• Burette Glass, PTFE Rotaflow Needle Valve - Class A

Burette Glass, PTFE Rotaflow Needle Valve - Class A

BTRT10ML-CLA

  • Lab and Research

Vendor: OMSONS

Suited For: Lab and Research

Country of Origin: India

30-Day Limited Warranty
This product is covered against manufacturing defects in materials and workmanship for 30 days from the date of purchase.

This warranty does not cover: breakage caused by thermal shock (rapid heating or cooling); physical or mechanical damage, including drops, impacts, chips, and cracks from handling; damage from use outside the glassware's rated temperature, pressure, or chemical compatibility; damage from improper cleaning; normal wear such as scratching, staining, or discolouration; or unauthorised repair or modification.

To claim, contact SmartLabs within 30 days of purchase with proof of purchase and a description of the defect.
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Class A glass burettes with PTFE Rotaflow needle valves are precision volumetric instruments designed for accurate titration. The Rotaflow valve provides smooth, leak-proof control without the need for lubrication, as the PTFE needle is highly resistant to chemical attack. 

Key Features
  • Accuracy: Conforms to ISO 385 Class A standards, offering high precision for professional laboratory work.
  • Material: Manufactured from heavy-duty Borosilicate 3.3 glass, ensuring excellent thermal and chemical durability.
  • Rotaflow Valve: Features a screw-thread stopcock with a PTFE needle for fine flow control. Unlike glass stopcocks, these do not "freeze" and require no grease.
  • Certifications: Often supplied with a batch certificate or individual certificate to confirm accuracy and traceability. 
 
Common Sizes and Accuracy
 
Capacity (mL)  Graduation (mL) Tolerance (
mL)		 Typical Use
10 mL 0.05 0.03 Micro-titrations
25 mL 0.10 0.05 Standard lab analysis
50 mL 0.10 0.05 Most common titration size
100 mL 0.20 0.10 Large volume titrations
 
Specifications
  • Compliance: Fully compliant with ISO 385:2005 standards for volumetric glassware.
  • Accuracy: Class 'A' precision, ensuring the lowest possible error limit for high-stakes analytical work.
  • Material: High-grade Borosilicate 3.3 Glass, providing superior resistance to chemical corrosion and thermal shock.
  • Graduations: Durable Blue (amber on request) enamel graduations for high contrast and permanent visibility against dark or colored titrants.
  • Stopcock Type: Rotaflow Key with a PTFE Needle Valve. This screw-thread design allows for "drop-by-drop" precision without the risk of the valve seizing or requiring lubrication.
  • Brand: OMSONS
  • Product of India
 

Specifications

Compliance: ISO 385 Class A
Material: Borosilicate 3.3 Glass
Stopcock: Rotaflow PTFE Needle Valve
Tolerance: ±0.03mL (10mL) to ±0.10mL (100mL)

Delivery

We deliver nationwide across South Africa. Once your order is on its way, you'll receive a tracking link by email so you can follow its progress. If you need your order urgently or you're delivering somewhere hard to reach, contact our team before you check out and we'll help where we can.

Warranty

This product is covered against manufacturing defects in materials and workmanship for 30 days from the date of purchase.

This warranty does not cover: breakage caused by thermal shock (rapid heating or cooling); physical or mechanical damage, including drops, impacts, chips, and cracks from handling; damage from use outside the glassware's rated temperature, pressure, or chemical compatibility; damage from improper cleaning; normal wear such as scratching, staining, or discolouration; or unauthorised repair or modification.

To claim, contact SmartLabs within 30 days of purchase with proof of purchase and a description of the defect.

Our Promise

At SmartLabs, we only stock equipment we'd trust in our own labs and classrooms. If a product arrives faulty or doesn't match its description, let us know and we'll make it right, whether that's a replacement or a refund. Our goal is for every order to work exactly as it should, the first time.