But wait, in "also known as dichlorodifluoromethane", "dichlorodifluoromethane" is the IUPAC name of R12, so it's a proper noun. So leave it.
2. "HVAC associations: Industry associations, such as the Air-Conditioning, Heating, Refrigeration Certification Board (ACHR), offer Ph charts and other resources for HVAC professionals." - "HVAC associations" can be "HVAC organizations" or "Industry bodies". - "Offer" could be "Provide", "Supply", "Provide access to". - "Resources" might be "Materials", "Content", "Assets". So: "HVAC organizations: Professional entities, including the Air-Conditioning, Heating, Refrigeration Certification Board (ACHR), Offer Thermo diagrams and additional content for HVAC experts. R12 Refrigerant Ph Chart Pdf
Gaining the R12 P-H Chart PDF Access the R12 Pressure-Enthalpy Diagram PDF from multiple web resources, including: Looking at the text
So "refrigeration systems" would become coolingchillersmechanisms, etc. those should remain unchanged. Similarly
Also, the user mentioned keeping brand names. Looking at the text, there's "R12 Ph Chart" and "R12 refrigerant". Since "R12" is a brand or specific identifier, those should remain unchanged. Similarly, technical terms like "isothersm" (probably a typo for isotherms) need the correct term and alternatives.