Borosilicate Test Tube Without Rim UNE 400319

Rimless borosilicate glass test tube conforming to UNE 400319. A standard item in any laboratory — resistant to heat, reagents and heavy daily use.

Specifications

• Material: Borosilicate glass
• Standard: UNE 400319
• Rim: Rimless
• Chemical resistance: Compatible with common laboratory acids, bases and solvents
• Thermal resistance: Suitable for direct flame heating and thermostatic bath use

Applications

Small-scale reactions, identification tests, microbiological cultures and teaching practicals. The rimless format is the most widely used in general laboratory work — grips securely with wood or metal clamps.

Standard in university laboratories, research centres, quality control and the pharmaceutical industry.

Technical Data

• Material: Borosilicate glass
• Reference standard: UNE 400319
• Rim type: Rimless
• Closure: Compatible with standard rubber or cork stoppers

Usage Notes

When heating over a flame, tilt the tube and agitate gently — never point the open end towards people. Borosilicate tolerates moderate thermal shock, but avoid transferring directly from open flame to cold water without transition. Autoclavable for sterilisation in microbiological applications.