Document: NRC Regulatory Guide
Document ID: 08cebcdf-2e81-4e08-a508-9f6b4701c0a5
Document Type: regulatory_guide
Title: Design, Fabrication, and Materials Code Case Acceptability, ASME Section III (Rev. 40)
Source: NRC Regulatory Guide Division 1
Source URL: https://www.nrc.gov/docs/ML2219/ML22195A282.pdf
Revision Date: 2023-05
Chapter: 
Section ID: RG-1.84
CFR Part: 
CFR Title: 

Content:
(b) Pipe Surface Alignment: A change in the pipe outside diameter (O.D.) surface misalignment of more than 10 percent of the wall thickness of the thinner member to be fused. (c) PE Material: Each lot of polyethylene source material to be used in production (as mentioned in paragraph (XXVI-2310(c)). (d) Wall Thickness: Each thickness to be fused in production (as mentioned in paragraph (XXVI-2310(c)). (e) Diameter: Each diameter to be fused in production (as mentioned in paragraph (XXVI-2310(c)). (f) Cross-sectional Area: Each combination of thickness and diameter (as mentioned in paragraph (XXVI-2310(c)). (g) Position: Maximum machine carriage slope when greater than 20 degrees from horizontal (as mentioned in paragraph (XXVI- 4321(c)). (h) Heater Surface Temperature: A change in the heater surface temperature to a value beyond the range tested (as mentioned in paragraph (XXVI-2321). (i) Ambient Temperature: A change in ambient temperature to less than 50⁰F (10⁰C) or greater than 125⁰F (52⁰C) (as mentioned in paragraph (XXVI-4412(b)). (j) Interfacial Pressure: A change in interfacial pressure to a value beyond the range tested (as mentioned in paragraph (XXVI-2321). (k) Decrease in Melt Bead Width: A decrease in melt bead size from that qualified. (l) Increase in Heater Removal Time: An increase in heater plate removal time from that qualified. (m) Decrease in Cool-down Time: A decrease in the cooling time at pressure from that qualified. (n) Fusing Machine Carriage Model: A change in the fusing machine carriage model from that tested (as mentioned in paragraph (XXVI- 2310(d)). 1/1/22 DG-1405, Page 36 CODE CASE NUMBER TABLE 4 ANNULLED CONDITIONALLY ACCEPTABLE SECTION III CODE CASES TITLE/CONDITION ANNULMENT DATE (2) When performing procedure qualification for High Speed Tensile Impact testing of butt fusion joints in accordance with XXVI-2300 or XXVI-4330, if the specimen breaks away from the fusion zone it must be retested. When performing fusing operator