UL's Rebuilt Products Program for this category does not allow for the rebuilding or refurbishing or pressure vessels.

　　CONDITIONS OF ACCEPTABILITY

　　Unless specified otherwise in the individual Recognitions, consideration is to be given to the following Conditions of Acceptability when these components are employed in the end-use equipment:

　　1. These components may have been investigated for systems under pressure. The hydrostatic test pressure rating is the maximum hydrostatic pressure at which these products were tested. The maximum system pressure/vacuum rating is denoted as "Pressure Rating," and is in terms of pounds per square in (psi) for compressors, and inches mercury (Hg) for vacuum pumps.

　　2. Special consideration should be given to polymeric materials when a product is investigated for a specific application. The Materials Rating should be suitable for the application as outlined in the end-product standard or specifications. The Materials Ratings are designated "MR":

　　MR=1 Unit employs "HB" minimum materials.

　　MR=2 Unit employs "V-2" minimum materials.

　　3. These products may have incomplete construction features which would need to be addressed in the end product. These Incomplete Construction Features, designated "ICF," include:

　　ICF=1 Guarding of hazardous moving parts may be required.

　　ICF=2 Suitable enclosure of live parts may be required.

　　ICF=3 Strain relief may be required.

　　ICF=4 A suitable pressure relief device may be required as the unit is capable of producing pressures above the load pressure rating of the unit.

　　ICF=5 Supply cord may be required.

　　4. These products have not been investigated for instruction manual requirements or for cautionary markings which may be required in the end-use application.

　　5. The suitability of the end-product connections to the motor terminals and the need for any strain relief and torque tests on the connection lead or power supply cord need to be determined in the end-product investigation.

　　6. The units have been investigated for use in normal use ambient (40°C maximum).