What is BS EN ISO 15848-1:2016?

BS EN ISO 15848-1:2016 is an international standard that sets requirements and test methods for fugitive emissions of valve stem packings in control and isolation valves. It provides guidance for the testing and qualification of these packings to ensure leakage rates are minimized.

The Importance of Fugitive Emissions Control

In many industries, including oil and gas, petrochemical, and pharmaceutical, controlling fugitive emissions is crucial for safety, environmental, and economic reasons. Fugitive emissions refer to unintended leaks of gases or liquids from valves, pumps, and other equipment. These leaks can contribute to air pollution, health risks, and product losses, making it essential to establish effective control measures.

Valve stem packings play a critical role in preventing fugitive emissions by creating a seal between the valve stem and bonnet. However, these packings may wear over time or fail under certain operating conditions, leading to potential leaks. BS EN ISO 15848-1:2016 addresses this issue by providing guidelines for manufacturers to develop reliable and low-emission packing solutions.

Requirements and Test Methods

BS EN ISO 15848-1:2016 specifies general requirements for type testing, production testing, and surveillance of valve stem packings. The standard classifies packings into three categories based on their allowable leakage rates: A, B, and C. Category A has the strictest requirements with the lowest acceptable leakage rates.

To determine the emission levels, the standard outlines various test methods, including the helium leak test, defined by ANSI/ISA-TR81.00.02-2002. This method measures the concentration of tracer gas (helium) outside the fitting being tested. The lower the gas concentration, the better the packing's sealing performance.

Benefits and Compliance

Complying with BS EN ISO 15848-1:2016 offers several benefits for manufacturers, end-users, and regulators. For manufacturers, it provides a standardized approach to designing, testing, and improving valve stem packings, enhancing product quality and reliability. End-users can have confidence in the performance of compliant packings, knowing they meet stringent international standards.

In addition, compliance with the standard helps reduce fugitive emissions, leading to improved workplace safety, environmental protection, and cost savings. It demonstrates a commitment to sustainability and responsible production practices, which is increasingly important in today's global marketplace.

To ensure compliance, manufacturers should establish a comprehensive quality management system that includes process control, traceability, and regular audits. Third-party certification bodies can provide independent verification of compliance with BS EN ISO 15848-1:2016, adding credibility and trust to their products.