Volumetric Flask
Product Code : SCL-CLE-11892
The StemAids Volumetric Flask is a high-precision laboratory instrument engineered for the preparation of standard solutions and the accurate dilution of liquids to a fixed volume. Unlike graduated cylinders or beakers, which offer general volume estimations, the volumetric flask is calibrated "To Contain" (TC) a specific quantity of liquid at a standard temperature (usually 20?C) with extreme accuracy. Manufactured to ISO 1042 standards, these flasks are critical for analytical chemistry, titration, and pharmaceutical research where exact molarity is required.
Technical Specifications
|
Tender Specification |
OEM Technical Detail |
|
Material |
Borosilicate Glass 3.3 (Expansion 33) or Chemical-Resistant Polypropylene |
|
Accuracy Class |
Class A (High Precision) or Class B (Educational/Routine) |
|
Capacities |
5ml,10ml,25ml,50ml,100ml,250ml,500ml,1000ml,2000ml |
|
Closure System |
Ground-glass stopper or Polyethylene (PE) snap/screw cap |
|
Calibration |
Single permanent graduation mark (meniscus line) on the neck |
|
Heat Resistance |
Highly resistant to thermal shock and chemical corrosion |
|
Markings |
High-contrast white or blue enamel for volume and tolerance data |
|
ISO Compliance |
Manufactured under ISO 9001:2015 and ISO 1042 Quality Systems |
Key Pedagogical & Laboratory Outcomes
- Precision Interface: Facilitates the understanding of Analytical Accuracy. The narrow neck ensures that even a small change in volume results in a significant change in the height of the liquid, allowing for precise meniscus alignment.
- Solution Quantification: Enables the preparation of Standard Solutions; learners apply stoichiometric calculations to dissolve a precise mass of solute into a solvent to reach the specific graduation mark.
- Dilution Analysis: Supports the analysis of concentration gradients; students evaluate the M1V1=M2V2 formula by accurately diluting concentrated stock solutions to lower molarities.
- Error Minimization Evaluation: Allows students to evaluate the difference between "To Contain" (TC) and "To Deliver" (TD) instruments, fostering a deeper understanding of laboratory measurement errors and tolerances.
International Logistics & Compliance
StemAids ensures comprehensive OEM readiness for global institutional procurement:
- Packaging: Export-grade, double-reinforced packaging. Each flask is individually bubble-wrapped and nested in partitioned cartons to prevent mechanical fracture during maritime or air transit.
- Documentation: Includes Manufacturer’s Authorization Form (MAF) and individual Calibration Certificates (for Class A flasks) traceable to national standards.
- Durability: The Borosilicate 3.3 glass is "annealed" to remove internal stresses, making the flask exceptionally resistant to chemical attack by acids and alkalis.
Direct OEM Sourcing Advantages
Procuring StemAids Volumetric Flasks directly ensures vertical manufacturing control:
- Certified Tolerances: Direct oversight of the calibration process ensures that every Class A flask meets the strict tolerance limits required for professional analytical work.
- Permanent Identification: We use fired-on ceramic enamel for all markings, ensuring the graduation mark and volume data do not fade or wash off even after repeated autoclaving or solvent exposure.
- Direct Factory Inventory: Guaranteed availability of the full range of sizes to ensure a uniform laboratory setup across entire university departments.
- Quality Assurance: Every flask is gravimetrically tested with distilled water at 20?C to verify that the etched line represents the exact specified volume.