Industry Insights AseanVolt 03 Apr 2026 views ( )

Don't Let Vague Contracts Cost You: The FAT/SAT Checklist Every Equipment Buyer Needs

In global B2B procurement, especially for capital equipment, a vague acceptance clause is a direct invitation for cost overruns, project delays, and strained supplier relationships. The Factory Acceptance Test (FAT) and Site Acceptance Test (SAT) are your primary contractual tools to verify performance before final payment. Leaving these standards undefined is a high-risk strategy. Here are the critical items that must be explicitly detailed in your contract's FAT/SAT section.

1. Define Clear, Measurable Performance Criteria. Move beyond subjective terms like "runs properly." Specify exact metrics: throughput (units/hour), accuracy (tolerance in mm), efficiency (energy consumption per cycle), and output quality standards. Reference international or industry-specific standards (e.g., ISO, ANSI, ASME) where applicable. This creates an objective baseline for pass/fail judgment.

2. Detail the Test Protocol and Environment. The contract must outline the exact test procedures, sequence, and duration. For FAT, specify the factory conditions (power supply, test materials). For SAT, define site readiness responsibilities—who provides utilities, foundation, and auxiliary connections? Ambiguity here leads to finger-pointing during commissioning.

3. Specify Roles, Witnesses, and Documentation. Clearly state which parties (buyer, supplier, third-party inspector) must be present to witness tests. Define the required deliverable documents: signed test reports, calibration certificates, updated as-built drawings, and complete operation & maintenance manuals. Stipulate that approval is contingent on receiving these documents.

4. Outline Non-Conformance and Remediation Procedures. What happens if the equipment fails? The contract must define the process: time allowed for remediation, who bears the cost of re-testing, and at what point you can reject the equipment and seek remedies. Include provisions for liquidated damages for delayed performance post-failure.

5. Link Acceptance to Payment Milestones. This is crucial for cash flow and leverage. Structure payments so a significant portion (e.g., 10-25%) is withheld until successful SAT completion. Clearly state that "Final Acceptance" occurs only after satisfactory SAT and submission of all contractual deliverables, triggering the release of final payment and start of the warranty period.

Procurement Risk Mitigation: Treat FAT/SAT terms as non-negotiable. Involve your engineering and maintenance teams in drafting these requirements. For high-value imports, consider hiring a third-party inspection agency to witness the FAT on your behalf. This upfront diligence in contract writing is your most effective insurance against defective equipment and protracted disputes, ensuring your sourcing investment delivers the intended operational value.