Measuring Cylinder
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Product Code : SCL-CLE-12384
The StemAids Narrow Mouth Reagent Bottle is a high-integrity storage solution engineered for the long-term containment of volatile reagents and light-sensitive chemicals. Constructed from Borosilicate 3.3 glass, it ensures maximum resistance to thermal shock and chemical leaching. Compliant with ISO 4796 standards, it is optimized for University, Research, and Vocational laboratory environments requiring precise fluid management and contaminant-free storage.
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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Closure System |
Ground-glass interchangeable stopper / Polyethylene (PE) |
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Neck Geometry |
Precision-tapered narrow mouth for controlled pouring |
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Thermal Resistance |
High-strain point; suitable for repeated sterilization |
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Chemical Durability |
Class 1 Hydrolytic Resistance (ISO 719) |
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ISO Compliance Code |
ISO 4796-2 (Laboratory glassware — Narrow-neck bottles) |
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HS Code |
7017.90 (Laboratory Glassware) |
Key Pedagogical Outcomes (Bloom’s Taxonomy Alignment)
Feature: Precision-Ground Neck and Stopper Outcome: Facilitates student "Application" of airtight sealing techniques, essential for preserving the molarity of standard solutions in quantitative analysis.
Feature: Chemically Inert Borosilicate 3.3 Matrix Outcome: Supports the "Evaluation" of reagent purity by eliminating ion-exchange interference, ensuring students obtain high-fidelity results in analytical titration modules.
Feature: Controlled Narrow-Mouth Aperture Outcome: Enables the "Analyze" phase of liquid transfer, promoting student mastery of drip-free dispensing and hazardous chemical handling protocols.
Feature: Uniform Wall Thickness Outcome: Promotes "Understanding" of thermal expansion properties during the preparation of exothermic solutions, reducing the risk of mechanical failure.
International Logistics & Compliance
StemAids maintains a specialized export framework to ensure the metrological and structural integrity of laboratory glassware across global supply chains:
Packaging: Export-grade seaworthy crating (ISPM-15 compliant) utilizing internal high-density longitudinal supports to protect the glass matrix from vibrational stress and fracture.
Documentation: Includes Manufacturer’s Authorization Form (MAF), batch-specific Certificate of Conformity, and technical User Manuals in English.
Durability: Tropicalized design tested for operation in demanding climates (up to 45°C/90% Humidity), ensuring the glass remains free from alkali-leaching and surface clouding.
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: Neck and stopper interfaces undergo rigorous dimensional verification to ensure a vacuum-tight seal and universal interchangeability.
Vertical Quality Integration: Total oversight of the annealing and glass-forming cycles results in a low-strain glass matrix, significantly increasing the mechanical lifecycle of the instrument.
Batch-Tested for Uniform Reliability: Every production run is subjected to thermal-shock and hydrolytic-resistance tests to meet the definitive standards required for international tenders.
Direct Factory Spares Availability: Guaranteed long-term availability of compatible stoppers and various capacities to prevent laboratory downtime and ensure asset continuity.
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