Hare’s Apparatus
Product Code : SCL-PLE-11724
The StemAids Hare’s Apparatus is a precision-engineered hydrostatic demonstrator designed for the empirical comparison of liquid densities. Optimized for Secondary and Technical Vocational (TVET) physics, this three-limbed glass apparatus facilitates the quantification of relative density through the principle of common suction. Manufactured to ISO 9001:2015 standards, it provides a high-visibility solution for verifying Pascal’s Law and the relationship between fluid height and atmospheric pressure within institutional laboratories.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Apparatus Geometry |
Three-limbed inverted U-tube with central suction valve |
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Material Grade |
High-clarity, chemical-resistant Borosilicate 3.3 glass |
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Measurement Scale |
Integrated dual-graduated millimeter (mm) scales |
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Support Chassis |
Heavy-duty, powder-coated metallic or seasoned hardwood stand |
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Interface Hardware |
Chemical-resistant rubber/silicone tubing with pinch-cock valve |
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Base Configuration |
Weighted, stable base with leveling adjustment for vertical alignment |
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Functional Principle |
Hydrostatic Pressure / Common Suction Density Comparison |
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ISO Compliance Code |
Manufactured under ISO 9001:2015 Quality Management Systems |
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HS Code |
9023.00.00 (Educational/demonstrational scientific apparatus) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
- Hydrostatic Pressure Interface: Facilitates student visualization of how atmospheric pressure drives fluid displacement in connected vessels, supporting Fluid Mechanics Module 101.
- Relative Density Quantification: Enables the physical study of immiscible liquids, allowing learners to apply the formula h1ρ1=h2ρ2 to determine the density of an unknown liquid relative to water.
- Common Suction Analysis: Supports the analysis of pressure equilibrium by demonstrating that the height of a liquid column is inversely proportional to its density when subjected to a common vacuum.
- Experimental Error Evaluation: Allows students to evaluate the impact of vertical alignment and meniscus reading accuracy on the precision of calculated density values.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade seaworthy crating (ISPM-15 compliant) featuring specialized high-density foam molding to protect the delicate Borosilicate glass limbs from torsional stress during transit.
- Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformance (CoC), and Illustrated Setup Guides in English.
- Durability: Tropicalized design featuring corrosion-resistant support rods and UV-stable scales to ensure long-term performance in varied climates (up to 45°C/90% Humidity).
Direct OEM Sourcing Advantages
Procuring the Hare’s Apparatus directly from StemAids ensures vertical manufacturing control:
- In-House Glass Annealing: Every glass assembly is batch-tested for internal stress to ensure durability during repetitive suction cycles.
- Batch-Tested for Uniform Reliability: Every suction valve and pinch-cock assembly undergoes a vacuum-seal test to ensure the fluid columns remain stable for precise measurement.
- Direct Factory Spares Availability: Guaranteed availability of replacement Borosilicate limbs, specialized tubing, and graduated scales to maximize long-term laboratory ROI.
- Manufacturing Control: Direct oversight of the scale graduation process ensures the dual millimeter scales are perfectly aligned at the zero-index for accurate differential readings.
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