The containers for transporting histological samples with 4% formaldehyde are designed to ensure maximum safety and practicality in the preservation and transport of biological samples. With a capacity of 30 ml and a package of 100 pieces, these disposable containers are ideal for laboratories, clinics, and healthcare facilities that require an effective method for sample management.

Main Features

• Pre-filled with 4% buffered formaldehyde: reduces the risk of exposure for the operator, eliminating the need for transfers.


• Screw cap: ensures a secure and airtight closure, preventing formaldehyde leaks.


• Compliant labeling: each container is equipped with a label in accordance with current regulations for easy identification and management.

Advantages of 4% Formaldehyde

4% formaldehyde, also known as 10% buffered formalin, is one of the most widely used fixatives in histopathology. Its properties include:

• Inactivation of autolytic enzymes: prevents tissue putrefaction.


• Structural stability: provides stability to the chemical constituents of protoplasm.


• Rapid penetration: formaldehyde penetrates tissues quickly, ensuring gradual hardening.

Composition and Technical Specifications

Each container contains:

• Formaldehyde: 3.80% ÷ 4.40%


• Methanol: < 0.1%


• Sodium phosphate dibasic


• Sodium phosphate monobasic


• Deionized water

The buffer molarity is 75 millimoles/liter with a pH of 7 ± 0.1. The recommended volumetric ratio between the sample and the fixative is approximately 1:15-20, with a maximum sample thickness of 1 cm.

Instructions for Use

To ensure proper use of the containers, carefully follow the instructions:

Container with Screw Cap

1. Unscrew the cap and introduce the sample, avoiding formaldehyde spills.


2. Replace the cap, correctly aligning the threads.


3. Screw tightly to ensure a seal.

Precautions during Transport

• Transport the container carefully, avoiding spills and jolts.


• Use a secondary container for added safety.


• Always wear personal protective equipment (PPE) during opening and closing operations.

Warnings and Safety

It is essential to follow guidelines to ensure safety when using formaldehyde. Improper closure of containers can lead to formalin leaks. Carefully read the information on the label and consult the safety data sheet for information on risks and precautionary measures.

The containers for transporting histological samples with 4% formaldehyde are a product intended for professional users, designed to ensure maximum safety and efficiency in managing biological samples.