Perfect Glass Instrument Co.

• Capacity (ml) - 250 ml
• N/S - 14/23
• Tolerance (± ml) - 0.15 ml

• Precision Preparation: Manufactured from chemical and heat-resistant Borosilicate 3.3 glass, these Class A volumetric flasks guarantee exceptional accuracy for precise volume measurements in your laboratory.
• Clear Visibility: The clear design offers optimal visibility for easy meniscus reading, ensuring reliable results in your experiments.
• Secure Closure: Featuring a glass penny head stopper, these flasks provide a secure and leak-proof seal for confident sample storage and preparation.
• Better Stability: Supplied in volumes ranging from 5 mL to 20 mL, with a trapezoidal shape.

• Capacity (ml) - 100 ml
• N/S - 14/23
• Tolerance (± ml) - 0.10 ml

• Precision Preparation: Manufactured from chemical and heat-resistant Borosilicate 3.3 glass, these Class A volumetric flasks guarantee exceptional accuracy for precise volume measurements in your laboratory.
• Clear Visibility: The clear design offers optimal visibility for easy meniscus reading, ensuring reliable results in your experiments.
• Secure Closure: Featuring a glass penny head stopper, these flasks provide a secure and leak-proof seal for confident sample storage and preparation.
• Better Stability: Supplied in volumes ranging from 5 mL to 20 mL, with a trapezoidal shape.

Specification: 

• Capacity (ml) - 100 ml
• N/S - 14/23
• Tolerance (± ml) - 0.10 ml

• Precise Dilutions: Manufactured from chemical and heat-resistant Borosilicate 3.3 glass, these amber volumetric flasks (Class A) ensure accurate and reliable dilutions for your laboratory needs. 
• Light-Sensitive Samples: The amber tint protects light-sensitive solutions, maintaining sample integrity throughout your experiments. 
• Secure & Secure Closure: The included glass penny head stopper provides a secure and leak-proof closure for confident sample storage. 
• Better Stability: Supplied in volumes ranging from 5 mL to 20 mL, with a trapezoidal shape.