculate the elongation length) and the yo-yo ball installed in the ...
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SL-S32 Yo-yo Balls Tester - Lab Testing Machine Manufacturer
lab-testequipment.com
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It is to measure the initial length and elastic constant of the Yo-Yo ball. Includes steel ruler, measurement and graduated scale and weights.