Equipment in light liquid service

{
  "id": "MLC-T-ENV-009988",
  "term": "Equipment in light liquid service",
  "field": "Environment",
  "term_source": "Equipment in Light Liquid Service",
  "definition": "1. Piece of equipment contains a liquid that meets the conditions specified in § 60.485(e).\n\n2. Piece of equipment in organic hazardous air pollutant service contains a liquid that meets the following conditions:(1) The vapor pressure of one or more of the organic compounds is greater than 0.3 kilopascals at 20 °C;(2) The total concentration of the pure organic compounds constituents having a vapor pressure greater than 0.3 kilopascals at 20 °C is equal to or greater than 20 percent by weight of the total process stream; and(3) The fluid is a liquid at operating conditions. (Note: Vapor pressures may be determined by the methods described in 40 CFR 60.485(e)(1).)\n\n3. Piece of equipment contains a liquid that meets the conditions specified in § 60.593(c).\n\n4. Piece of equipment in regulated-material service contains a liquid that meets the following conditions:(1) The vapor pressure of one or more of the organic compounds is greater than 0.3 kilopascals at 20° C,(2) The total concentration of the pure organic compounds constituents having a vapor pressure greater than 0.3 kilopascals at 20° C is equal to or greater than 20 percent by weight of the total process stream, and (3) The fluid is a liquid at operating conditions. (Note to definition of “In light liquid service”: Vapor pressures may be determined by standard reference texts or ASTM D-2879.)\n\n5. Piece of equipment contains a liquid that meets the conditions specified in § 60.485(e) or § 60.633(h)(2).\n\n6. Piece of equipment in regulated material service contains a liquid that meets the following conditions: (1) The vapor pressure of one or more of the compounds is greater than 0.3 kilopascals at 20 °C.(2) The total concentration of the pure compounds constituents having a vapor pressure greater than 0.3 kilopascals at 20 °C is equal to or greater than 20 percent by weight of the total process stream.(3) The fluid is a liquid at operating conditions. Note to definition of “in light liquid service”: Vapor pressures may be determined by standard reference texts or ASTM D-2879, (incorporated by reference, see § 98.7).\n\n7. Piece of equipment in regulated material service contains a liquid that meets the following conditions:(1) The vapor pressure of one or more of the organic compounds is greater than 0.3 kilopascals at 20 °C (0.04 pounds per square inch at 68 °F);(2) The total concentration of the pure organic compound constituents having a vapor pressure greater than 0.3 kilopascals at 20 °C (0.04 pounds per square inch at 68 °F) is equal to or greater than 20 percent by weight of the total process stream; and(3) The fluid is a liquid at operating conditions. (Note: Vapor pressures may be determined by standard reference texts or American Society for Testing and Materials (ASTM) D-2879, available from American Society for Testing and Materials, 1916 Race Street, Philadelphia, Pennsylvania 19103; or University Microfilms International, 300 North Zeeb Road, Ann Arbor, Michigan 48106.)\n\n8. Piece of equipment in organic HAP service contains a liquid that meets the following conditions:(1) The vapor pressure of one or more of the organic compounds is greater than 0.3 kPa at 20 °C;(2) The total concentration of the pure organic compounds constituents having a vapor pressure greater than 0.3 kPa at 20 °C is equal to or greater than 20 percent by weight of the total process stream; and(3) The fluid is a liquid at operating conditions. Note: To definition of “In light liquid service: Vapor pressures may be determined by the methods described in 40 CFR 60.485(e)(1).\n\n9. Piece of equipment contains a liquid that meets the conditions specified in § 60.5402b(d)(2) or § 60.5403b.\n\n10. Piece of equipment contains a liquid that meets the conditions specified in § 60.5402c(d)(2) or § 60.5406c.",
  "subject": "Built environments",
  "references": [
    "40 CFR 60.481 (CFR 2013); 40 CFR 60.481a (CFR 2013); 40 CFR 60.481b (CFR 2024)",
    "40 CFR 63.1251 (CFR 2013); 40 CFR 63.101 (CFR 2024)",
    "40 CFR 60.591 (CFR 2013); 40 CFR 60.591a (CFR 2013)",
    "40 CFR 63.1001 (CFR 2013); 40 CFR 63.1020 (CFR 2013)",
    "40 CFR 60.631 (CFR 2013)",
    "40 CFR 98.128 (CFR 2013)",
    "40 CFR 65.2 (CFR 2013)",
    "40 CFR 63.1361 (CFR 2013)",
    "40 CFR 60.5430b (CFR 2024)",
    "40 CFR 60.5430c (CFR 2024)"
  ],
  "url": "https://mlchart.com/terminology/environment/equipment-in-light-liquid-service/"
}