Volumetric Flasks, Clear, Class 'A' Batch Certificate - Glass Stopper

OMSONS Class A Volumetric Flasks with Batch Certificates are the highest precision glassware offered by the brand, used in analytical labs where traceability and extreme accuracy are required. These flasks comply with DIN/ISO 1042 standards and are often calibrated on fully automatic German machines to eliminate human error. 

• Accuracy Grade: Class A (Highest precision).
• Standard Compliance: DIN/ISO 1042.
• Material: High-quality Borosilicate 3.3 glass (low expansion, chemical resistant).
• Stopper: Supplied with an interchangeable ground glass stopper for a vacuum-tight seal.
• Calibration: Typically calibrated at 27°C (Standard for India/Asia) or 20°C (Standard for Europe).
• Printing: High-contrast blue enamel markings (acid and scratch-resistant).

• Batch Certificate: Unlike an "Individual Certificate" (which tracks a specific unique flask), a Batch Certificate documents the mean value, standard deviation, and issue date for the entire production batch.
• QR Code Access: Many modern OMSONS Class A flasks include a QR code on the glass, allowing you to download the specific certificate digitally via a smartphone.

• Preparation of Standard Solutions: Used to create solutions with an exact known concentration (e.g., molar solutions), which are the foundation for further chemical testing.
• Analytical Titrations: Essential for preparing the titrants or samples used in volumetric analysis, where even a 0.1% error in volume can invalidate the final concentration result.
• Quantitative Dilutions: Ideal for accurately diluting a high-concentration "stock" solution into a specific, lower concentration for experimental use.
• Instrument Calibration: Used to verify the accuracy of other laboratory tools like spectrophotometers, which rely on precisely prepared standards to generate a calibration curve. 

• Pharmaceutical Testing: Ensuring the correct dosage and formulation of medications, where adherence to strict regulatory standards (like USP or BP) is mandatory.
• Regulatory Audits & Compliance: The Batch Certificate (often accessible via a QR code on the flask) provides the necessary documentation for ISO/IEC 17025 audits, proving that the glassware meets international accuracy standards.
• Environmental Analysis: Preparing samples for the trace analysis of pollutants in water or soil, where high sensitivity requires accurate volume measurements.
• Research & Development (R&D): Critical for synthesising new compounds where precise molar ratios determine the success of a chemical reaction. 

Spesification

• Material: Clear 3.3 Borosilicate Glass 
• Size: Select from drop down
• Joint Size: Select from drop down
• Stopper: Supplied with an interchangeable ground glass stopper for a vacuum-tight seal.
• Calibration: Typically calibrated at 27°C (Standard for India/Asia) or 20°C (Standard for Europe).
• Printing: High-contrast blue enamel markings (acid and scratch-resistant).
• Brand: OMSONS
• Product of India