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KEROSENE-CHALK TEST PROCEDURE
1. SCOPE:
This test procedure shall be used to check the weld joint of shell to annular
plate.
2. PURPOSE:
The purpose of this procedure is provide a necessary guide line to carry out oilchalk test to check the weld joint of shell to annular plate.
3. SURFACE PREPARATION:
The surface to be examined and the adjacent area within at least 1" shall be
cleaned thoroughly, must be dry and free from dirt, oil, grease, scale, welding
flux, spatters, paint and other foreign matter that could obstruct surface
openings or otherwise interfere with the examination.
4. APPLICABLE CODE:
API 650 Sec (Clause 7.2.4 (d)) / ASME Section V article 6).
5. PROCEDURE:
After completion of root weld from inside of the shell to bottom joint, apply wet
chalk solution by brush on the root weld uniformly.
Allow the weld joint to dry thoroughly and then spray diesel/ kerosene on the
opposite side of the weld (outside) by using the hand spray pump.
6. INSPECTION AND ACCEPTANCE CRITERIA:
After the application of the penetrant oil, hold it as per the instruction of the
Engineer-in-charge. (Duration time - 4 hrs for light diesel ,high flash point
penetrating oil) API 650 Cl 7.2.4 (d) Edition XI
th
.
Examine the root weld visually for the evidence of wicking.
7. REPAIR AND RETEST:
If any defect found then the same shall be repaired as per the approved
procedure.
Re examine the repair spot and additionally minimum 150mm. for repair spot on
both directions.
Repeat the process until there is no evidence of leaking.
After completion of the test thoroughly clean the joint from both sides for the
further welding.
8. INSPECTION REPORT:
Test shall be carried out jointly and to the satisfaction of the Engineer-in-charge.
Test to be recorded in the approved format.
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Which US County has had most tornadoes?
The correct Answer to the question is Weld County, Colorado with 252 reported tornadoes (1950-2010).
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What US counties have the most tornadoes?
all in the tornado alley... and they are parts of Texas, Oklahoma, Kansas, Nebraska, eastern Colorado and western Iowa, and is characterized by a high frequency of strong and violent tornadoes and a relatively consistent season from year to year okay ? The correct Answer to the question is Weld County, Colorado with 252 reported tornadoes (1950-2010).
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One common method of testing welds is by X-ray.
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Absorbs water and nutrients:))
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