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We've made it easy for you to find your equivalent calibration gas. Just enter your part number in the search box (top right of every page). Or use the filters in the left column to narrow in on your calibration gas. Save up to 50% of the cost of brand name gases. We supply identical mixtures with ISO and NIST certification.
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RKI Instruments 81-0064RK Replacement Calibration Gas - 50 PPM Carbon Monoxide (17 Liter)
$50.0050 PPM Carbon Monoxide Calibration Gas, Balance Air, 17 Liter Steel Cylinder (RKI Instruments 81-0064RK Equivalent). -
RKI Instruments 81-0091RK Replacement - 100 PPM Carbon Monoxide, 25% LEL Pentane, 19% Oxygen, Balance Nitrogen (17L)
$50.00100 PPM Carbon Monoxide, 25% LEL Pentane, 19% Oxygen, Balance Nitrogen, 17 Liter Steel Cylinder (RKI Instruments 81-0091RK Equivalent). -
RKI Instruments 81-0007RK Replacement Calibration Gas - 15% LEL Hexane (17 Liter)
$50.0015% LEL Hexane Calibration Gas, Balance Air, 17 Liter Steel Cylinder (RKI Instruments 81-0007RK Equivalent). -
RKI Instruments 81-0018RK Replacement Calibration Gas - 50% LEL Isobutane (17 Liter)
$50.0050% LEL Isobutane Calibration Gas, Balance Air, 17 Liter Steel Cylinder (RKI Instruments 81-0018RK Equivalent). -
RKI Instruments 81-0012RK Replacement Calibration Gas - 50% LEL Methane (17 Liter)
$50.0050% LEL Methane Calibration Gas, Balance Air, 17 Liter Steel Cylinder (RKI Instruments 81-0012RK Equivalent). -
RKI Instruments 81-0074RK Replacement Calibration Gas - 2% by volume Oxygen (17 Liter)
$50.002% by volume Oxygen Calibration Gas, Balance Nitrogen, 17 Liter Steel Cylinder (RKI Instruments 81-0074RK Equivalent). -
RKI Instruments 81-0081RK Replacement Calibration Gas - 2000 PPM R-22 (17 Liter)
$50.002000 PPM R-22 Calibration Gas, Balance Air, 17 Liter Steel Cylinder (RKI Instruments 81-0081RK Equivalent). -
RKI Instruments 81-0071RK Replacement Calibration Gas - 5000 PPM Carbon Dioxide (17 Liter)
$50.005000 PPM Carbon Dioxide Calibration Gas, Balance Nitrogen, 17 Liter Steel Cylinder (RKI Instruments 81-0071RK Equivalent). -
RKI Instruments 81-0068RK Replacement Calibration Gas - 100 PPM Carbon Monoxide (17 Liter)
$50.00100 PPM Carbon Monoxide Calibration Gas, Balance Nitrogen, 17 Liter Steel Cylinder (RKI Instruments 81-0068RK Equivalent). -
RKI Instruments 81-0000RK Replacement Calibration Gas - 1000 PPM Hydrogen (17 Liter)
$50.001000 PPM Hydrogen Calibration Gas, Balance Air, 17 Liter Steel Cylinder (RKI Instruments 81-0000RK Equivalent).
