Gas detectors are essential safety equipment utilised in various sectors, such as manufacturing, confined space operations, marine, and oil and gas. These devices help detect toxic, combustible, and hazardous gases to prevent accidents, injuries, or fatalities. However, a gas detector’s calibration directly affects how effective it is. Failing to calibrate regularly increases the risk of inaccurate readings and compromises workplace safety.
Learn how often you should conduct gas detector calibration in Singapore, allowing you to abide by regulatory and industry standards.
Manufacturer Recommendations and Industry Standards
Most gas detector manufacturers recommend calibration intervals ranging from daily bump tests to full calibration every 30 to 180 days, depending on the type of gas detector and its application. Portable gas detectors used for confined space entry or leak detection typically require more frequent calibration than fixed gas detection systems. Singapore-based industries generally follow international standards such as ISO, IEC, and recommendations by the Singapore Standards Council. However, users must also consider site-specific factors, including the frequency of use, type of gases monitored, environmental conditions, and the criticality of accurate readings. Following the manufacturer’s calibration schedule is the minimum requirement for companies seeking a reliable gas calibration service. Failing to comply may void warranties and leave companies exposed to compliance risks and legal liabilities under Singapore’s Workplace Safety and Health Act.
Environmental and Operational Factors Affecting Calibration Frequency
Environmental conditions such as high humidity, temperature fluctuations, and exposure to harsh chemicals can accelerate sensor drift in gas detectors. Frequent exposure to target gases, contaminants, or dust particles also affects sensor stability and lifespan. Industrial facilities such as petrochemical plants, shipyards, and wastewater treatment plants are typical users of gas detectors and typically face challenging environments that require more frequent calibration. If a detector is used daily or in extreme conditions, calibration may be necessary monthly or even more frequently. A quarterly calibration might suffice for facilities with less demanding conditions. However, relying solely on default schedules without considering the actual working environment is a common mistake. A gas detector calibration provider can assess these environmental factors and recommend a tailored calibration frequency, ensuring reliability without unnecessary over-servicing.
ALSO READ: Should you Rent or Buy a Portable Gas Detector?
Importance of Regular Calibration
Calibration ensures the gas detector’s sensors are providing accurate readings within the specified tolerance limits. Over time, sensors degrade, causing false alarms or, worse, failure to detect harmful gases. Regular calibration corrects sensor drift and maintains accuracy, reducing the risk of hazardous exposure. The city-state’s authorities require industrial workplaces to comply with safety standards, which often include documented proof of calibration. Using a certified detector gas calibration service ensures that calibration records are properly maintained and audit-ready. Additionally, some industries and clients demand third-party certified calibration reports as part of tender requirements, safety audits, or insurance policies. Neglecting calibration may result in safety incidents, costly project delays, or penalties for non-compliance.
Recommended Calibration Intervals for Singapore-Based Industries
While there is no universal calibration interval applicable to all industries, common best practices include daily bump testing and full calibration every 30 to 90 days for portable gas detectors, depending on the severity of the working conditions. Fixed gas detection systems may be calibrated every 90 to 180 days, but this should be adjusted if sensors are exposed to harsh or variable environments. Calibration intervals should be shorter for industries dealing with highly toxic or flammable gases. Engaging an experienced gas detector calibration provider is advisable to determine the most appropriate interval based on your site’s risk profile, operating environment, and equipment specifications.
Conclusion
Regular calibration is required in many industrial environments, where gas detection is essential to maintaining worker safety. Businesses must set up an appropriate calibration plan that fits their environment, operations, and regulatory requirements. Maintaining detector accuracy, adhering to rules, and protecting assets and personnel depends on working with a reputable detector gas calibration service.
Visit Ansac to get expert advice on setting up a customised calibration programme for your facility.