Functional Safety Services
We supports asset owners in ensuring safety instrumented systems perform reliably to protect people, the environment & assets throughout the safety lifecycle.
The PISB Approach
Your team works safer and more efficiently with manuals they can actually understand.
Identify
Analyze
Evaluate
Recommend
Verify
Ensuring safety systems perform when demanded
Functional Safety is critical in high-risk industries such as oil & gas and process sectors. It is not only a regulatory requirement, but a responsibility to protect people, the environment, and assets.
At Pure Integrity, we provide end-to-end Functional Safety services in accordance with IEC 61511, supporting the full safety lifecycle — from hazard identification and SIL determination through design, verification, validation, and ongoing operational assurance.
Our Functional Safety Capabilities
Safety Requirements Specification
Realization, Design, FAT & Validation
Operation, MOC & Decommissioning
Our Core Approach
Define risk & safety needs
(The Foundation)
Establishing the basis through hazard studies and SIL determination.
Translate Into Engineering Requirements
(The Specification)
Developing the SRS and defining SIF performance criteria.
Assure Design Compliance
(The Verification)
Performing SIL verification and design & software assessments.
Validate System Performance
(The Validation)
Sustain Safety In Operation
(The Assurance)
Johan Andak is a process safety and operations specialist with decades of experience in the oil and gas, petrochemical, and energy sectors. As Managing Director of Pure Integrity, he provides strategic and technical leadership in process safety, functional safety, and risk assessment, supporting major projects across Southeast Asia, the North Sea, West Africa, Brazil, and Australasia.
Education & Certificate
Bachelor’s Degree in Chemical Engineering
Universiti Teknologi PETRONAS (UTP) Certificate
Certified Functional Safety Engineer
(Safety Instrumented Systems) TÜV Rheinland
Industries We Support
Our Process Safety services are suitable for organisations operating hazardous processes, complex systems & safety-critical facilities.
Strengthen Your Functional Safety Assurance
Work with Pure Integrity to define, verify & sustain safety instrumented systems for dependable risk reduction across the asset lifecycle.