Air Products Hydrogen 2% Span Gas, 34 L

Overview

The Air Products span gas hydrogen 2% mixture (2% hydrogen in balance gas) is a certified calibration mixture used for the verification, calibration, and span adjustment of gas analysers and detection systems. Supplied in a robust 34 litre non-refillable aluminium canister, it provides a convenient, single-use calibration source for field and laboratory instrumentation.

Calibration gases manufactured by Air Products are traceable to national standards and are issued with a Certificate of Analysis in accordance with ISO 6141, giving instrument engineers confidence in the exact composition of the mixture they are applying.

Engineering & Design

All non-refillable canisters are manufactured in robust, lightweight aluminium alloy construction, providing safe transport and handling for portable calibration use. Once empty, the canister is simply de-pressurised and recycled through the normal waste stream, with no return logistics required.

The mixture is gravimetrically prepared and analytically verified, with the Certificate of Analysis documenting the certified concentration of the components. This traceability chain supports quality management systems, ISO 17025 laboratory practices, and site calibration records for gas analyser programmes.

Key Features

• Certified calibration mixture with 2% hydrogen in balance gas
• 34 litre non-refillable aluminium canister
• Traceable to national measurement standards
• Certificate of Analysis issued per ISO 6141
• Robust lightweight construction for portable use
• Simple recycling after de-pressurisation — no canister return
• Suitable for analyser calibration and span adjustment
• Manufactured by Air Products, a leading industrial gas supplier

Applications

• Calibration of hydrogen analysers and detectors
• Span adjustment of process gas chromatographs
• Verification of laboratory analytical instruments
• Quality control in gas processing plants
• Routine instrument calibration programmes
• Site acceptance testing of gas detection systems

Specifications

Reliable gas analyser calibration depends on certified reference mixtures, and the Air Products hydrogen 2% span gas provides the traceable standard needed for hydrogen measurement verification. The span gas is prepared to a certified composition, documented in the Certificate of Analysis, and supplied in a practical portable format for field calibration work.

For analyser verification, the Air Products span gas provides the certified reference, and Seven Star LLC supplies the Air Products span gas canister with its Certificate of Analysis for your calibration records.

The Air Products span gas hydrogen 2% is the certified calibration gas for the hydrogen analyzers, and the Air Products span gas hydrogen 2% cylinder is used for the span adjustment of the gas detector.

The Air Products span gas hydrogen 2% is used for the weekly span check, and the hydrogen 2% span gas is connected with the regulator.

The Air Products span gas with 2% hydrogen is used for the calibration of the gas analyzers under the controlled conditions. The cylinder is connected to the analyzer with the pressure regulator and the flow control valve, and the reading is adjusted to the certified concentration printed on the certificate. The gas mixture is supplied in the standard cylinder format and is traceable to the national standards.

Why Seven Star LLC

Seven Star LLC supplies Air Products span gas canisters and calibration accessories for the Gulf region, ensuring gas analyser programmes have certified mixtures with complete documentation. We coordinate the supply with appropriate handling guidance for the safe transport of pressurised calibration gases.

Our team supports instrument departments with calibration consumables, cylinder requirements, and replacement planning for routine analyser verification programmes.

Calibration Confidence

Using a certified span gas with documented traceability supports compliance with ISO 17025 laboratory practices and audit requirements, giving instrument technicians a defensible calibration record. The 34 litre canister provides a convenient quantity for regular calibration cycles without the handling burden of large cylinders.

The aluminium canister construction is lightweight and robust, and the non-refillable design removes cylinder management overhead: after de-pressurisation the canister is recycled, with no return logistics.

Choosing the Correct Span Gas

A span gas is only useful when it matches the analyser it is meant to check. Before ordering, compare the following with the analyser manual or the site calibration procedure:

• The target component and concentration: 2% hydrogen in this canister
• The balance gas the analyser or detector expects
• The measuring range, so that the span point sits in the upper part of the range
• The regulator and connection type used on your calibration kit
• The certificate information your quality system needs to record

For flammable gas detectors that read in %LEL, confirm how the manufacturer defines 100% LEL for hydrogen and what reading 2% hydrogen should give on your instrument before you adjust the span.

Calibration Procedure in Practice

A reliable span check follows the same steps every time:

• Check the canister label and certificate, including the expiry date.
• Fit the regulator by hand, open slowly and check the joint for leaks.
• Zero the analyser first with zero gas or clean air, as the procedure requires.
• Apply the Air Products span gas hydrogen 2% at the flow rate stated by the analyser manufacturer, using the correct calibration cap or adapter.
• Wait for a stable reading, then adjust the span to the certified value on the certificate.
• Record the as-found and as-left readings, the canister lot and the certificate number.

Storage, Handling and Troubleshooting

Store canisters upright in a shaded, ventilated area away from heat sources; in the Gulf summer, vehicle cabins and outdoor containers can become far too hot. If readings drift during calibration, check for a leaking regulator seat, an incorrect flow rate or a canister that is nearly empty before suspecting the sensor. Readings that cannot be brought to the certified value usually mean the sensor has aged and needs replacement.

Applications in Oman and the GCC

Hydrogen measurement is needed in refinery hydrotreating and reformer units, battery rooms, generator cooling systems at power stations, and in the growing green hydrogen projects around Duqm and Salalah. Each of these relies on regular span checks of fixed and portable detectors.

Sourcing from Seven Star LLC

Seven Star LLC supplies calibration gases, regulators and adapters together, so field teams receive a complete kit with the correct documentation.

Request a Quote for Air Products SPAN GAS -HYDROGEN(2%) BEL AIR,34 L

For the Air Products span gas, hydrogen 2% calibration gas or any related control and instrumentation requirement, contact the Seven Star LLC team. Submit a formal inquiry through our RFQ page with your required quantity and specification, and our specialists will respond with a detailed commercial proposal and the Air Products documentation.

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