Term
| Turbidity is the measurement (in the lab) |
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Definition
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Term
| When measuring turbidity, color will incrase the reading. |
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Definition
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Term
| When high suspended solids limit the side scatter, the turbidity reading will be higher. |
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Definition
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Term
| Samples filtered through a 0.45 micron filter will not scatter light. |
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Definition
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Term
| Black carbon particles in water will always absorb light |
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Definition
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Term
| Light detected by photocell from suspended solids causes stray light. |
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Definition
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Term
| Stray light is caused by... |
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Definition
- Glass imperfection
- fingerprints
- scratches
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Term
| Change in light intensity over time will cause... |
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Definition
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Term
| The advantage of the radio turbidity meter is... |
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Definition
| its ability to color compensate |
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Term
| The advantage of the dual beam method of turbidity measurement is... |
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Definition
| the reduction in frequent calibration |
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Term
| The type of light required by USEPA in a turbidity meter is ... |
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Definition
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Term
| Volatile Total Solids are dtermined by heating the sample to what temperature? |
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Definition
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Term
| What type of dishes is used in determining total solids? |
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Definition
- Porcelain
- Silica glass
- platinum
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Term
| What method of drying is used in the total solids test? |
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Definition
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Term
| What is the minimum weiging accuracy required for the total solids test? |
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Definition
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Term
| What equipment is required to determine the total solids test? |
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Definition
| Pipet, analytical balance, evaporative dish, dessicator, drying oven |
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Term
| The purpose of the dessicator is to ... |
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Definition
| Prevent moisture from entering the sample |
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Term
| The correct range of residue for the total solids test is ... |
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Definition
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Term
| What percent of samples should be analyzed in duplicate? |
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Definition
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Term
| What reason(s) would there be for weight change during the weighing of the sample? |
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Definition
- Moisture leaving the sample
- Moisture entering the sample
- sample was warmer than the room temperature
- dessicant needed to be changed
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Term
| Duplicate samples should be within... |
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Definition
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Term
| Calculate the total solids if the dish weighed 21.1 g and the residue weighed 0.3 g for 100 mL sample. |
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Definition
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Term
| Name an interference to the total solids test |
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Definition
- oil
- grease
- floating material
- hydroscopic material
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Term
| The muffle furnace is used to determine the amount of... |
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Definition
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Term
| Calculate the amount of total solids if the dish weighed 20 g and the dish plus residue weighed 21 g with a sample volume of 100 ml. |
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Definition
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Term
| The total solids test will measure... |
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Definition
- the suspended solids in the sample
- The dissolved solids in the sample
- inorganic solids
- organic solids
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Term
| According to USEPA specifications, the distance travled by incident light and scattered light within the sample tube shall be... |
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Definition
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Term
| According to USEPA specifications, the angle of light acceptance by detector shall be |
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Definition
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Term
| The spectural peak response shall be between... |
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Definition
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Term
| Dilution water should be filtered through a ... |
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Definition
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Term
| The stock standard for turbidity measurement is... |
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Definition
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Term
| Nephelometric turbidity measurement refers to... |
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Definition
| measuring the light that is reflected into the photocell |
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Term
| Manufactured supplied standards equal to the Formazin standard are considered... |
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Definition
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