Taylor's Polymer Test Kit (K-1190)

Kit Number
K-1190
Description
Taylor's polymer test employs a simple turbidimetric method. First, turbidity is filtered out of the sample water with the syringe filter included in the kit. When reagents are then added to the prepared sample, turbidity develops in proportion to the amount of polymer in the water. The degree of turbidity observed after a timed five-minute wait is compared to a set of printed standards and their interpolated values. The closest match indicates the concentration in parts per million polyacrylic acid. Interferences listed in the note below should be considered when running this test.
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Specifications
Polymers are widely used today in water treatment programs for both boiler and cooling systems. They are designed to work on hardness salts, iron, and suspended solids. these organic molecules act to increase the solubility of normal reaction products and to disperse solids so they do not accumulate on equipment surfaces. In boiler water the polymer treatment can be used alone or with other conditioners, like phosphates, phosphonates, and chelants. In cooling water the polymer is typically used in conjunction with corrosion inhibitors (such as orthophosphate or zinc) and/or scale inhibitors (such as phosphonates).
Polymer testing in boiler water is critical to the long-term performance of the program, especially when the polymer is used alone. Underdosing allows scale to form. Severely underdosing the polymer in relation to the hardness in the water can lead to calcium polyacrylate scaling. Overdosing not only incurs unwarranted chemical costs, but also can increase corrosion in the boiler system. Moreover, since polymers are organic, they are susceptible to thermal degradation at high cycles of concentration (over 50 cycles). For all these reasons the active polymer concentration should be tested regularly.
In cooling water the polymer can be affected by various stresses in the system, such as a high level of oxidizing biocide or a high Holding Time Index (HTI). It can be unwise to assume the polymer is present at the required level based on phosphonate and tracer tests that do not directly measure the polymer itself.
Taylor's polymer test employs a simple turbidimetric method. First, turbidity is filtered out of the sample water with the syringe filter included in the kit. When reagents are then added to the prepared sample, turbidity develops in proportion to the amount of polymer in the water. The degree of turbidity observed after a timed five-minute wait is compared to a set of printed standards and their interpolated values. The closest match indicates the concentration in parts per million polyacrylic acid. Interferences listed in the note below should be considered when running this test.
Note: All polymer test apparatus should be disassembled and thoroughly rinsed with distilled, deionized, or tap water between tests. Cationic surfactants and polyphosphates are positive interferences at all levels. Negative interferences include alkalinity > 300 ppm CaCO3; anionic surfactants at all levels; azoles; fluoride > 2o ppm; glutaraldehyde > 50 ppm; hardness > 700 ppm CaCO3; iron; molybdenum > 10 ppm; PBTC, HEDP, and ATMP; orthophosphate; silica; sulfate > 1,000 ppm; TDS > 1,500 ppm; zinc > 100 ppm.
User Benefits
- Test kits come complete with all necessary reagents and equipment.
- These test kits are practical for both on- and off-site testing.
- Drop tests utilize a colour change to signal the endpoint - no calculations necessary to determine final values.
- Waterproof instructions are printed on plastic-impregnated paper that resists fading and tearing.
- Custom-molded, durable plastic cases provide safe storage for all tests.
- Proven chemistries are based on Standard Methods for the Examination of Water and Wastewater, APHA, Washington, DC, and/or American Society for Testing and Materials, ASTM, Philadelphia, PA. Some methods use proprietary chemistry developed by Taylor Technologies.