Surface Quality. A surface quality to a mean roughness depth of Rz 0,25 (DIN EN ISO 4287) or AA 1 (ASME B46.1) must be achieved on both sealing surfaces through lapping. In the case of O-rings and plastics sealing (see chapter 8 and 9), different surface qualities may be as shown in the illustrations. These sealing surfaces may be achieved through smooth turning. Disclosure cat.: I proofread by: MRo publish date: 10/22/23 effect. date: 10/23 author: Haa released by: XX replaces: initial status: Published resp. depart.: TD date of release: 10/17/23 revision No.: 0 doc. type: LGS change rep. No.: NA retention period: 10y. prot. class: public 7 Refinishing of nozzle, full nozzle, and disc POSV, metal sealing Work is to be carried out according to Figure 1 to Figure 3 and Table 1 to Table 2. <.. image(Ein Bild, das Entwurf, Diagramm, Reihe, Zeichnung enthält. Automatisch generierte Beschreibung) removed ..> <.. image(Ein Bild, das Diagramm, Entwurf, Zeichnung, Reihe enthält. Automatisch generierte Beschreibung) removed ..>
Surface Quality. A surface quality to a mean roughness depth of Rz 0,25 (DIN EN ISO 4287) or AA 1 (ASME B46.1) must be achieved on both sealing surfaces through lapping. In the case of plastic and soft sealing, different surface qualities may be as shown in the figures. These sealing surfaces may be achieved alternatively through smooth turning.
Surface Quality. Scratch, contamination. Die with scratches visible to the eye, covering two pixels or more, a non-removable contamination is rejected if it covers more than three pixels with no two adjacent. Any die with these defects is rejected.
Surface Quality. Spread the HMA without tearing the surface. Strike a finish that is smooth, free of segregation, true to cross section, uniform in density and texture and free from surface irregularities. If the pavement does not comply with all of these requirements, plant production and paving will be suspended until the deficiency is corrected. The Engineer will check segregation and uniformity of density using methods outlined in Section 5.8.3, Segregation Check Using the Nuclear Density Gauge, Part V. For shoulders with a plan width of less than or equal to 3 feet, and placed at the same time as the traveled way, do not take nuclear density readings on the shoulder nor within 1 foot of the shoulder unless the pavement section is uniform across the entire roadway. The acceptable criteria for density uniformity are in TABLE 602-7. TABLE 602-7: SEGREGATION AND UNIFORMITY OF DENSITY CHECK Mix Designation Maximum Density Range (highest minus lowest) Maximum Density Drop (average minus lowest) All 4.4 lbs./cu. ft. 2.2 lbs./cu. ft. Whenever the results from 2 consecutive density profiles fail to comply with both of the requirements listed in TABLE 602-7, plant production and paving will be suspended. Follow the procedures listed in the Profile Evaluation Subsection of Section 5.8.3, Segregation Check Using the Nuclear Density Gauge, Part V until production may be resumed. Joint density testing and the associated requirements listed below do not apply for HMA lift thicknesses less than or equal to 1 inch. Evaluate the longitudinal joint density using methods outlined in Section 5.8.4 Joint Density Evaluation Using the Nuclear Density Gauge, Part V. Although it is the Contractor’s responsibility to perform the joint density evaluation, the Engineer may make as many independent joint density verifications as deemed necessary at the random sample locations. The Engineer’s results will be used for acceptance for joint density, whenever available. The acceptable criteria for joint density are in TABLE 602-8. TABLE 602-8: JOINT DENSITY REQUIREMENTS Nuclear Gauge Readings Requirement Interior Density minus Joint Density ≤ 3.0 lbs./cu. ft. OR Joint Density ≥ 90.00% of Gmm If the results of 2 consecutive density profiles fail to comply with TABLE 602-8, the plant production and paving operations will be suspended. Follow the procedures listed in the Joint Evaluation Subsection of Section 5.8.4 Joint Density Evaluation Using the Nuclear Density Gauge, Part V, until production may be r...
Surface Quality. Sweet potatoes should be of the same variety. The overall condition should be flawless and without mud or other dirt particles. There should be no low-quality sweet potatoes that are deformed, cracking, beaten by buds, or putrid.
Surface Quality
