Industry Insights AseanVolt 30 Mar 2026 views ( )

Don't Get Burned by Vague Contracts: The FAT/SAT Checklist Every Buyer Needs

In global B2B procurement, especially for high-value industrial equipment, a contract is only as strong as its acceptance criteria. Vague or missing Factory Acceptance Test (FAT) and Site Acceptance Test (SAT) protocols are a leading cause of project delays, cost overruns, and disputes. Defining these standards upfront is not just technical diligence—it's fundamental risk management for your supply chain.

The Core Purpose: FAT vs. SAT
Think of FAT as your pre-shipment quality gate at the supplier's facility. It verifies that the equipment is built and functions to spec before it enters the logistics stream. SAT is your final verification after installation at your site, confirming performance under your actual operating conditions. A robust contract clearly separates the scope, criteria, and responsibilities for each.

Non-Negotiable Items for Your FAT/SAT Protocol
Your technical appendix must detail:

1. Performance Specifications & Tolerances: Go beyond model numbers. Define exact output, efficiency, speed, capacity, and energy consumption metrics. Specify acceptable tolerances (e.g., ±2%). Include raw material or input specifications for the tests.

2. Test Conditions & Methodology: Document the ambient conditions (temperature, humidity), utilities (voltage, air pressure), and test duration required. Specify *how* to measure each parameter—the instruments and standards to be used.

3. Documentation Review: Stipulate that FAT approval is contingent on receiving complete documentation packs: as-built drawings, certified material reports, maintenance manuals, and software licenses. This is crucial for long-term maintenance and compliance.

4. Non-Conformance & Remediation Process: Define the process for failed tests. What is the timeline for the supplier to propose a corrective action plan? Who bears the cost of re-testing? Clarify this to avoid paralysis.

5. Roles, Signatures, and Conditional Payment: Name the authorized representatives from both sides who must witness and sign the test reports. Link a significant, defined portion of the payment (e.g., 20-30%) to the successful completion of SAT, not just FAT.

Procurement and Logistics Implications
A clear FAT is your best defense before shipping. Passing FAT should be a condition for arranging freight, as it minimizes the risk of receiving unusable equipment and incurring demurrage or storage fees. For SAT, ensure the contract specifies supplier responsibilities for installation support, commissioning, and operator training. Your Incoterms must align: if you are responsible for shipping (e.g., FCA), you assume more risk between FAT and SAT, making the initial inspection even more critical.

Risk Mitigation Checklist
- Supplier Selection: Qualify suppliers on their historical adherence to detailed FAT/SAT protocols. Request sample reports from past projects.
- Compliance: Ensure test standards reference recognized industry norms (e.g., ANSI, ISO).
- Contingency: Build buffer time into your project schedule for potential re-testing.
- Legal Review: Have your counsel ensure the acceptance clauses are enforceable and tied to clear remedies.

Ultimately, investing time in defining FAT/SAT criteria is an investment in project success. It transforms subjective expectations into objective, measurable milestones, protecting your budget, timeline, and operational readiness. Never let a supplier tell you, "We'll figure out the tests later." The details belong in the contract, before the first dollar is paid.