{"product_id":"nitrogen-dioxide-400-ppm-calibration-gas","title":"Nitrogen Dioxide (NO₂) 400 ppm Calibration Gas — Balance Nitrogen, 116L (116L-111-400)","description":"\u003cp\u003e\u003cstrong\u003eNitrogen Dioxide (NO₂) 400 ppm calibration gas\u003c\/strong\u003e, balance nitrogen — NIST-traceable and manufacturer-direct. Used to span and calibrate NO₂ \/ NOx gas detectors and emissions analyzers (diesel exhaust, combustion, stack and environmental monitoring).\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart number:\u003c\/strong\u003e 116L-111-400\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConcentration:\u003c\/strong\u003e 400 ppm Nitrogen Dioxide (NO₂)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBalance:\u003c\/strong\u003e Nitrogen (balance air also available — request)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCylinder:\u003c\/strong\u003e 116 L aluminum, C-10 connection. Also available in 34 L and 58 L on request.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShelf life:\u003c\/strong\u003e 12 months from fill date.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e NIST-traceable certificate of analysis included.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross-reference:\u003c\/strong\u003e direct equivalent to Gasco and Cal Gas Direct nitrogen dioxide 400 ppm (\"nitrogen 400\") — same spec, manufacturer-direct pricing.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMade in the USA · ships in 48 hours.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eLooking for \u003cstrong\u003enitrogen 400\u003c\/strong\u003e or 400 ppm \u003cstrong\u003enitrogen dioxide gas\u003c\/strong\u003e? This is it — NO₂ 400 ppm span gas bought direct from the manufacturer, without the distributor markup.\u003c\/p\u003e","brand":"Trigas USA","offers":[{"title":"Default Title","offer_id":48851819462873,"sku":"116L-111-400","price":400.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0806\/3713\/3017\/files\/cylinder-116l-aluminum_7dfe246d-c7b9-440d-bf5a-62f0cd4d3743.jpg?v=1778765810","url":"https:\/\/trigas-usa.com\/products\/nitrogen-dioxide-400-ppm-calibration-gas","provider":"Trigas USA ","version":"1.0","type":"link"}