Cart (
Overview
Ammonia is a gas that demands respect. At low concentrations it causes immediate eye and respiratory irritation; at higher concentrations it is acutely toxic and can be life-threatening within minutes of exposure. Yet ammonia is also one of the most widely used industrial chemicals on the planet — present in refrigeration systems, fertiliser production, wastewater treatment, food processing facilities, and increasingly in maritime and power generation as a zero-carbon fuel. Wherever ammonia is present in a workplace, the gas detectors monitoring for it need to be accurately calibrated to respond at the right concentration — not approximately right, but precisely right.
The Ammonia Balance N2 Calibration Gas (5 / 10 / 50 ppm) is a range of precision-formulated span gas cylinders for the calibration of electrochemical ammonia gas detectors across three concentration levels. Whether your detector is configured to alarm at a low-level TLV-TWA threshold of 25 ppm, a short-term exposure limit of 35 ppm, or a higher IDLH-referenced range, the 5 ppm, 10 ppm, and 50 ppm concentration options provide the calibration reference points your detector maintenance procedure requires. The balance gas is nitrogen (N2) — an inert, oxygen-free carrier that eliminates sensor cross-sensitivity interference during calibration and ensures concentration stability throughout the cylinder’s service life.
Supplied by Alright Engineering Solutions as part of their span gas and regulator range, each concentration is available in C10 cylinders from 34 litres to 116 litres — suitable for single-instrument portable calibration through to fixed station multi-detector maintenance programmes. For safety managers, instrument technicians, and procurement teams managing ammonia detection in refrigeration plant rooms, chemical facilities, agricultural operations, or marine engine rooms, this calibration gas provides the certified concentration reference that accurate detector calibration demands.
Key Features
Three Calibration Concentrations — 5 ppm, 10 ppm, and 50 ppm
Different ammonia detectors are configured to different alarm setpoints depending on the application and the regulatory exposure limits being enforced. The 5 ppm concentration is suitable for calibrating detectors set to low-level environmental or food safety monitoring thresholds. The 10 ppm concentration aligns with common TWA-based occupational exposure limit calibration requirements and is widely used for calibrating ammonia detectors in industrial refrigeration plant rooms. The 50 ppm concentration suits detectors configured for higher-range industrial process monitoring or STEL-level alarm threshold calibration. Having access to all three concentrations means your calibration gas selection can be matched precisely to the detector’s configured alarm range — producing a calibration result that is relevant to your actual monitoring requirement, not simply the closest available approximation.
Nitrogen Balance Gas — Inert Carrier for Interference-Free Calibration
Ammonia is a reactive gas and electrochemical ammonia sensors can exhibit cross-sensitivity to a range of other gases present in industrial environments — including amines, hydrazine, and in some sensor designs, hydrogen. Calibrating with a nitrogen-balance gas eliminates the influence of background oxygen variation and removes the possibility of ambient gas interference during the calibration sequence. Nitrogen’s chemical inertness also ensures that the ammonia concentration remains stable within the cylinder over the cylinder’s service life — preventing concentration drift that could introduce systematic calibration error into your detector maintenance records over time.
Multiple Cylinder Sizes — 34L to 116L
The C10 cylinder range covers five sizes: 34L, 58L, 103L, 110L, and 116L. Smaller 34L and 58L cylinders are well suited to portable field calibration kits, vessel maintenance programmes, and single-instrument or low-frequency calibration tasks where compactness and ease of transport matter. Larger 103L to 116L cylinders support fixed calibration stations and fleet instrument maintenance programmes — delivering a significantly lower cost per calibration event compared to small canister formats, and reducing the operational disruption of frequent cylinder changeout in high-frequency calibration schedules.
Precision-Formulated Ammonia Concentration — Traceable Accuracy
Ammonia calibration gas for safety-critical detector calibration must be prepared to a certified concentration with documented traceability to national or international measurement standards. The certified ppm concentration of this span gas — at 5, 10, or 50 ppm — provides the traceable reference required for calibration records under ISO 9001 quality management systems, ISO 45001 occupational health and safety management systems, and site-specific instrument calibration control procedures subject to internal or third-party audit. An uncertified or informally prepared gas mixture cannot provide this assurance, regardless of its stated concentration.
Aluminium Cylinder Construction — Lightweight and Chemically Compatible
Ammonia is a corrosive gas that can react with certain metals and cylinder materials, making material selection for ammonia calibration gas cylinders an important consideration. Aluminium cylinders provide the chemical compatibility required for stable ammonia gas storage — preventing cylinder wall reaction that could alter the gas concentration over time. Aluminium construction also provides significant weight savings over steel, which is a practical benefit for technicians transporting calibration equipment to refrigeration plant rooms, elevated platforms, confined space entry points, and vessel locations where cylinder weight directly affects ease of handling.
Compatible with Standard Ammonia Detector Calibration Procedures and Regulators
The cylinder valve configuration is compatible with standard calibration gas regulators and detector-specific calibration adapters used with leading ammonia-capable portable gas detector models from manufacturers including MSA, Industrial Scientific, Honeywell BW, Dräger, and others. This compatibility with existing calibration equipment removes any requirement for specialist connection hardware and allows the cylinder to be integrated directly into your current calibration workflow without modification.
Technical Specifications
Product: Ammonia Balance N2 Calibration Gas
Gas Component: Ammonia (NH₃)
Available Concentrations: 5 ppm / 10 ppm / 50 ppm
Balance Gas: Nitrogen (N2)
Cylinder Specification: C10
Available Cylinder Sizes: 34L / 58L / 103L / 110L / 116L
Cylinder Material: Aluminium
Product Category: Span Gas and Regulator
Supplied By: Alright Engineering Solutions Pte. Ltd.
Benefits
Verify that your ammonia detector will alarm at the correct concentration. Electrochemical ammonia sensors age, drift, and can be affected by exposure to high concentrations of ammonia or other interfering gases. A sensor that has drifted may read low — under-reporting ammonia concentration and potentially failing to alarm before workers are exposed to levels that exceed occupational exposure limits. Regular span calibration with certified ammonia span gas at the concentration that matches your detector’s alarm setpoint is the only reliable way to verify that the sensor will respond correctly when it counts — not just that it is powered on and displaying a zero reading.
Demonstrate regulatory compliance with documented calibration records. Workplace health and safety regulations in Singapore and internationally require that gas detectors used in ammonia-risk environments be maintained in accordance with manufacturer specifications and relevant safety standards. For facilities subject to regulatory inspection — including food processing plants, cold storage facilities, chemical manufacturing sites, and wastewater treatment works — calibration records demonstrating that detectors were calibrated using certified reference gas at the correct concentration provide auditable evidence of compliance with gas detector maintenance requirements.
Match calibration concentration to your detector’s alarm setpoint. One of the most common sources of calibration error in ammonia detector maintenance is using a span gas concentration that does not match the detector’s configured alarm range. Calibrating a detector set to alarm at 25 ppm TWA using a 50 ppm span gas introduces span error at the alarm threshold. The availability of 5 ppm, 10 ppm, and 50 ppm options from a single supplier allows you to select the calibration concentration that is most relevant to your detector’s specific alarm configuration — improving calibration accuracy and reducing the risk of systematic under-reading at the alarm threshold.
Reduce cost per calibration with larger cylinder formats. Ammonia span gas in small aerosol canister format is convenient for occasional calibration but becomes expensive per calibration event when multiple detectors are maintained on a regular schedule. The 103L to 116L cylinder options provide a substantially lower cost per calibration — reducing the ongoing consumable cost of a structured ammonia detector maintenance programme without requiring any reduction in calibration frequency.
Local supply availability eliminates overseas sourcing lead times. Alright Engineering Solutions maintains ammonia span gas stock locally in Singapore across all three concentrations and multiple cylinder sizes. For facilities with fixed calibration schedules and marine operators with tight port turnaround windows, local availability removes the uncertainty of international shipping lead times for an essential calibration consumable.
Who It’s For
The Refrigeration Engineer or Plant Maintenance Technician
You maintain ammonia refrigeration systems in an industrial cold store, food processing plant, ice rink, or district cooling facility. Your site uses fixed ammonia detectors in the plant room and portable detectors for maintenance work, and your maintenance procedure requires regular bump testing and span calibration of all ammonia-configured instruments. You need certified ammonia span gas at the concentration that matches your detector’s alarm setpoints — 10 ppm or 25 ppm TWA — in a cylinder size that fits your calibration station or portable calibration kit, with reliable local supply to support your maintenance schedule without gaps.
The HSE Officer Managing Ammonia Risk in a Chemical or Agricultural Facility
You’re responsible for gas detection compliance at a fertiliser production facility, chemical plant, or agricultural processing site where ammonia is present as a process chemical, a by-product, or a stored commodity. Your site operates under regulatory requirements for workplace ammonia exposure monitoring, and your gas detector maintenance programme needs to demonstrate that all ammonia detectors are calibrated against certified reference gas at the concentration relevant to the exposure limit being monitored. Your calibration records are reviewed during regulatory inspections and internal HSE audits, and the quality of those records directly reflects the credibility of your safety management system.
The Safety Equipment Procurement Officer for a Fleet or Multi-Site Operation
You source calibration gas for a managed fleet of vessels with ammonia refrigeration systems, a multi-site cold chain operation, or a gas detector rental company maintaining instruments for clients in ammonia-risk industries. You need consistent supply of ammonia span gas across one or more concentrations, in larger cylinder sizes that reduce per-calibration cost and minimise changeout frequency. Alright Engineering Solutions can provide formal quotations for regular supply arrangements and assist with multi-concentration requirements across a diverse instrument fleet.
Possible Applications
- Industrial ammonia refrigeration plant rooms — Span calibration of fixed and portable ammonia detectors in cold storage facilities, food processing plants, breweries, and district cooling plant rooms where ammonia refrigerant leakage monitoring is a continuous safety and compliance requirement
- Wastewater treatment facilities — Calibration of ammonia detectors used in monitoring ammonia generation from biological treatment processes, sludge handling areas, and confined spaces within wastewater treatment works
- Fertiliser production and storage — Span calibration of detectors in anhydrous ammonia storage and handling areas, fertiliser blending operations, and ammonia pipeline monitoring systems at agricultural chemical facilities
- Food and beverage processing — Calibration of portable ammonia detectors used in confined space entry procedures and maintenance work in food processing facilities using ammonia refrigeration systems
- Marine vessels with ammonia refrigeration — Calibration maintenance of ammonia detectors in refrigerated cargo vessel plant rooms, reefer container vessel machinery spaces, and fishing vessels using ammonia refrigeration systems
- Ammonia as marine fuel (NH₃ bunkering) — Detector calibration support for vessels and bunkering facilities handling ammonia as a zero-carbon marine fuel, where ammonia leakage monitoring is an emerging safety requirement in the maritime decarbonisation sector
- Chemical manufacturing and pharmaceutical production — Span calibration of ammonia monitors in process areas, laboratory environments, and chemical storage facilities where ammonia is used as a synthesis chemical or process intermediate
- Gas detector service and rental companies — Calibration gas supply for companies providing ammonia-configured portable detector rental, calibration, and maintenance services to clients across cold chain, chemical, and agricultural industries
Trust and Certifications
Certified Calibration Gas — Traceable Concentration Accuracy
Each cylinder is prepared to a certified ammonia concentration — 5, 10, or 50 ppm — with traceability documentation to national or international measurement standards appropriate for safety instrument calibration. For organisations whose gas detector maintenance programme is subject to ISO 9001 quality system audits, ISO 45001 occupational safety management reviews, or regulatory inspection of instrument calibration records, certified span gas with traceable concentration documentation provides the evidence base that demonstrates calibration was performed to a recognised standard — not against an unverified gas mixture of unknown accuracy.
Compliance Support for Occupational Exposure Limit Monitoring Requirements
Ammonia occupational exposure limits (OELs) are defined by regulatory bodies across jurisdictions — including the Singapore Workplace Safety and Health Act framework, OSHA PEL (25 ppm TWA, 35 ppm STEL), ACGIH TLV (25 ppm TWA, 35 ppm STEL), and EU OEL Directive values. Gas detectors used to monitor compliance with these limits must be calibrated accurately to the concentration ranges relevant to those limits. The 5 ppm and 10 ppm calibration gas options support detector calibration for low-level OEL monitoring, while the 50 ppm option supports STEL-range and higher-threshold detector calibration — covering the full range of ammonia OEL monitoring requirements across regulated industries.
Suitable for Calibration of ATEX, IECEx, and SIL-Rated Ammonia Detectors
Fixed and portable ammonia detectors used in hazardous area locations carry ATEX or IECEx certifications confirming their safe use in explosive or flammable atmospheres. Safety instrumented system (SIS) ammonia detectors may carry SIL (Safety Integrity Level) ratings under IEC 61508 / IEC 61511. Maintaining these detectors in calibration using certified span gas is a condition of continued certified performance — and for SIL-rated instruments, calibration with traceable reference gas is typically a specific requirement of the safety instrumented system validation and maintenance plan. This span gas is suitable for calibration of ATEX, IECEx, and SIL-rated ammonia detection instruments.
Supplied by Alright Engineering Solutions — Singapore Gas Detection Specialist
The Ammonia Balance N2 Calibration Gas range is supplied by Alright Engineering Solutions Pte. Ltd., a Singapore-based distributor of portable and fixed gas detection equipment, calibration gases, and safety instrumentation. Alright Engineering Solutions supports industrial facilities, vessel operators, cold chain operators, and safety equipment service companies across Singapore and the Southeast Asian region with gas detection equipment, span gas supply, and technical support for gas detector maintenance programmes.
Accessories and Variants
Calibration Gas Regulators
A compatible calibration regulator is required to connect the span gas cylinder to your detector’s calibration inlet. For ammonia calibration gas, regulator material compatibility is an important consideration — ammonia can react with certain regulator materials, and using a regulator not rated for ammonia service can contaminate the gas stream, alter delivery concentration, or damage the regulator over time. Alright Engineering Solutions supplies calibration regulators in ammonia-compatible materials with fixed-flow and demand-flow options to suit different detector calibration flow rate requirements.
Calibration Adapters and Tubing
Detector-specific calibration adapters and PTFE-lined calibration tubing are recommended for ammonia span gas delivery — PTFE is resistant to ammonia adsorption and prevents concentration loss between the regulator outlet and the detector calibration inlet that can occur with standard PVC or rubber tubing. Alright Engineering Solutions can advise on appropriate tubing material and calibration adapter options for your specific detector models.
Available Concentration Variants
This product is available in three certified ammonia concentrations to match your detector’s calibration requirement:
5 ppm NH₃ Balance N2 — For low-level ammonia detector calibration, environmental monitoring thresholds, and food safety monitoring applications
10 ppm NH₃ Balance N2 — For TWA-range occupational exposure limit detector calibration in industrial refrigeration and chemical processing applications
50 ppm NH₃ Balance N2 — For STEL-range and higher-threshold detector calibration in process monitoring, industrial safety, and high-concentration ammonia handling environments
Related Span Gas Products from Alright Engineering Solutions
Multi-gas calibration mixtures — Combined NH₃, H₂S, CO, O₂, and LEL calibration gas mixtures for multi-gas detector calibration programmes
H₂S Balance N2 calibration gas — Hydrogen sulphide span gas for toxic gas detector calibration in oil and gas, marine, and wastewater applications
CO Balance N2 / Balance Air calibration gas — Carbon monoxide span gas for detector calibration in combustion monitoring and confined space entry applications
Get in Touch
If you need to source Ammonia Balance N2 calibration gas — at 5 ppm, 10 ppm, or 50 ppm — for your ammonia detector maintenance programme in a refrigeration plant room, chemical facility, wastewater treatment site, vessel, or multi-site safety programme, contact Alright Engineering Solutions to confirm concentration and cylinder size availability and request a formal quotation.
Our team can also assist with regulator and calibration adapter selection, multi-gas mixture sourcing, and ammonia gas detection equipment supply for your facility or fleet safety requirements.
📍 3791 Jalan Bukit Merah #06-01, E-Centre @ Redhill, Singapore 159471
