Know your ammonia charge — every second,
not once a year.
NH3Edge combines deep PSM/RMP compliance expertise with continuous real-time inventory monitoring. Stop relying on a static number when your operating charge shifts every hour.
NH3EdgeLIVEAmmonia compliance technology built around inventory
NH3Edge is an ammonia refrigeration compliance and monitoring company. We help industrial facilities accurately determine, continuously track, and stay compliant with their ammonia inventory — the single most critical number under OSHA PSM and EPA RMP regulations. Whether you need a one-time compliance assessment or ongoing real-time visibility, NH3Edge was built specifically for this problem.
Real-Time Ammonia Inventory
Continuous, component-level ammonia charge tracking using thermodynamic models — so you always know exactly how many pounds are in your system, not just once a year.
OSHA PSM & EPA RMP Compliance
Expert program development, audits, PHA facilitation, and documentation for facilities operating near the 10,000 lb regulatory threshold under 29 CFR 1910.119 and 40 CFR Part 68.
Purpose-Built Monitoring Technology
Industrial IoT hardware designed specifically for ammonia refrigeration systems — not generic sensors repurposed for the application. Integrated directly with your PLCs and control systems.
The Hidden Compliance Risk
Your static inventory says 9,005 lb.
But what does it say right now?
Only 995 lb separates this facility from mandatory PSM & RMP compliance. A warm night can shift that much refrigerant.
Temperature Shifts
As ambient temperature rises, condensers push more liquid to high-side receivers. Hundreds of pounds can migrate between vessels overnight.
Load Changes
Seasonal production swings change operating conditions. A facility at 8,500 lb in winter may routinely exceed 10,000 lb in summer.
System Changes
Adding an evaporator, modifying piping, or changing refrigerant affects total charge — but static assessments don't update automatically.
The regulatory threshold is not a cushion — it's a trigger. Once you cross 10,000 lb under OSHA 29 CFR 1910.119 or EPA 40 CFR Part 68, you are immediately subject to all PSM/RMP requirements, including Process Hazard Analysis, a 14-element PSM program, EPA RMP submission, and OSHA inspection exposure. NH3Edge tells you exactly where you are, every second of every day.
Real-Time Ammonia System Schematic
Every vessel, compressor, evaporator, and unit cooler — live charge, pressure, and temperature at a glance.
Industrial-grade monitoring built for ammonia refrigeration
An edge computer that connects to your existing PLCs and sensors, runs continuous thermodynamic calculations, and delivers live inventory data to the IIOTK Cloud platform.
Cloud Dashboard & SCADA
Full-system overview with interactive P&ID flow diagrams, real-time vessel levels, KPI cards, and historical trend analysis.
Threshold Alerting
Multi-level alert escalation when calculated inventory approaches 10,000 lb. Email, SMS, and on-screen alerts with configurable thresholds.
Remote Monitoring
Secure remote access to your system from anywhere. Review system status, acknowledge alarms, and access compliance records on any device.
Compliance Reporting
Automated ammonia charge logs, PRV management tracking, daily inspection rounds, oil drain logs, and safety testing schedules.
IIOTK Cloud Platform
Purpose-built industrial IoT cloud platform by IIOTK Solutions. Reliable, secure, and designed specifically for ammonia refrigeration facilities.
PLC & Sensor Integration
Native Ethernet/IP and Modbus connectivity to Allen-Bradley, Siemens PLCs. Guided wave radar, magnetostrictive, and pressure-based level transmitters.
Expert compliance consulting from the engine room up
Every service is grounded in hands-on ammonia refrigeration experience and deep regulatory knowledge — not generic safety consulting applied to NH3.
Ammonia Inventory Determination
Component-level refrigerant charge calculations for every vessel, pipe, evaporator, and condenser using IRC (IIAR) charge management methodology. We determine your exact inventory — not nameplate, not estimation.
Includes liquid and vapor accounting, correction factors for operating conditions, and formal documented report suitable for OSHA and EPA submissions.
Pressure Relief Valve Analysis
Comprehensive PRV sizing verification and documentation per ANSI/IIAR 2-2014 and IIAR 9. Fire exposure, blocked discharge, and loss of cooling scenarios calculated for every relief device on your system.
Identifies undersized or incorrectly configured PRVs before an OSHA audit does. Includes sizing calculations, set pressure verification, and discharge piping adequacy review.
Process Hazard Analysis (PHA) Facilitation
Structured hazard identification and risk assessment using HAZOP, What-If, and checklist methodologies. We facilitate PHAs from scope through documentation and meet the OSHA PSM 5-year revalidation requirement.
Team composition guidance, node development, safeguard documentation, recommendation tracking, and revalidation scheduling included.
PSM Program Development
Complete Process Safety Management program development or remediation for all 14 OSHA PSM elements. From Employee Participation through Trade Secrets — we build programs that survive an audit, not just check boxes.
Gap analysis against existing program, element-by-element documentation, procedure development, and implementation support.
Compliance Audits
Full facility compliance audits against OSHA 29 CFR 1910.119 and EPA 40 CFR Part 68 requirements. We audit as an inspector would — finding gaps before they become citations.
Written audit report with findings, severity ratings, regulatory citations, and corrective action recommendations with implementation guidance.
Mechanical Integrity Program
Inspection and maintenance program development per IIAR Bulletin 110. Inspection schedules, PM task lists, deficiency tracking systems, and quality assurance procedures for all PSM-covered equipment.
Equipment list development, inspection interval determination, task procedure writing, deficiency severity classification, and MI program documentation.
Need a custom scope of work?
Every facility is different. We assess your system and build a proposal around what you actually need.
From assessment to live monitoring
A structured four-step process from initial assessment to a fully operational monitoring system with compliance documentation.
System Assessment
We perform a thorough review of your existing system — P&IDs, equipment list, current inventory documentation, PLC architecture, and sensor layout. We identify gaps and determine the ideal monitoring configuration.
Instrument Specification
We specify the right sensors for your system — guided wave radar, magnetostrictive, or pressure-based level transmitters for each vessel. We design the integration architecture to connect NH3Edge to your existing PLCs.
NH3Edge Deployment
The NH3Edge edge computer is commissioned on-site. We configure PLC communication, map all data points, validate sensor readings against field measurements, and tune the thermodynamic calculation models.
Live & Compliant
Your system is live on the IIOTK Cloud platform. Real-time inventory data flows continuously, threshold alerts are configured, compliance modules are activated, and your team is trained on the dashboard.
The regulations we navigate so you don't have to
Three interconnected regulatory frameworks govern ammonia refrigeration safety. NH3Edge is built to address all of them.
Process Safety Management
Once your ammonia system exceeds 10,000 lb, you are subject to all 14 elements of OSHA's Process Safety Management standard. Non-compliance results in citations up to $15,625 per willful violation per day.
Risk Management Program
The EPA Risk Management Program runs parallel to OSHA PSM. Facilities over 10,000 lb must submit an RMP to the EPA every 5 years and comply with Program 3 requirements under the 2024 CCCAP amendments.
Safety Design & Maintenance
IIAR standards are the technical backbone of ammonia refrigeration safety. OSHA and EPA rely on IIAR standards as the recognized and generally accepted good engineering practice (RAGAGEP) for ammonia systems.
Stop guessing.
Start measuring.
Your ammonia inventory is not a fixed number. It's a dynamic system state that changes every hour. NH3Edge tells you exactly where you stand — before OSHA shows up to tell you.