a. Reference Standard:
1. Japan Road Association, Painting Manual for Steel Highway Bridges (2014 Edition)
2. ISO 8502-5 Measurement of Chloride on Steel Surface prepared for painting ( Ion Detection Tube Method)
b. Scope of Application
This is to conduct a field test for Chloride Ions present in during the transportation in the sea of the steel structures.
c. Apparatus and Materials
- Chloride ion detection tube ( 201SA, 201SB, 201SC)
- Deionized Water (Purified Water ) 150 ml
- Cotton Gauze 330x30 cm
- Rubber Gloves
- Masking Tape 20mm thickness
- Measurement Tape
- Poly beakers 100ml, 250ml capacity
d. Procedure
Test area is approximately 50x50cm approximate the shape depending on the size and shape then apply masking tape.
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| Figure. 1 : Actual inspection form used in salinity test |
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| Figure 2: Marking 50x50cm of test area |
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| Figure 3: Soak the cotton gauze in the larger beaker and wipe horizontally taking out all the dirt. |
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| Figure 4. Wipe vertically covering all the area until totally cleaned. |
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| Figure 5. clean the gauze in the 100ml beaker to collect all the dirt and foreign material. Repeat 3-5 times |
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| Figure 7.: Combine the 50ml and 100ml |
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| Figure 8.: Immerse on the end of ion detection test tube in the test sampling water for chlorination. |
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| Figure 9.: Observe the result by chloride ion detection tube. Unit of cholride ion concentration is ppm |
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| Figure 10: Observe for 2-3 minutes to collect the result of the test |
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| Figure 11: Record the result of the test. Salinity Test should marked pass if the ppm is less than 100ppm |
