We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

3G Electric
GASCO 221L-310BS Disposable Calibration Gas, Methane 2.5% in Nitrogen, CGA 165 - Calibration Gases for Portable Gas Detectors
GASCOCalibration Gases for Portable Gas Detectors

GASCO 221L-310BS Disposable Calibration Gas, Methane 2.5% in Nitrogen, CGA 165

The GASCO Calibration Gas: Nitrogen (MPN 221L-310BS) is a disposable calibration gas for all OEM gas detectors, featuring a methane 2.5% mixture in a nitrogen background with +/-5% accuracy and a CGA 165 fitting. 3G…

SKU 3G-OTH-550524

Also listed as: 221L310BS · 221L 310BS

Brand
GASCO
Item
221L-310BS Disposable Calibration Gas, Methane 2.5% in Nitrogen, CGA 165
Part Number
221L-310BS
Category
Calibration Gases for Portable Gas Detectors
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

GASCO
Manufacturer Part Number
221L-310BS
Type
Disposable, +/-5% Accuracy, CH4/CO, Calibration Gas, CGA 165
CGA Number
CGA 165
Gas Mixture
Methane 2.5%
Reusability
Disposable
For Use With
All OEM Gas Detectors
Background Gas
Nitrogen

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

GASCO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The GASCO Calibration Gas: Nitrogen (MPN 221L-310BS) is a disposable calibration gas for all OEM gas detectors, featuring a methane 2.5% mixture in a nitrogen background with +/-5% accuracy and a CGA 165 fitting. 3G Electric interprets this demand and delivers it across 14 industrial departments — with specialist depth in combustion, pumps and controls as an authorised distributor — ensuring you get the right answer, not just a catalog.

Frequently Asked Questions

What is GASCO calibration gas used for?

GASCO calibration gas is used to verify and calibrate portable gas detectors across all OEM brands. The methane 2.5% mixture in a nitrogen background ensures accurate sensor response for combustible gas detection in industrial safety applications.

What are the specifications of GASCO 221L-310BS calibration gas?

This disposable calibration gas has a methane 2.5% mixture in a nitrogen background, +/-5% accuracy, and a CGA 165 fitting. It is designed for use with all OEM gas detectors and is non-refillable.

Where to buy GASCO calibration gas in worldwide?

3G Electric supplies and delivers GASCO calibration gas worldwide. We handle full logistics and customs clearance, ensuring you receive the correct gas mixture and fitting for your detectors. Contact us for availability and lead time.

How to use GASCO disposable calibration gas?

Attach the CGA 165 fitting to your gas detector's calibration port, open the valve slowly, and allow the methane/nitrogen mixture to flow at the manufacturer-recommended rate. After calibration, close the valve and dispose of the cylinder per local regulations.

Not sure this is the right part? Photo-identify it

GASCO Products

3G Electric supplies GASCO calibration gases for portable gas detectors. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

More from GASCO

View all GASCO parts
Calibration gas mixture of 225 ppm carbon monoxide in nitrogen, supplied in a 105 L cylinder with ±2% accuracy. Used for calibrating portable gas detectors from all OEM manufacturers to verify sensor response to carbon monoxide
GASCO
Calibration gas mixture of 225 ppm carbon monoxide in nitrogen, supplied in a 105 L cylinder with ±2% accuracy. Used for calibrating portable gas detectors from all OEM manufacturers to verify sensor response to carbon monoxide
Disposable calibration gas cylinder containing 3000 ppm hydrogen in air background gas. Accuracy ±5%. 103 L capacity. For use with portable gas detectors to verify sensor response and adjust readings
GASCO
Disposable calibration gas cylinder containing 3000 ppm hydrogen in air background gas. Accuracy ±5%. 103 L capacity. For use with portable gas detectors to verify sensor response and adjust readings
Disposable calibration gas cylinder containing 90 ppm methane in nitrogen with ±5% accuracy. Designed for use with portable gas detectors from all OEMs. Fitted with a CGA 600 connection
GASCO
Disposable calibration gas cylinder containing 90 ppm methane in nitrogen with ±5% accuracy. Designed for use with portable gas detectors from all OEMs. Fitted with a CGA 600 connection
Calibration gas mixture containing 515 ppm carbon monoxide in nitrogen, with +/-2% accuracy. Supplied in a 105 L cylinder for use with portable gas detectors to verify and adjust sensor response to CO hazards
GASCO
Calibration gas mixture containing 515 ppm carbon monoxide in nitrogen, with +/-2% accuracy. Supplied in a 105 L cylinder for use with portable gas detectors to verify and adjust sensor response to CO hazards
Calibration gas mixture containing 20.5% oxygen balanced with nitrogen, certified to ±2% accuracy. Supplied in a 105 L cylinder for use with portable gas detectors to verify and adjust sensor response. Suitable for routine calibration in industrial safety applications
GASCO
Calibration gas mixture containing 20.5% oxygen balanced with nitrogen, certified to ±2% accuracy. Supplied in a 105 L cylinder for use with portable gas detectors to verify and adjust sensor response. Suitable for routine calibration in industrial safety applications
Calibration gas mixture containing 19% oxygen with nitrogen balance, supplied in a 105-liter cylinder. Certified to ±2% accuracy for use with portable gas detectors from all OEMs. Used to verify and adjust detector response in industrial safety applications
GASCO
Calibration gas mixture containing 19% oxygen with nitrogen balance, supplied in a 105-liter cylinder. Certified to ±2% accuracy for use with portable gas detectors from all OEMs. Used to verify and adjust detector response in industrial safety applications
Disposable calibration gas cylinder with +/-5% accuracy, containing Pentane (50% LEL) 0.7% in nitrogen background gas. Designed for use with all OEM portable gas detectors to verify and adjust sensor response in industrial safety applications
GASCO
Disposable calibration gas cylinder with +/-5% accuracy, containing Pentane (50% LEL) 0.7% in nitrogen background gas. Designed for use with all OEM portable gas detectors to verify and adjust sensor response in industrial safety applications
This calibration gas cylinder contains a certified mixture of 0.91% propane (43.3% LEL) in air, with ±2% accuracy. The 105 L cylinder is used for field or bench calibration of portable gas detectors to verify sensor response and maintain safety compliance
GASCO
This calibration gas cylinder contains a certified mixture of 0.91% propane (43.3% LEL) in air, with ±2% accuracy. The 105 L cylinder is used for field or bench calibration of portable gas detectors to verify sensor response and maintain safety compliance

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first