Product class

{
  "id": "MLC-T-ENV-022362",
  "term": "Product class",
  "field": "Environment",
  "term_source": "Product Class",
  "definition": "Group of polyether polyols with a similar pressure decay curve (or faster pressure decay curves) that are manufactured within a given set of operating conditions representing the decline in pressure versus time. All products within a product class shall have an essentially similar pressure decay curve, and operate within a given set of operating conditions. These operating conditions are: a minimum reaction temperature; the number of -OH groups in the polyol; a minimum catalyst concentration; the type of catalyst (e.g., self-catalyzed, base catalyst, or acid catalyst); the epoxide ratio, or a range for that ratio; and the reaction conditions of the system (e.g., the size of the reactor, or the size of the batch).",
  "subject": "Chemical substances",
  "references": [
    "40 CFR 63.1423 (CFR 2013)"
  ],
  "url": "https://mlchart.com/terminology/environment/product-class/"
}