Requirements for use

Stake s reagent dissolve 30 g of ferrous sulfate and 20 g of tartaric acid in water and dilute to 1 liter. When required for use, add strong ammonia until the precipitate first formed is dissolved. 

Sodium, generally about 99.9% Na assay, is available in two grades regular, which contains 0.040 wt % Ca, and nuclear (low Ca), which has 0.001 wt % Ca. Both have 0.005 wt % Cl . The nuclear grade is packed in specially cleaned containers, and in some cases under special cover atmospheres. A special grade of sodium low in potassium and calcium (<10 ppm) is achievable to meet requirements for use in manufacture of the more newly developed sodium—sulfur batteries. 

Specialized training is an absolute requirement for technical service personnel. A typical example is a person involved in supporting a polymer for which the use is the manufacture of rotationaHy molded consumer products. The technical service person is expected to be reasonably familiar with topics such as polymer rheology evaluations, gel-permeation chromatography, rotational mol ding, color science, regulatory requirements for use, mechanical and photochemical behavior of the pigmented polymer, optics, and so forth. Expertise of this variety caimot be expected to be obtained without careful... 

Requirements. Automotive brakes must satisfy a certain set of consumer expectations, which iacludes safety, comfort, durabiUty, and reasonable cost. In technical terms, these expectations are translated iato a set of specific requirements such as high and stable friction, no or minimal vibration and noise, and low wear rates for the friction material and rotor mating surfaces, all of which have to be achieved simultaneously at a reasonable cost. Particularly, the performance has to be stable under varying appHcation conditions over extremes ia temperature, humidity, speed, and deceleration rate for occasional or many consecutive stops. The requirements for use ia machines are less stringent. 

The theoretical requirement for use of Eq. (14-190) is that the microscale of turbulence This is satisfied in most gas systems. For example, in three cases,... 

The document availability requirement applies to both internal and external documents alike. Customer documents such as contracts, drawings, specifications, and standards need to be available to those who need them to execute their responsibilities. Often these documents are only held in paper form and therefore distribution lists will be needed to control their location. If documents in the public domain are required, they only need be available when required for use and need not be available from the moment they are specified in a specification or procedure. You should only have to produce such documents when they are needed for the work being undertaken at the time of the audit. However, you would need to demonstrate that you could obtain timely access when needed. If you provide a lending service to users of copyrighted documents, you would need a register indicating to whom they were loaned so that you can retrieve them when needed by others. 

Scheduled maintenance Work performed at a time specifically planned to minimize interruptions in machine availability e.g. changing a gearbox when machine is not required for use (includes predictive and preventive maintenance). 

The process engineer must summarize in some form the raw material and utility requirements for use by others. For example, the civil engineer is interested in waste water and sanitary sewer flows for proper layout studies. He is also in need of special requirements for site devel-... 

The key requirements for using Si-Cl functional initiators to produce polymers carrying Si Cl termini by carbenium ion polymerization are i) Si-Cl should be inert toward aUcylaluminum coinitiators, ii) Si-Cl should not react with propagating carbenium ions, in) chain transfer to monomer should be negligible so as to end up with one Si-Cl head-group per polymer chain. 

The last chapter in this introductory part covers the basic physical chemistry that is required for using the rest of the book. The main ideas of this chapter relate to basic thermodynamics and kinetics. The thermodynamic conditions determine whether a reaction will occur spontaneously, and if so whether the reaction releases energy and how much of the products are produced compared to the amount of reactants once the system reaches thermodynamic equilibrium. Kinetics, on the other hand, determine how fast a reaction occurs if it is thermodynamically favorable. In the natural environment, we have systems for which reactions would be thermodynamically favorable, but the kinetics are so slow that the system remains in a state of perpetual disequilibrium. A good example of one such system is our atmosphere, as is also covered later in Chapter 7. As part of the presentation of thermodynamics, a section on oxidation-reduction (redox) is included in this chapter. This is meant primarily as preparation for Chapter 16, but it is important to keep this material in mind for the rest of the book as well, since redox reactions are responsible for many of the elemental transitions in biogeochemical cycles. 

State and Municipal Health Department Requirements for Use of Common Residual Insecticide Sprays... 

Because these mechanism-based inactivators rely on the chemistry of the enzyme active site, they are often highly selective for the target enzyme and thus provide the specificity required for use as drug molecules. 

Nitrocellulose is usually handled wet and containing approximately 30% of water. Under these conditions it can be considered as a nonexplosive material when the nitrogen content does not exceed 12-6%. More highly nitrated cellulose is known as guncotton and is explosive even when moderately wet. When dry, nitrocellulose of all types is an extremely sensitive and dangerous explosive. Dry nitrocellulose is required for use in certain types of explosives and is then prepared by slow drying of the wet material in a current of warm air. 

It was the development of the rotating glassy carbon electrode with a preplated or co-plated mercury film that gave this technique the sensitivity and resolution required for use in seawater. 

Requirements for use of those devices in our kilo lab were defined as follows ... 

In summary, the research effort aimed towards active, chemoselective hydrogenations of certain C=0 and C=N bonds have delivered several catalysts that approach the level of activity required for use in the synthesis of alcohols and amines. However, other classes of substrate require considerable additional investigations to be conducted before homogeneous catalysts may be considered for this purpose. 

A fundamental requirement for using a sewer as a treatment system followed by subsequent physicochemical or mechanical treatment is often the installment of aerators. Contrary to what has been proposed by a number of authors, the limitation in using the sewer as a treatment system is normally not the biomass. Addition (circulation) of activated sludge is, therefore — except for cases with excessive aeration — in general, of no interest. Substitution of oxygen with nitrate as electron acceptor is possible, but a reduced rate of transformation is expected. 

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