BS EN 4707:2020

Overview

BS EN 4707:2020 outlines the requirements for the acid pickling of aluminium and aluminium alloys in the aerospace sector. This standard is particularly significant as it addresses the need to eliminate the use of hexavalent chromium, a substance known for its hazardous properties. The standard provides a framework for ensuring that acid pickling processes are conducted safely and effectively, promoting both environmental sustainability and worker safety.

Key Requirements

The standard specifies the following key requirements for the acid pickling process:

• Material Specifications: The standard details the types of aluminium and aluminium alloys that can be treated using acid pickling methods.
• Process Parameters: It outlines the necessary parameters for the acid pickling process, including temperature, concentration of acids, and duration of treatment.
• Health and Safety Guidelines: BS EN 4707:2020 includes comprehensive guidelines to mitigate risks associated with the handling of chemicals and the operation of pickling equipment.
• Quality Control Measures: The standard mandates regular monitoring and testing of the pickling solution to ensure compliance with specified performance criteria.

Implementation Benefits

Adopting BS EN 4707:2020 offers several practical benefits for manufacturers in the aerospace industry:

• Enhanced Safety: By eliminating hexavalent chromium, companies can significantly reduce health risks for employees and comply with stringent health regulations.
• Improved Environmental Compliance: The standard supports manufacturers in meeting environmental legislation, thereby reducing the risk of penalties and enhancing corporate responsibility.
• Consistent Quality: Implementing the guidelines ensures a consistent quality of surface treatment, which is critical for the performance and longevity of aerospace components.
• Market Competitiveness: Compliance with BS EN 4707:2020 can enhance a company’s reputation, making it more appealing to clients who prioritise sustainability and safety.

Compliance Value

Compliance with BS EN 4707:2020 is not merely a regulatory requirement; it is a strategic advantage. By adhering to this standard, manufacturers can:

• Demonstrate Commitment: Show stakeholders a commitment to safety and environmental stewardship, which can enhance brand loyalty and customer trust.
• Facilitate Audits: Simplify the audit process by having clear, documented procedures that align with industry best practices.
• Mitigate Risks: Reduce the likelihood of accidents and associated costs through the implementation of rigorous safety protocols.

In conclusion, BS EN 4707:2020 serves as a critical guideline for the aerospace industry, ensuring that acid pickling processes are conducted safely and effectively without the use of hazardous substances. Its implementation not only supports compliance with health and environmental regulations but also enhances the overall quality and safety of aerospace components.