Plumbing Connection 4-2015

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PLUMBING CONNECTION SUMMER 2015 45
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DEZINCIFICATION TEST RECORD
Part Description: ¾” Ball Valve
Direction rod, drawn tube and components
machined from these products Forgings and castings
Con. cast rod and
components machined
from these products
Direction of grain flow Perpendicular to grainflow Thickest Section Thickest Section
Magnification 50x 50x 50x 50x
Area of exposed surface 50mm2
No. of Measurements 25 25 25 25
Average Depth of
Dezincification 640 µm
Maximum Depth of
Dezincification 690 µm
Requirement for Average
Depth 300 microns maximum 100 microns maximum 100 microns maximum 100 microns maximum
Type of Dezincification a & ß’ Attack
Compliance to Product
Standard
*Test completed in accordance with the Australian Standard AS2345 (2006) - See method in Appendix C (75ºC±3 for a duration of 24
hours ±0.5h)
DEZINCIFICATION TEST RECORD
Part Description: Threaded Socket Hexagon - 15mm
Extruded rod, drawn tube and components
machined from these products
Forgings and castings
Con. cast rod and
components machined
from these products
Direction of grain flow Perpendicular to grainflow Thickest Section Thickest Section
Magnification 50x 50x 50x 50x
Area of exposed surface 140mm2
No. of Measurements 25 25 25 25
Average Depth of
Dezincification 367 µm
Maximum Depth of
Dezincification 656 µm
Requirement for Average
Depth 300 microns maximum 100 microns maximum 100 microns maximum 100 microns maximum
Type of Dezincification a & ß’ Attack
Compliance to Product
Standard
*Test completed in accordance with the Australian Standard AS2345 (2006) - See method in Appendix C (75ºC±3 for a duration of 24
hours ±0.5h)