288 index testing your

Place a cuvette containing distilled water into the cell compartment. (Alternatively, your instructor may designate that an indexed 13 x 100-mm test tube be used as the cuvette. The frosted identification mark on the cuvette, or the mark on your indexed test tube, must be directed toward the front of the instrument.) Adjust the wavelength dial to 600. nm, and then rotate the 100% control dial until the meter reads 100% T. Remove the cuvette, and replace it with the cuvette containing the solution of [Cu(H20)e]S04. Record the % T in TABLE 17.IE. Remove the cuvette, and replace it with the cuvette containing the solution of 0.5 M aqueous ammonia, NH3, as the "blank" to adjust the 100% T. Remove the cuvette, and replace it with the solution of the copper-ammine complex solution. Record... 

The documents that define the calibration process themselves are derived documents and therefore will be governed by your control procedure. They do not need to be listed along with all your other control and operating procedures in the index of quality system documents. A separate index of calibration methods should be maintained. Calibration methods are like test and inspection procedures, they are product specific. 

TSCATS is an online index to unpublished, nonconfidential studies covering chemical testing results and adverse effects of chemicals on health and ecological systems. The studies are submitted by US industry to EPA under several sections of the Toxic Substance Control Act (TSCA). There are four types of documents in the database Section 4 chemical testing results, Section 8(d) health and safety studies, Section 8(e) substantial risk of injury to health or the environment notices, and voluntary documents submitted to EPA known as a For Your Information (FYI) notice. 

When performing scale-up tests, be sure to take enough samples to give an accurate description of the mixture state in the vessel. Furthermore, be wary of how you interpret your samples know what the mixing index means and what your confidence levels are. 

Effective mixing of the test solution and added reagents is essential. This can be achieved by holding the test tube between the thumb and index finger of one hand and flicking the tube with the index finger of your other hand. Alternatively, solutions can be mixed by bubbling air from a Pasteur pipette held at the bottom of the test tube. 

For Part A, you should work as part of a team. Five teams will be needed. Each team should rotate through four stations in the lab, one for the water miscibility test, one for density measurement, one for viscosity measurement, and one for refractive index measurement. Each team should be assigned 2 of the 10 liquids to test at each station. As the results are obtained at each station, each team should record the results on the grid similar to the example given in the SOP. Perhaps you could put the same grid on a blackboard accessible and visible to each team. At the end of Part A, each worker can then fill in the entire grid in his/her notebook and have a complete set of data for the 10 compounds. This data will then be used in Part B to identify unknowns that are issued to each worker. In Part B, each worker should test several unknowns and identify each based on how well their properties match up with those measured in Part A. The property of odor may be used in Part B for confirmation if desired, comparing unknowns with knowns. In Part B, it may not be necessary to measure all five properties if you can identify your unknowns with just a few tests. 

Each of you will be provided with two cuvettes. (Alternatively, your instructor may have you index and use two 13 x 100-mm test tubes.) These cuvettes are rather costly and must be handled with utmost care and only on the upper one-quarter of the outside surface. Fill both cuvettes three-... 

Transfer the withdrawn organic phase into a dry test tube or another dry conical vial if one is available. It is best to have the test tube or vial located next to the extraction vial. Hold the vials in the same hand between your index finger and thumb, as shown in Figure 12.6. This avoids messy and disastrous transfers. The aqueous layer (upper layer) is left in the original conical vial (Figure 12.5E). 

Make your research time more productive by having ASME documents available at your desk whenever you need them. With the American Society of Mechanical Engineers (ASME) documents available on CD-ROM you can view complete, full-text documents—exact images of the hardcopy originals—ri t at your own personal computer. The service contains the full text of all ASME Standards and Performance Test Codes. Included in every subscription is fhe comprehensive Worldwide Standards Service Index, which helps you locate standards by document number or by keyword. In addition to ASME documents, the Worldwide Standards Service Index contains document listings from approximately 400 of the world s leading standards developing bodies. The service is updated every 60 days to keep you abreast of all current revision activity. 

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