Pyrex Test Tube with Black Cap 6 Inch Clear Glass Tube

The Pyrex Test Tube with Black Cap (6 inch) combines high-quality borosilicate glass with a secure snap-on black cap to deliver a dependable solution for sample storage, mixing, reaction testing, and general laboratory workflows. Because it uses Pyrex glass, this test tube offers thermal and chemical resistance, ensuring reliable performance in research labs, educational settings, clinical facilities, and industrial testing environments.

Furthermore, the clear tubular design enables unobstructed visual inspection of contents, while the black cap provides secure closure to protect samples from contamination and spillage. Whether you need to hold liquid reagents, dry powders, or biological samples, this test tube balances durability with everyday practicality.

Moreover, its suitable size and standard dimensions make it compatible with test tube racks and holders, thereby improving workspace organization and operational efficiency.

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🔎 Key Specifications

• Product Name: Pyrex Test Tube with Black Cap

• Tube Length: 6 inches (approx. 150 mm)

• Material: Borosilicate glass (Pyrex)

• Cap Type: Black snap-on cap (plastic)

• Transparency: Clear for easy observation

• Shape: Straight cylindrical tube

• Application: Sample handling, storage, reactions, testing

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✅ Key Features

• Pyrex Borosilicate Glass: Resists heat and chemical attack

• Clear Visual Window: Allows easy monitoring of contents

• Secure Black Cap: Helps protect samples from dust and spills

• Standard Laboratory Size: Fits common racks and holders

• Reusable & Washable: Designed for repeatable laboratory use

• Versatile Use: Suitable for biological, chemical, and general lab applications

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📌 Typical Applications

• Storage and transport of liquid or solid samples

• Mixing and reacting small volumes of reagents

• Educational and training laboratory use

• Clinical and diagnostic sample handling

• Chemical and biological research

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❓ Frequently Asked Questions (FAQ)

Q1: What makes this test tube different from regular glass tubes?
It uses Pyrex borosilicate glass, which offers higher chemical and thermal resistance than ordinary glass.

Q2: Is the black cap secure?
Yes. The snap-on black cap seals the tube and helps prevent contamination and minor spills.

Q3: Can I reuse the test tube?
Absolutely. With proper cleaning and handling, the tube and cap can be reused multiple times.

Q4: Will it fit standard test tube racks?
Yes. The 6-inch size conforms to common laboratory rack and holder dimensions.

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🛒 Buy from B.S.T Scientific Co.

Purchase the Pyrex Test Tube with Black Cap – 6 Inch from BST Scientific your trusted source for quality laboratory glassware and consumables.

Why choose BST Scientific?

• Authentic laboratory products with reliable quality

• Competitive B2B pricing for labs, institutions, and industries

• Easy ordering through our online scientific store

• Nationwide delivery and dedicated customer support

The Pyrex Test Tube with Black Cap offers durability, clarity, and secure sample handling, making it an indispensable tool for routine laboratory tasks and scientific workflows.