• Burette Glass, PTFE Rotaflow Needle Valve - Class A

Burette Glass, PTFE Rotaflow Needle Valve - Class A

BTRT10ML-CLA

  • Lab and Research

Vendor: SmartLabs

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 gives smooth, leak-proof control without needing lubrication, since the PTFE needle is highly resistant to chemical attack.

They conform to ISO 385 Class A standards, for high precision in professional laboratory work, and are made from heavy-duty Borosilicate 3.3 glass for excellent thermal and chemical durability. The Rotaflow valve is a screw-thread stopcock with a PTFE needle for fine flow control; unlike glass stopcocks, these don't "freeze" and need no grease. They're often supplied with a batch certificate or individual certificate to confirm accuracy and traceability.

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, for the lowest possible error limit in high-stakes analytical work
  • Material: High-grade Borosilicate 3.3 Glass, resistant to chemical corrosion and thermal shock
  • Graduations: Durable Blue (amber on request) enamel graduations, for high contrast against dark or coloured titrants
  • Stopcock Type: Rotaflow Key with a PTFE Needle Valve, a screw-thread design for drop-by-drop precision without the valve seizing or needing 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.