Biosystems 54-9031 Calibration Gas: 50% LEL Methane, 18% Oxygen, Balance Nitrogen

50% LEL Methane / 18% Oxygen / Balance Nitrogen

• Biosystems equivalent multi-mixture calibration gas used to calibrate Biosystems gas detection equipment.
• Fully compatible with Biosystems gas detectors requiring specified cal gas mixture.
• Precision blended and inspected to industry standards - National Institute of Standards and Technology (NIST) traceable and certified.
• Made in the USA by GASCO, ISO 9001:2008 Certified.

Contact us for custom dual, triple and quad span gas mixtures.

Subject to hazardous materials shipping requirements.