Evidence Library

ASHRAE Standard 34 (Designation and Safety Classification of Refrigerants) is the canonical industry reference for assigning refrigerants to safety groups based on toxicity and flammability. The classification combines toxicity letters (A = lower toxicity, B = higher) with flammability digits (1 = no flame propagation, 2L = lower flammability, 2 = flammability, 3 = higher flammability). Class A3 is the highest flammability tier for non-toxic refrigerants. Propane (R-290) and isobutane (R-600a) are both A3. HCR 4141 is treated as an A3-equivalent blend per EPA SNAP submissions.

Documents the databases queried and the search dates used to verify negative findings on this site. Covers EPA SNAP, ASHRAE designation, UKAS accreditation, corporate registries, and independent lab record searches.

EIA publishes weekly residential propane prices and wholesale spot prices. Wholesale bulk propane has historically traded in the $0.50 to $1.50 per kilogram range. Refrigerant-grade packaged propane (R-290) retails in the $2 to $5 per kilogram range depending on packaging size and certification.

EPA proposed rule (Federal Register document 2025-19812) listing HCR 4141 as acceptable for new equipment only, not for retrofit of existing R-410A or R-22 systems. A supplemental NPRM was published April 6, 2026. Rule is not finalized as of May 2026.

Installation record documenting a 38% amperage reduction on a Daikin 10-ton HVAC unit.

Primary 20+ page marketing document detailing corporate overview, product claims, certifications, and case studies.

A certificate displayed by BHCR translated or distributed in Hebrew, claiming CE compliance under the Ecodesign Directive.

CE certificate number 4082 issued by UK Certification and Inspection Ltd. for BHCR Hq Corp S.A., citing compliance with the Ecodesign Directive 2009/125/EC. The closest authentic copy of this certificate available to us is the Hebrew duplicate (see related document hebrew-ce-certificate-duplicate). No local PDF copy of the English version is hosted on this site.

Michael Wagner was federally convicted and ordered to pay $130,834.25 in restitution for selling hydrocarbon refrigerants illegally marketed as drop-in replacements. Reported by Cooling Post (industry trade press).

Trademark application for ECO KOLD filed by Eco Gas International Inc. on March 30, 2022. Document is publicly accessible via USPTO TSDR (Trademark Status and Document Retrieval).

Panama Public Registry folio 752975 for Panama Green Innovations S.A. Status: SUSPENDED. The canonical folio (752975) is confirmed via panadata.net, which displays it as MERCANTIL_Folio_N_752975_S. The OpenCorporates URL linked via externalUrl also uses 752975 as its path identifier, referencing the same entity. Note: panadata.net uses a separate internal record id (542277) in its own URL path; that number is a panadata system identifier only and is not the official Panama registry folio. No local PDF copy is hosted on this site, as the Panama public registry does not publish official PDF exports for individual entity records.

Rule finalizing the unacceptability of highly flammable refrigerants for retrofitting existing systems designed for non-flammable refrigerants.

DOJ announcement of a $300,000 civil penalty against Enviro-Safe Refrigerants for marketing unapproved flammable hydrocarbon refrigerants. The canonical source is the DOJ press release linked via externalUrl; no local PDF copy is hosted on this site.

EPA imposed a $100,000 civil penalty on Northcutt Inc. for selling hydrocarbon refrigerants in violation of SNAP program rules. Referenced on EPA's R-22a Q&A page among other A3 hydrocarbon enforcement actions.

Academic study from 2011 conducted with an Eco Kold representative present, claiming a 36% efficiency improvement.

A 2009 safety/risk assessment by ITESM analyzing the flammability range of HCR 410.