Description
Safety & Maintenance Protocol
- Thermal Safety: Always ensure the wooden handle is held at the far end to maximize distance from the heat source.
- Inspection: Before each use, inspect the brass jaws for any signs of chemical erosion or misalignment that could compromise the grip.
- Cleaning: Wipe down brass components with a dry cloth after use to prevent the accumulation of corrosive chemical residues.
Proper Technique for Test Tube Heating:
- Secure the Tube: Slide the brass collar toward the jaws to firmly lock the test tube. Ensure the clamp is positioned near the neck of the tube.
- Angled Heating: Always point the mouth of the test tube away from yourself and others to prevent injury from sudden boiling or “bumping”.
- The Thermal Barrier: Grip only the wooden handle; the hardwood is a natural insulator that prevents heat transfer from the brass jaws to your hand during prolonged exposure to a flame.
- Uniform Distribution: Move the tube continuously through the flame to ensure even heat distribution and prevent localized stress on the glass.
| Material | Handle | Pack of | SKU | Enquiry |
|---|---|---|---|---|
| Brass | Wooden | 6 | TTHWH-BR-06 | Enquire Now |
| Plated Steel | Wooden | 6 | TTHWH-PS-06 | Enquire Now |
Frequently Asked Questions (FAQs)
Why is brass used for the jaws instead of standard steel?
Brass is a superior material for laboratory heating tools because it offers high corrosion resistance against common lab reagents and excellent durability under repeated thermal cycles. Unlike cheaper steel alternatives, brass is less likely to rust or degrade when exposed to the moisture and chemical vapors often present during test tube heating.
Is the wooden handle safe for use over high-heat Bunsen burner flames?
Yes. The hardwood handle is a natural thermal insulator designed to remain cool to the touch even when the brass jaws are holding boiling solutions. To ensure safety, always grip the holder at the far end of the wooden handle to maximize your distance from the heat source and prevent the wood from coming into direct, prolonged contact with the flame.
What is the maximum size of a test tube this holder can secure?
This holder features a spring-loaded sliding lock mechanism that accommodates standard laboratory test tubes ranging from 10mm to 25mm in diameter. The sliding brass collar allows you to adjust the tension, ensuring a firm, non-slip grip on both small ignition tubes and larger boiling tubes.
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