Sample description

This paper deals with the control of weld depth penetration for cylinders in gold-nickel alloy and tantalum. After introducing the experimental set-up and the samples description, the study and the optimization of the testing are presented for single-sided measurements either in a pulse-echo configuration or when the pump and the probe laser beams are shifted (influence of a thermal phenomenon), and for different kind of laser impact (a line or a circular spot). First, the ultrasonic system is used to detect and to size a flat bottom hole in an aluminium plate. Indeed, when the width of the hole is reduced, its shape is nearly similar to the one of a slot. Then, the optimization is accomplished for... 

Following Is a sample description of roles and responsibilities circulated with regard to a division s PSM pilot test. 

Sample Description Peak Retention Time, mi i % of Total... 

Species/ variety Sample description Theo- bromine Caffeine Theo- phylline Theo- bromine/ caffeine ratio Ref. 

Sample Place of sampling Description Proteinaceous additives... 

Sample description Shear strength using NCS Crystic 600 (MPa) Shear strengh using NCS Crystic 392 (MPa)... 

Sample Description and location d/l aspartic acid Predicted age (yr)... 

Sample description Reported PER values Corrected PER values Reference... 

As an example of the application of gas chromatography-mass spectrometry, Fig. 1.7 shows a reconstructed chromatograph obtained for an industrial sludge. The Finnigan MAT 1020 instrument was used in this work. Of the 27 compounds searched for, 15 were found. These data were automatically quantified. This portion of the report contains the date and time at which the run was made, the sample description, who submitted the sample and the analyst, followed by the names of the compounds. If no match for a library entry was found, the component was listed as not found . Also shown is the method of quantification and the area of the peak (height could also have been chosen). 

Data and results consist of sample descriptions, numerical measurements made on samples and standards (sometimes in the form of tables, chart recordings, and computer printouts), and mathematical formulas and calculations. Results consist of the final answer to an analysis, i.e., the result that is sought by doing the analysis. 

Data from Refs. [13,14] sampling and sample description from Ref. [13] LOQ, if below LOD, the actual LOD is given (e.g. for calculation purposes) < is below LOD < is between LOD and LOQ. LOD is defined as 3 X SD in noise LOQ is defined as 10 X SD in noise. Noise level varies from sample to sample, and consequently LODs differ. 

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