TESTED QUESTIONS AND ANSWERS GRADED
A+
◍ ISO 8502-6 / SSPC Guide 15, Method A1 Answer:Bresle Patch (
Quantitative ) :
- Add 3ml of deionized water
- Withdraw and inject water a minimum of 4 times
◍ ASTM D7393 Answer:Vial Test
◍ ISO 8504-3 Answer:Solvent Cleaning
- Removal of both visible & non-visible contaminants.
- Should be followed by a rinse with potable ( tap ) water.
◍ NACE SP0892 Answer:Linings over concrete for immersion service
( Holiday Testing )
, ◍ ASTM D4285 Answer:Blotter Test
- 1 minute minimum : 24" from paper.
◍ ISO 8501-1 Sa 2 Answer:Thorough Blast Cleaning
- Free of all Visible oil, grease, dirt.
- Free of MOST mill scale, rust, coating.
◍ Abrasives are generally located where on the pH scale?
Answer:Abrasives are generally neutral, 6-8 pH.
◍ True or False : pH testing of abrasives will tell whether the material is
acidic or alkaline - but will not detect the presence of chlorides :
Answer:True
◍ True or False : The most accurate of the pH testing methods is a
handheld pH meter. Answer:True
◍ ISO 11127-7 Part 7 Answer:Determination of water-soluble chlorides