Burette, 25mL - Class A - With PTFE Needle Valve Rotaflow Stopcock - Blue Graduations - Borosilicate Glass

Name: Burette, 25mL - Class A - With PTFE Needle Valve Rotaflow Stopcock - Blue Graduations - Borosilicate Glass
Brand: Eisco Labs
SKU: CH0238B
Price: 25.99 USD
Availability: InStock

SKU CH0238B

by Eisco Labs

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$25.99 - $25.99

$25.99

$25.99 - $25.99

$25.99

Ships from Rochester, NY
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Ships from Rochester, NY
US Customer Service
30-Day Return Policy

Description

25ML || Burette with 25ml capacity
CLASS A || ± 0.05mL tolerance and 0.10ml sub. divisions - Accurate as per class A, DIN ISO 385 Compliant
FEATURES || Includes an attached PTFE needle valve rotaflow stopcock
DURABLE & STURDY || Burette is made of precisely bore high quality, heavy duty Borosilicate 3.3 glass - Built to last
PREMIUM QUALITY || Features chemical resistant blue printing - All contents are included in a single package

Class A, Accuracy as per DIN ISO 385 standard. Burette is made of high quality 3.3 borosilicate glass. PTFE Needle Valve Rotaflow Stopcock.

Capacity 25ml

Sub. Div.0.10ml

Tolerance ± 0.05ml

Eisco Labs Borosilicate glass has the following heat tolerances: Strain Point -515°C | Annealing Point 565°C | Softening Point 820°C.
Calibrated for delivery.

Eisco Labs proudly manufactures its own products using state-of-the-art equipment, and following the highest standards of quality control.
Each product is carefully designed by a team of laboratory professionals and experienced engineers with quality and durability in mind. They are manufactured with only the highest grade, raw materials and according to international quality standards to ensure that they can withstand use in even the toughest laboratory environments.

Material Info

Thermal Properties

Strain Point: 515°C
Annealing Point: 565°C
Softening Point: 820°C
Coefficient of Linear Expansion: 32.5 x 10^-7 / °C
Specific Heat: 0.2
Thermal Conductivity (Cal/cm³°C/Sec): 0.0027

Chemical Durability - Contact

Water distilled at 100°C: 6 hours - 10 mg/m² lost
Water vapour steam at 121°C: 1 hour - 75 mg/m² lost
Acid HCl: 6 hours - 100 mg/m² lost
80% H₂SO₄at 130°C: 12 hours - 140 mg/m² lost
Alkali -1N solution of Na₂CO₃boiling: 6 hours - 4000 mg/m² lost

Chemical Durability - Isotonic Infusion Fluids

NaCl (0.85%) at 121°C: 2.5 hours - 70 mg/m² lost
Glucose (5%) at 121°C: 2.5 hours - 50 mg/m² lost

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About Eisco Labs

Started over 50 years ago as a small, family-owned manufacturing company, Eisco now produces over 6,500 product lines for the science education and scientific research markets. They have headquarters in both India and the US, and serve hundreds of distributors around the world.

Their core products include glassware, physics apparatus, biology models & equipment, and chemistry lab supplies. Products are designed by a team of laboratory professionals and engineers with quality and durability in mind.