Font size
WorksheetsF11 EMCO TRAINING (REVISED CHEMICAL PARAMETERS TEST METHODS)
Total questions: 12
Worksheet time: 5mins
What is the new method of checking total solid content (TSC) for incoming latex?
Heat 0.5g sample in oven at 150°C for 30 minutes.
Use filtration method
Test using NIRS machine
Test using colorimeter
What is Total Solid Content (TSC) of latex?
Mass of the rubber coagulated by acid
Mass percentage of the solid rubber for both suspended and dissolved particles
Mass percentage of the solid rubber for suspended particle
Mass percentage of the solid rubber for dissolved
Which steps should be done before we pour latex sample into the NIRS cup to check TSC and DRC? (Multiple answers)
Run hardware and performance test
Check quartz sample and ensure it is passed
Stir the latex sample
Clean NIRS cup
What is the difference between previous and new method to check NR PF coagulant for cyclaron 1?
Previous method involve titration, new method involve filtration
Previous method involve using colorimeter, new method involve NIRS
Previous method involve TSC and specific gravity, new method involve filtration
Both method are the same
What are the main reasons of revising old method for NR PF coagulant (cyclaron)? (Multiple answers)
Moving towards automation
Specific gravity may vary depending on coagulant temperature
Specific gravity can be higher than TSC, hence results are invalid
Results have low repeatability and reproducibility
Why do we move from manual testing to automated testing for Total Suspended Solid (TSS) of Final Discharged water? (Multiple answers)
To fasten testing time
To reduce the usage of filter paper
To utilize colorimeter
To eliminate human error
What is Total Suspended Solid (TSS)? Read answer carefully.
Dry weight of suspended particles, that are dissolved, in a water sample
Dry weight of suspended particles, that are not dissolved, in a water sample
Dry weight of dissolved particles, that are suspended, in a water sample
Dry weight of dissolved particles, that are not suspended, in a water sample
What is Dry Rubber Content (DRC)?
The mass percentage of the solid rubber for both suspended and dissolved
The dry weight of suspended particles, that are not dissolved, in a water sample
The total dissolved solid rubber
The mass of the rubber coagulated by acid, and dried from parts mass of latex
Total solid content (TSC) and Dry Rubber Content (DRC) are the same. True of false?
True
False
What is PF coagulant?
Powder formulation coagulant
Powder formation coagulant
Powder free coagulant
Powder fragrance coagulant
What is the pore size of the filter paper used for revised method of PF coagulant (cyclaron 1) ?
0.4 μm
0.5 μm
1.4 μm
1.5 μm
"Total suspended solid (TSS) particle size is larger than 2μm. Whereas total dissolved solid (TDS) particle size is smaller than 2μm". Is this true?
Yes
No
