Ostwald Viscometer
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Product Code : SCL-CLE-12368
The StemAids Ostwald Viscometer is a precision-calibrated glass apparatus engineered for the quantitative determination of kinematic viscosity in Newtonian fluids. Compliant with ISO 3105 and ASTM D445 standards, this instrument is optimized for University and Vocational fluid dynamics research. It utilizes a gravitational flow methodology through a precision-bore capillary to ensure repeatable high-fidelity data acquisition.
Technical Specifications
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Tender Specification |
OEM Technical Detail |
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Material Grade |
Low-expansion Borosilicate 3.3 Glass |
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Apparatus Type |
U-Tube Glass Capillary (Ostwald Design) |
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Measurement Method |
Gravitational Efflux Timing (Poiseuille's Law) |
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Graduation Marks |
Permanent high-contrast ceramic markings for volumetric tracking |
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Chemical Resistance |
Class 1 Hydrolytic Resistance (ISO 719) |
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ISO Compliance Code |
ISO 3105 / ASTM D445 / ASTM E438 Type I |
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HS Code |
9027.89 (Instruments for Physical or Chemical Analysis) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
Feature: Precision-Bore Capillary Outcome: Facilitates student "Analysis" of liquid flow rates and the impact of internal molecular friction on kinematic viscosity.
Feature: Dual-Bulb Architecture Outcome: Supports the "Application" of Poiseuille's Law by providing a defined pressure head for gravity-driven volumetric displacement.
Feature: High-Contrast Graduation Marks Outcome: Enables "Evaluation" of efflux time with minimized parallax error, supporting advanced modules in Fluid Mechanics and Rheology.
Feature: Borosilicate 3.3 Thermal Stability Outcome: Promotes "Understanding" of temperature-dependent viscosity variations, allowing for safe immersion in constant-temperature water baths.
International Logistics & Compliance
StemAids maintains an export-ready operational framework to satisfy the stringent requirements of international institutional procurement:
Packaging: Export-grade seaworthy crating (ISPM-15 compliant) featuring bespoke internal high-density cushioning to eliminate transit-related vibrational stress on delicate glass components.
Documentation: Includes Manufacturer’s Authorization Form (MAF), Certificate of Conformity (CoC), and User Manuals in English.
Durability: Tropicalized design tested for operation in demanding climates (up to 45°C/90% Humidity), ensuring the glass matrix remains free from hydrolytic clouding.
Direct OEM Sourcing Advantages
Procurement via the StemAids vertical manufacturing channel provides definitive factory-direct authority and long-term asset security:
In-house Precision Calibration: Every capillary bore is batch-verified for dimensional accuracy to ensure uniform flow constants across all units.
Batch-tested for Uniform Reliability: Every production run is subjected to rigorous annealing and thermal-stress tests to maintain scientific instrument standards for global tenders.
Direct Factory Spares Availability: Guaranteed long-term availability of specific replacement components and matching viscometer stands to prevent laboratory downtime.
Vertical Quality Integration: Direct oversight of raw material sourcing ensures the highest grade Borosilicate 3.3, preventing secondary-market impurities and ensuring structural integrity.
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