RKI Instruments Calibration Gas Cross-Reference — Trigas USA Equivalents
Find the Trigas USA equivalent for any RKI Instruments calibration gas part number. Every cross-reference below is verified by our ISO 17025-accredited lab against the RKI Instruments datasheet — same gas, same concentration, same cylinder and fitting — typically 15–30% below RKI Instruments pricing. Every cylinder ships with a NIST-traceable Certificate of Analysis, in 48 hours from our Florida facility.
41 RKI Instruments part numbers mapped · 28 available to order online. Don’t see your part? Send us the part number — our lab adds new mappings within one business day.
RKI Instruments → Trigas USA cross-reference table
| RKI Instruments Part # | Gas / Mixture | Trigas USA Equivalent | |
|---|---|---|---|
| 81-0089RK-03 | 50 PPM Carbon Monoxide, 15% LEL Hexane, 12% Oxygen / Nitrogen | 103L-331 | Request → |
| 81-0090RK-03 | 50 PPM Carbon Monoxide, 50% LEL Methane, 12% Oxygen / Nitrogen | 103L-318 | Request → |
| 81-0090RK-01 | 50 PPM Carbon Monoxide, 50% LEL Methane, 12% Oxygen / Nitrogen | 34LS-318 | View product → |
| 81-0154RK-04 | 50 PPM Carbon Monoxide, 50 % LEL Methane, 25 PPM Hydrogen Sulfide, 12% Oxygen / Nitrogen | 34L-409 | View product → |
| 81-0155RK-02 | 50 PPM Carbon Monoxide, 15% LEL Hexane, 25 PPM Hydrogen Sulfide, 12% Oxygen / Nitrogen | 58L-431R | Request → |
| 81-0154RK-02 | 50 PPM Carbon Monoxide, 50 % LEL Methane, 25 PPM Hydrogen Sulfide, 12% Oxygen / Nitrogen | 58L-409 | View product → |
| 81-0175RK-04 | 10 PPM Ammonia / Nitrogen | 34L-13-10 | Request → |
| 81-0175RK-02 | 10 PPM Ammonia / Nitrogen | 58L-13-10 | Request → |
| 81-0070RK-03 | 2,000 PPM Carbon Dioxide / Nitrogen | 103L-34-2000 | Request → |
| 81-0072RK-03 | 2.5% Carbon Dioxide / Nitrogen | 103L-35-2.5 | Request → |
| 81-0071RK-03 | 5,000 PPM Carbon Dioxide / Nitrogen | 103L-34-5000 | Request → |
| 81-0065RK-01 | 100 PPM Carbon Monoxide / Nitrogen | 34LS-49-100 | View product → |
| 81-0064RK-03 | 50 PPM Carbon Monoxide / Air | 103L-50-50 | View product → |
| 81-0064RK-01 | 50 PPM Carbon Monoxide / Air | 34LS-50-50 | View product → |
| 81-0192RK-04 | 2 PPM Chlorine / Nitrogen | 34L-252-2 | View product → |
| 81-0192RK-02 | 2 PPM Chlorine / Nitrogen | 58L-252-2 | View product → |
| 81-0007RK-03 | 15% LEL Hexane (0.18% Vol) / Air | 103L-262-15 | Request → |
| 81-0007RK-01 | 15% LEL Hexane (0.18% Vol) / Air | 34LS-262-15 | Request → |
| 81-0195RK-04 | 5 PPM Hydrogen Chloride / Nitrogen | 34L-HCL-5 | Request → |
| 81-0195RK-02 | 5 PPM Hydrogen Chloride / Nitrogen | 58L-HCL-5 | View product → |
| 81-0196RK-04 | 5 PPM Hydrogen Cyanide / Nitrogen | 34L-HCN-10 | View product → |
| 81-0196RK-02 | 5 PPM Hydrogen Cyanide / Nitrogen | 58L-HCN-10 | View product → |
| 81-0151RK-04 | 25 PPM Hydrogen Sulfide / Nitrogen | 34L-98-25 | View product → |
| 81-0151RK-02 | 25 PPM Hydrogen Sulfide / Nitrogen | 58L-98-25 | View product → |
| 81-0002RK-03 | 50% LEL (2% vol) Hydrogen / Air | 103L-86A-50 | Request → |
| 81-0012RK-03 | 50% LEL (2.5% vol) Methane / Air | 103L-135A-2.5 | View product → |
| 81-0012RK-01 | 50% LEL (2.5% vol) Methane / Air | 34LS-135A-2.5 | View product → |
| 81-0013RK-05 | 50% LEL (2.5% vol) Methane / Air | 58L-135A-2.5 | View product → |
| 81-0181RK-04 | 25 PPM Nitric Oxide / Nitrogen | 34L-125-25 | View product → |
| 81-0181RK-02 | 25 PPM Nitric Oxide / Nitrogen | 58L-125-25 | View product → |
| 81-0180RK-04 | 10 PPM Nitrogen Dioxide / Nitrogen | 34L-111-10 | View product → |
| 81-0180RK-02 | 10 PPM Nitrogen Dioxide / Nitrogen | 58L-111-10 | View product → |
| 81-0078RK-03 | 100% Nitrogen | 103L-114 | View product → |
| 81-0078RK-01 | 100% Nitrogen | 34LS-114 | View product → |
| 81-0004RK-03 | 50% LEL (1.1% vol) Propane / Air | 103L-176-50 | Request → |
| 81-0170RK-04 | 5 PPM Sulfur Dioxide / Nitrogen | 34L-175-5 | View product → |
| 81-0170RK-02 | 5 PPM Sulfur Dioxide / Nitrogen | 58L-175-5 | View product → |
| 81-0076RK-01 | Zero Air (20.9% Oxygen | 34LS-1 | View product → |
| 81-0152RK-02 | 50 PPM Hydrogen Sulfide in Air / Nitrogen | 58L-99-50 | View product → |
Cross-references are provided for compatibility identification only. All trademarks and OEM part numbers are the property of their respective owners. Trigas USA is not affiliated with RKI Instruments. Mappings verified against current OEM datasheets and re-checked quarterly.