Test Tubes Pack
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Product Code : SCL-CLE-12377
StemAids Test Tubes are engineered for high-thermal-stress laboratory applications, meeting ISO 3585 and ASTM E438 Type I standards. Designed for Secondary and University-level science curricula, these Borosilicate 3.3 glass vessels provide uniform wall thickness and superior chemical resistance for qualitative and quantitative analysis in rigorous educational environments, ensuring long-term durability under repeated sterilization cycles.
Technical Specifications
|
Tender Specification |
OEM Technical Detail |
|
Material Grade |
Low-expansion Borosilicate 3.3 Glass |
|
Rim Configuration |
Fire-polished to resist mechanical chipping |
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Wall Integrity |
Uniform wall thickness for balanced thermal expansion |
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Thermal Resistance |
High strain point; resistant to direct Bunsen burner application |
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Chemical Durability |
Class 1 Hydrolytic Resistance (ISO 719) |
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ISO Compliance Code |
ISO 3585 / ASTM E438 Type I, Class A |
|
HS Code |
7017.90 (Laboratory Glassware) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
Feature: Uniform Wall Geometry Outcome: Facilitates student "Application" of safe heating protocols by ensuring even heat distribution, supporting Chemistry Module 101 and Thermodynamics.
Feature: High Chemical Inertness Outcome: Enables student "Evaluation" of reaction purity by eliminating ionic leaching, essential for high-fidelity qualitative analysis.
Feature: Fire-Polished Rim Finish Outcome: Supports the "Understanding" of laboratory safety and ergonomics, reducing breakage during stopper insertion and manual handling.
Feature: Borosilicate 3.3 Thermal Stability Outcome: Promotes "Analysis" of phase changes and exothermic reactions without risk of mechanical vessel failure.
International Logistics & Compliance
StemAids maintains an export-ready operational framework to satisfy the rigorous technical requirements of international institutional procurement:
Packaging: Export-grade seaworthy crating (ISPM-15 compliant) utilizing high-density internal cellular partitioning to secure the 100-unit packs against vibrational and impact stress.
Documentation: Consignments include a Manufacturer’s Authorization Form (MAF), Certificate of Conformity (CoC), and Technical Data Sheets 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 degradation during transit and storage.
Direct OEM Sourcing Advantages
Procurement via the StemAids vertical manufacturing channel provides institutional stakeholders with definitive factory-direct authority and technical assurance:
In-house Precision Calibration: Every batch undergoes dimensional verification to ensure uniform outer diameters and wall thickness across all 100 units.
Vertical Quality Integration: Complete oversight of the glass-forming and annealing cycles results in a low-strain glass matrix, significantly increasing hardware lifespan.
Batch-Tested for Uniform Reliability: Every production run is subjected to thermal-shock and chemical-resistance testing to maintain definitive scientific instrument standards.
Direct Factory Spares Availability: Guaranteed long-term availability of specific replacement units and compatible laboratory racks to ensure institutional asset continuity.
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