Quick Answer: NFPA 36 Section 1.5 allows facilities to meet the intent of code requirements through an equivalency approach when strict compliance is impractical. For solvent extraction operations, the best equivalency alternative is one that demonstrably controls fire, explosion, and impairment risks to an equal level.

For facilities building out a long-term compliance framework, it also helps to think beyond the submittal itself and into the full lifecycle of fire protection servicing, where inspection, testing, maintenance, and documentation all support the credibility of an equivalency approach.

What NFPA 36 Section 1.5 Equivalency Means for Solvent Extraction

NFPA 36 provides prescriptive fire safety requirements for processes involving flammable and combustible materials. Section 1.5 addresses a path for NFPA 36 equivalency alternative compliance extraction when a facility cannot fully meet a specific requirement due to engineering constraints, construction limitations, or operational realities. The equivalency concept does not reduce safety expectations. It requires the facility to demonstrate that the proposed alternative provides an equivalent level of protection, consistent with the intent of the standard.

For solvent extraction, the safety drivers are usually similar across facilities: control of ignition sources, limitation of flammable vapor accumulation, reliable detection and alarm, effective fire suppression where required, and maintaining safe conditions during normal operation, start up, shutdown, cleaning, and upset events.

Start With Intent: How Fire Risk Is Measured in Equivalency Reviews

An equivalency submission should align the alternative with the hazards and performance goals that the original requirement is intended to address. In practice, reviewers look for a technical narrative supported by evidence. The strongest submittals tie each design decision to fire and explosion prevention and mitigation.

Common intent targets in solvent extraction

• Limiting flammable vapor release from tanks, extractor systems, transfer lines, vents, and solvent handling areas.
• Reducing ignition likelihood through electrical classification, temperature limits, bonding and grounding, and control of hot work and mechanical sparking sources.
• Providing prompt detection and response using detectors, alarm notification, and documented operating procedures.
• Ensuring suppression effectiveness where hazards require suppression or control of fire growth.
• Maintaining tenability and egress viability for occupants and responders.

Where equivalency discussions fail

• Alternatives that focus only on cost or schedule instead of hazard outcomes.
• Missing documentation of equivalency calculations, testing, or performance evidence.
• Inadequate consideration of cleaning cycles, filter changes, solvent drain events, and maintenance modes.
• Assuming “installed” performance rather than “maintained” performance with inspection, testing, and maintenance controls.

Practical Compliance Challenges in Solvent Extraction Plants

Solvent extraction operations often involve concentrated flammable solvent vapors, multiple process vessels, and frequent handling events. These conditions intensify the need for robust impairment control and lifecycle reliability. In commercial and industrial environments, inspectors also evaluate whether safety systems remain effective over time, not only during initial installation.

Typical technical challenge areas

• Vapor management and ventilation control: Maintaining airflow rates and control sequences as dampers, filters, and exhaust components age.
• Detection placement and coverage: Ensuring detectors track the release patterns from extractor lids, solvent transfers, and drainage points.
• Suppression system design basis: Matching extinguishing agent type and coverage to the hazard geometry and expected fire scenarios.
• Intrinsically safe and electrical integration: Preserving equipment integrity during modifications and vendor replacements.
• Operational discipline: Procedures for venting, purging, and cleaning that prevent unsafe vapor conditions.

These are precisely the areas where an equivalency alternative compliance extraction strategy must be engineered to a measurable performance outcome, supported by test plans and maintenance requirements.

How to Build a Strong Equivalency Alternative for Extraction Operations

A successful equivalency pathway typically includes a hazard basis, a proposed alternative design, evidence of performance, and a maintenance and inspection framework. The goal is to show that the alternative achieves the same or better protection level across credible fire and explosion scenarios.

Step 1: Document the hazard and credible scenarios

Facilities should map the solvent extraction process and identify release points, ignition sources, and escalation routes. This typically includes start up, shutdown, abnormal operating conditions, and maintenance activities such as filter changes or line isolation.

Step 2: Define performance criteria, not just equipment swaps

Equivalency should address performance outcomes such as time to detect, time to alarm, agent discharge coverage, ventilation effectiveness, and system reliability. A well written equivalency alternative should specify how the system behaves under normal and upset conditions.

Step 3: Provide evidence of equivalent performance

Acceptable evidence may include design calculations, manufacturer documentation, commissioning results, test reports, or documented field performance metrics. Reviewers generally prefer evidence that demonstrates the alternative behaves as intended over time.

Step 4: Lock in inspection, testing, and maintenance requirements

Equivalency is not complete until the facility commits to lifecycle verification. This includes inspection schedules, functional testing frequency, acceptance criteria, and corrective action triggers. For commercial facilities, this should integrate with the facility’s documented fire protection program and management of change practices.

Kord Fire Protection supports facilities by developing practical compliance and maintenance plans for fire protection systems, coordinating testing and inspections, and helping teams reduce the gap between “as installed” and “as maintained.” This approach helps facilities avoid recurring deficiencies that can undermine an equivalency determination.

If your team is also refining suppression strategy around specialized industrial hazards, industrial fire suppression system design is a useful companion topic because it connects hazard-specific engineering decisions with long-term maintenance planning.

Inspection and Maintenance: The Non Negotiable Part of Equivalency

Even when an alternative is approved, ongoing compliance depends on disciplined maintenance. Common failure points include neglected detector calibration, ventilation control drift, incomplete testing after system modifications, and delayed repairs after alarm or supervisory trouble events.

High impact maintenance practices for extraction hazards

• Commissioning verification after any process or electrical changes that affect detection, shutdown, or suppression logic.
• Documented functional testing that confirms alarm pathways, control panel behavior, and notification coverage.
• Ventilation monitoring including periodic checks of damper position feedback, airflow performance, and control sequence integrity.
• Clear maintenance workflows for solvent handling systems to prevent unsafe residual vapor conditions.
• Rapid corrective actions for supervisory signals, impaired devices, or repeated test failures.

If the facility needs guidance on aligning fire protection maintenance with ongoing risk management, Kord Fire Protection can help establish a defensible, inspection ready program.

FAQ: NFPA 36 Equivalency Alternative Compliance Extraction

Next Steps: Get a Defensible Equivalency Plan

For solvent extraction projects, an equivalency alternative compliance extraction strategy must be engineered, documented, and maintained to a measurable safety outcome. Kord Fire Protection can help your team translate NFPA 36 Section 1.5 intent into an approval ready submittal framework and an inspection ready maintenance program. Contact Kord Fire Protection to start a gap assessment and build an equivalency plan your authorities will understand and trust.