Unique identifiers

The quahty manual should be organized to faciUtate referral to the quahty system standard. It should be brief and refer to other documentation for more detail. The manual should be under document control, ie, each page is uniquely identified as to date or revision number and its preparer. It is common practice to offer customers a copy of the manual upon request, ie, the manual should not be proprietary. 

The Colourindex (5) assigns Cl generic names to commercial dyes. This Cl name is defined as "a classification name and serial number which when allocated to a commercial product allows that product to be uniquely identified within any Colourindex AppHcation Class." This enables the particular commercial products to be classified along with other products whose essential colorant has the same chemical constitution. 

The rotor assembly shall have a unique identifieation number permanently marked on the shaft. Blade and disk residual life eurves shall be provided by the Seller. The disk/shaft attaeh-ment shall be redundant so that if the primary torque transmission path fails, a seeondary path will prevent separation of the disk from the shaft. 

X-ray Diffraction (XRD) is a powerful technique used to uniquely identify the crystalline phases present in materials and to measure the structural properties (strain state, grain size, epitaxy, phase composition, preferred orientation, and defect structure) of these phases. XRD is also used to determine the thickness of thin films and multilayers, and atomic arrangements in amorphous materials (including polymers) and at inter ces. 

Thin-film XRD is important in many technological applications, because of its abilities to accurately determine strains and to uniquely identify the presence and composition of phases. In semiconduaor and optical materials applications, XRD is used to measure the strain state, orientation, and defects in epitaxial thin films, which affect the film s electronic and optical properties. For magnetic thin films, it is used to identify phases and to determine preferred orientations, since these can determine magnetic properties. In metallurgical applications, it is used to determine strains in surfiice layers and thin films, which influence their mechanical properties. For packaging materials, XRD can be used to investigate diffusion and phase formation at interfaces... 

Solid state NMR is a relatively recent spectroscopic technique that can be used to uniquely identify and quantitate crystalline phases in bulk materials and at surfaces and interfaces. While NMR resembles X-ray diffraction in this capacity, it has the additional advantage of being element-selective and inherently quantitative. Since the signal observed is a direct reflection of the local environment of the element under smdy, NMR can also provide structural insights on a molecularlevel. Thus, information about coordination numbers, local symmetry, and internuclear bond distances is readily available. This feature is particularly usefrd in the structural analysis of highly disordered, amorphous, and compositionally complex systems, where diffraction techniques and other spectroscopies (IR, Raman, EXAFS) often fail. 

Unfortunately, any equation that does provide a good fit to a series of experimentally determined data sets, and meets the requirement that all constants were positive and real, would still not uniquely identify the correct expression for peak dispersion. After a satisfactory fit of the experimental data to a particular equation is obtained, the constants, (A), (B), (C) etc. must then be replaced by the explicit expressions derived from the respective theory. These expressions will contain constants that define certain physical properties of the solute, solvent and stationary phase. Consequently, if the pertinent physical properties of solute, solvent and stationary phase are varied in a systematic manner to change the magnitude of the constants (A), (B), (C) etc., the changes as predicted by the equation under examination must then be compared with those obtained experimentally. The equation that satisfies both requirements can then be considered to be the true equation that describes band dispersion in a packed column. 

CAS Number - Chemical Abstracts Service Registry Number A CAS (Chemical Abstracts Service) Registry Number is a unique identifier that tells you, for example, that aeetone and dimethyl ketone are actually the same substance. The Chemical Abstracts Service is a division of the American Chemical Society. OSHA only requires certain items on an MSDS and a CAS number is not one of them. However, authors of MSDS s are allowed to add additional information, such as the CAS number, if they desire. The numbers you see on trucks on the highway are not CAS Numbers, butU.S. Department of Transportation (DOT) codes, which are not necessarily specific to each chemical. Their aim is to assist emergency responders. 

Each reference or baseline data set must be clearly and completely identified. Most vibration-monitoring systems permit the addition of a label or unique identifier to any user-selected data set. This capability should be used to clearly identify each baseline data set. 

The phrase full Fast Fourier Transform (FFT) signature is usually applied to the vibration spectrum that uniquely identifies a machine, component, system, or subsystem at a specific operating condition and time. It provides specific data on every frequency component within the overall frequency range of a machine-train. The typical frequency range can be from 0.1 to 20,000 Hz. 

Nameplate data Each machine-train component has a vendor s nameplate permanently attached to its housing. The EIS should include all nameplate data, including the serial number that uniquely identifies a machine or component. 

There is a qualitative universality in the quantum behavior of class-3 rules, whose threshold plots typically consist of strong local oscillation patterns. Although clearly a maJiifestation of the fundamental additivity of probability amplitudes, the majority of patterns also possess distinctive local regularities by which evolutions defined by particular rules can be uniquely identified characteristic features of the... 

Eisele and Tanner (146) have devised a similar scheme for the measurement of [HO ] via the chemical conversion of HO to H2 S04 by the addition of S02 to a flowing reactor followed by chemical ionization of gas-phase sulfuric acid to H S04 . The H 04 ion is uniquely identified and quantified in the flowing gas sample by a mass spectrometer. This technique is capable of sensitive, realtime measurement of [HO ], and although relatively new, appears to be perhaps the best overall technique devised to date. 

Recently, Teymour and coworkers developed an interesting computational technique called the digital encoding for copolymerization compositional modeling [20,21], Their method uses symbolic binary arithmetic to represent the architecture of a copolymer chain. Here, each binary number describes the exact monomer sequence on a specific polymer chain, and its decimal equivalent is a unique identifier for this chain. Teymour et al. claim that the... 

In particular, consider the batches shown in Table I. The first two columns of the table indicate the product type and batch size. The next column gives the processing times for each operation. The fourth column gives a unique identifier to each batch composed of a prefix B-P, the... 

Fresh oxamyl standards were prepared for each fortification event. Concentrations of 50 and 400 qg mL analytical-grade oxamyl were prepared in a 20% acetonitrile-80% FIPLC-grade water solution. The solutions were tranferred in 1-mL aliquots into uniquely identified vials so that each vial contained the correct volume of oxamyl standard to fortify one quality control sample. The vials were shipped as needed during the course of the study to each field site. 

Which property—the atomic mass or atomic number—uniquely identifies a chemical element Explain how the property uniquely identifies each atom. 

The proteins uniquely identified in the whole section corresponded to proteins typically found in blood or associated with the extracellular matrix. LCM effectively minimized the presence of these proteins in the microdissected sample. The enrichment effect is better illustrated by comparing the relative quantities of proteins identified in each sample (Fig. 20.2). 

Now a very useful feature of the excess acidity method comes into play likely nucleophiles or bases can be tested by subtracting their log activities or concentrations from the left-hand side of equations (59) and (60), and the species reacting with SH+ is uniquely identified when linearity of the result against X is achieved.145,161 For instance, subtraction of twice the water activity is required to attain linearity in ester hydrolysis processes such as equation (42), as shown in Fig. 11 for methyl benzoate41 and ethyl benzoate.210 The water activities given in Table 3 were used. The parameters of the lines in Fig. 11, obtained by curve-fitting, are methyl benzoate, slope 0.921 + 0.010, intercept... 

Melting point alone cannot uniquely identify an OBC. For example, blends of high and low density polyolefins also exhibit an elevated melting point at equivalent density. Sample 3 in Fig. 17 (small circle) is a 70 30 physical blend of 0.86 and 0.94 g cm-3 ethylene-octene copolymers, and the melting point is similar to the OBCs. Physical blends of polymers of such disparate densities are not phase-continuous, however, and segregate into domains of the high and low density polymers. Figure 18 reveals differences in appearance of pressed plaques of the polymer samples... 

Test samples must be uniquely identified and prevented from deteriorating before the analysis is performed. Procedures to authorize ultimate disposal of samples must also be documented. 

The label should be fairly obvious and so will need to be a significant size in relation to the item of equipment. For a small item such as a thermometer, a luggage label would be suitable. For a large instrument, a larger label would be appropriate, perhaps 15 x 10 cm. In each case, some means of fixing the label in place will be necessary. The label should reference any serial numbers which uniquely identify the instrument or its separate parts. The person under whose authority the label has been issued should be identified by signature or initial, and dated. The message should be brief and clear, e.g. OUT OF SERVICE - NOT TO BE USED UNTIL FURTHER NOTICE . 

Table 10-6 presents one type of basic HAZOP form. The first column, denoted Item, is used to provide a unique identifier for each case considered. The numbering system used is a number-letter combination. Thus the designation 1 A would designate the first study node and the first guide word. The second column lists the study node considered. The third column lists the process parameter, and the fourth column lists the deviations or guide words. The next three columns are the most important results of the analysis. The first column lists the possible... 

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