Safety & Compliance

Last updated: 20 August 2026

1. Scope and Purpose

This page provides general safety and compliance information for current products supplied by FXC Engineering GmbH, including flex-X-cell electrochemical cells, related components and accessories, and customised cell configurations.

This information does not replace the product-specific assembly instructions, operating information, quotation, technical documentation or safety instructions supplied with the respective Product.

Where product-specific documentation contains requirements or operating limits that differ from the general information on this page, the product-specific documentation shall take precedence.

2. Intended Use

FXC Products are intended for professional use in:

research, development, industrial electrochemical applications and higher-education laboratories.

Products shall be assembled and operated only by appropriately trained personnel or under the supervision of appropriately trained personnel.

FXC Products are not intended for private or household use.

The user is responsible for integrating the Product into a safe experimental or industrial system and for assessing hazards arising from the user's process, chemicals, gases, electrical equipment and other connected components.

3. General Safety Requirements

Before assembling, commissioning, operating, maintaining or opening an FXC cell, users shall observe the product-specific documentation and appropriate laboratory or industrial safety procedures.

In particular:

  • secure the cell and all connected equipment, such as pumps and electrical power supplies, against tipping over, falling or unintended movement;
  • inspect the cell and all components for damage, deformation or other visible defects before each commissioning and replace damaged components before use;
  • check the electrical configuration for possible short circuits before commissioning;
  • keep electrical contacts dry and free of grease or contamination;
  • ensure that all current-carrying cables, connectors and components are rated for the electrical current used in the application;
  • protect exposed electrical contacts against unintended contact;
  • disconnect the electrical power supply before assembly, disassembly, maintenance or modification of the cell;
  • fully depressurise the system before opening or disassembling the cell;
  • verify correct placement and alignment of flow frames, seals, O-rings and other components before operation;
  • perform a leak test before commissioning each fluid circuit, using water for liquid circuits or a suitable inert gas such as nitrogen for gas circuits, as appropriate for the application;
  • operate the cell only under appropriate supervision;
  • configure and operate the overall system so that a malfunction, leakage, electrical fault or other foreseeable failure does not create an unacceptable risk to persons, the environment or surrounding equipment;
  • do not alter the intended sequence or geometry of flow fields, fluid connections, electrical connections or other structural elements without prior consultation with FXC;
  • verify the chemical compatibility of all wetted materials with the intended chemicals, electrolytes, gases and operating conditions before use;
  • observe all product-specific pressure, temperature, electrical and material limits.

Improper assembly or operation may result in leakage of gases or liquids, electrical faults, sparking, ignition, damage to equipment or other hazardous conditions.

4. Pressure and Pressure Protection

Current standard FXC cells do not have a generally published maximum allowable operating pressure.

Unless a product-specific quotation or technical document expressly specifies an allowable operating pressure, FXC cells shall be operated without intentional additional system pressurisation.

The fact that an individual cell or component has been tested experimentally at a particular pressure does not establish that pressure as an approved maximum operating pressure.

The overall system must be designed so that unintended pressure build-up cannot exceed the limits of the respective Product and connected equipment.

Current standard cells do not incorporate an independent pressure-relief or overpressure-protection device. Where the user's setup may generate pressure, the user is responsible for providing suitable external pressure monitoring, pressure limitation and/or pressure-relief measures appropriate to the application.

Pressure-equipment requirements depend on the specific design, maximum allowable pressure, internal volume, fluids and configuration. Customised cells, pressurised configurations and in particular stacked systems may therefore require a separate pressure-equipment assessment.

5. Temperature Limits

The maximum permissible operating temperature of a cell depends on the complete Product configuration and is always determined by the component or material with the lowest applicable temperature limit.

Current material-specific reference limits include:

EPDM components: up to 80 °C
PTFE components: up to 120 °C
PMMA viewing window: up to 80 °C

These values are material-related limits and shall not be interpreted as a general temperature rating for every FXC cell.

Other components, materials, seals, electrodes, coatings or customised parts may require lower operating temperatures.

The applicable operating limit for the complete Product shall therefore be determined from the product-specific configuration and documentation.

6. PMMA Viewing Window

Where a cell is equipped with an optional PMMA viewing window, the window is not intended to be in direct contact with the process medium.

The PMMA viewing window must not be cleaned with solvents.

Clean the viewing window with water only.

Exposure of PMMA to unsuitable solvents or chemicals may cause cracking, degradation or material failure.

7. Chemicals, Electrolytes and Material Compatibility

FXC does not supply the chemicals, electrolytes, solvents or process gases used by the Customer unless expressly agreed otherwise.

FXC does not provide a general compatibility statement covering all possible chemicals, solvents, electrolytes or gases.

The user is responsible for verifying the compatibility of all wetted materials with the intended media and operating conditions unless FXC has expressly confirmed compatibility for the specific Product configuration.

Material compatibility may depend on factors including concentration, temperature, pressure, exposure time, electrical potential and interactions between different materials or media.

The user remains responsible for the safe storage, handling and use of chemicals and gases employed in the user's process and for compliance with the applicable safety data sheets and workplace-safety requirements.

8. Electrical Safety

Current standard FXC electrochemical cells contain passive electrical contacts and current collectors.

The electrochemical cell itself is intended for operation with direct current and a maximum voltage of 50 V DC, unless a lower product-specific limit applies.

The user is responsible for ensuring that external power supplies, potentiostats, cables, connectors and other electrical equipment are suitable for the intended current, voltage and operating conditions.

Planned electrically active accessories, such as heating equipment or sensor systems, are not covered by the current compliance statements on this page. Such products will be subject to a separate product-specific compliance assessment before being placed on the market.

9. Explosive Atmospheres

Current FXC Products are not ATEX-certified unless expressly stated otherwise in product-specific documentation.

No general claim is made that FXC Products are suitable for operation as equipment intended for use in potentially explosive atmospheres.

Where the Customer's process involves hydrogen, oxygen, flammable gases, volatile solvents or other substances capable of creating an explosive atmosphere, the Customer is responsible for assessing the complete installation and implementing the required protective measures.

The presence of such substances in an electrochemical process shall not be interpreted as an ATEX certification or approval of the Product.

10. CE Marking and Product-Specific Compliance

CE marking is applied only where required by the legislation applicable to the respective Product and configuration.

Current passive FXC cell Products are not CE-marked.

No general statement that a Product is exempt from CE-related legislation solely because it is used for research shall be inferred from this page.

The applicability of EU product legislation depends on the specific design, intended use and technical characteristics of the respective Product.

Electrically active accessories, stacked systems, customised products and other future configurations may therefore be subject to different regulatory requirements and shall be assessed separately.

FXC does not currently make a general portfolio-wide claim of RoHS compliance or REACH compliance. Product-specific information may be provided where such an assessment has been carried out.

11. Product Identification and Traceability

FXC cells are marked with an identification corresponding to the respective FXC order number.

This identification allows the Product to be associated with the relevant order and product configuration in FXC's documentation.

The identification should not be removed or made illegible during the service life of the Product.

12. Product Documentation

FXC supplies assembly information, including an exploded assembly drawing, and operating and safety information with its Products.

The documentation supplied with the respective Product shall be followed during assembly and operation.

Users shall ensure that personnel operating or maintaining the Product have access to the applicable documentation.

FXC may update product documentation as Products and safety information develop. Where there is uncertainty regarding the applicable documentation for a particular Product, please contact FXC and provide the corresponding order number.

13. Customised Products

Operating limits, material compatibility and the applicable compliance status may differ for customised Products.

For customised Products, the product-specific quotation, technical documentation and safety instructions take precedence over general information provided on this website.

Operating conditions or compliance statements applicable to a standard Product shall not automatically be assumed to apply to a customised configuration.

14. Modifications and Third-Party Components

Changes to the Product, its flow configuration, electrical connections, seals, structural components or other design features may affect safety, sealing performance, material compatibility and regulatory compliance.

Unauthorised modifications are therefore made outside the Product configuration assessed and supplied by FXC.

The Customer is responsible for assessing the effects of third-party components, modifications or integration into a larger system unless FXC has expressly approved the respective configuration.

15. Returns, Service and Decontamination

Products returned to FXC for inspection, repair, service or other purposes must be fully drained, cleaned and decontaminated before shipment.

All hazardous chemicals, electrolytes, gases, biological agents and other hazardous substances must be removed.

FXC may require written confirmation describing the substances previously used with the Product and confirming that the Product has been adequately decontaminated.

FXC reserves the right to refuse acceptance or handling of a Product where contamination may present a risk to its employees, carriers or other persons.

Customers should contact FXC before returning a Product in order to receive the applicable return and safety instructions.

16. Safety and Compliance Enquiries

For questions concerning safe operation, product documentation, material compatibility or product-specific compliance information, please contact:

FXC Engineering GmbH
Forckenbeckstraße 50
52074 Aachen
Germany

Email: info@fxc-engineering.com

Please provide the Product type and FXC order number where available so that we can identify the relevant configuration.