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As histopathology laboratories worldwide continue to upgrade their facilities, put-through grossing stations with integrated formalin extraction systems have become a critical component of modern pathology laboratory projects.

Many laboratories built more than a decade ago face similar challenges: aging drainage systems, outdated ventilation designs, and formalin exhaust systems that discharge directly to the roof without proper treatment. Under these conditions, adopting an EPC (Engineering, Procurement, and Construction) turnkey approach is the most effective way to achieve safety, compliance, and long-term operational reliability.

Challenges in Legacy Grossing Laboratories

Traditional built-in grossing stations often develop the following issues over time:

Severely deteriorated drainage pipelines that are difficult to maintain

Formalin vapors exhausted directly to the roof with limited containment or control

Poor airflow organization, increasing staff exposure risk

Inability to meet current occupational health and laboratory safety regulations

These issues increase operating costs and pose long-term risks to personnel health and regulatory compliance.

Why Put-Through Grossing Stations Are the Preferred Upgrade Solution

Put-through grossing stations are specifically designed for histopathology workflows, enabling a clear separation between clean and non-clean zones while improving operational efficiency.

Key advantages include:

Physical separation between tissue handling and waste removal areas

Reduced cross-contamination risk through optimized workflow design

Easy integration with ventilation, drainage, and safety systems

Compliance with international pathology laboratory standards

When equipped with an integrated formalin extraction system, put-through grossing stations significantly reduce airborne formaldehyde concentration, enhancing user safety.

Integrated Formalin Extraction System: The Core Safety Feature

Formalin is essential for tissue fixation in histopathology, but it is also a hazardous chemical. Modern grossing stations must therefore be equipped with efficient formalin extraction systems.

Key system functions include:

Capturing formalin vapors directly at the source (downdraft or rear exhaust airflow)

Maintaining negative pressure at the workstation to prevent vapor leakage

Preventing formalin spread to adjacent laboratory areas

Safe discharge after filtration or adsorption treatment

Compared to traditional direct roof exhaust systems, integrated extraction systems provide superior control, safety, and regulatory compliance.

Value of the EPC Turnkey Delivery Model

In laboratory renovation projects, supplying equipment alone rarely solves systemic problems. The EPC model ensures full integration from design through commissioning.

1. Engineering & Design Phase

Laboratory layout optimization

Ventilation and airflow calculations

Drainage system redesign

Electrical and control system integration

2. Equipment Manufacturing & Procurement

Customized put-through grossing stations

Integrated formalin extraction systems

Corrosion-resistant structural materials

Compliance with project and regulatory requirements

3. Installation & Construction Phase

Removal of existing grossing stations

On-site installation and system integration

Ductwork, drainage, and electrical connections

Coordinated construction to minimize laboratory downtime

4. Commissioning & Validation

Airflow and extraction performance testing

Formalin containment verification

Functional and safety testing

Delivery of documentation to support audits

Application Areas

This EPC solution is widely applicable to:

Pharmaceutical pathology laboratories

Hospital histopathology departments

Third-party diagnostic laboratories

Research and academic laboratories

After upgrading, laboratories achieve higher safety levels, extended service life, and improved readiness for future expansion.

Long-Term Maintenance and Technical Support

Professional EPC providers typically offer:

Preventive maintenance programs

Formalin extraction system performance testing

Filter replacement services

Technical support for regulatory audits

These services ensure stable and safe operation throughout the laboratory’s lifecycle.

Conclusion

In modern histopathology environments, upgrading to put-through grossing stations with integrated formalin extraction systems is no longer optional—it is essential for safety and compliance.

Through an EPC turnkey delivery model, laboratories can eliminate legacy risks and establish a modern, regulation-compliant grossing environment, ensuring long-term operational safety and efficiency.