Water testing validation

Established in 1894, AOAC International is an independent association of scientists and organizations in the public and private sectors devoted to promoting methods validation and quality measurements in the analytical sciences. AOAC has a mission to ensure the development, testing, validation, and publication of reliable chemical and biological methods of analysis for foods, drugs, feed-stuffs, fertilizers, pesticides, water, forensic materials and other substances affecting public health and safety and the environment. 

Keywords Accreditation Food and water microbiology Validation Type of tests... 

The STAR fuel processor represents a culmination of three years of intensive R D and design efforts. Prior to their use in the integrated fuel processor, all components were tested in the MPR. Figure 4 compares the expected and obtained performance of the water-gas-shift catalyst in the MPR. Similarly, the MPR testing validates the desulfurizer performance data collected on the bench scale reactor (Table 2). The sulfur capacity was the same in both the MPR and the bench scale reactor. 

Some important experiments have highlighted the role of voids in laminates under cyclic loading when in water. To validate the design of GRP hulls for durability and performance in the tropical waters of the Persian Gulf, the Procurement Executive of the UK Ministry of Defence commissioned creep and fatigue tests at loads equivalent to one-eighth of the static... 

In considering the corrosion of magnesium and its alloys it is important to examine the methods available for assessing corrosion tendencies and particularly those known as accelerated tests. Tests carried out by immersion in salt water or by spraying specimens regularly with sea-water are worthless as a means of determining the resistance of magnesium alloys under any other than the particular test conditions. Extrapolation to less corrosive conditions is not valid and even the assessment of the value of protective measures by such means is hardly possible. The reason is to be found in the fact that corrosion behaviour is directly related to the formation of insoluble... 

R is the gas constant Dq and activation energy Eu are constants derived from an Arrhenius plot for diffusion coefficients applying at different temperatures, and solubility coefficient was obtained from a separate permeation test at TiK. Suitable testing using a specially constmcted permeation cell water-cooled at one end provided good validation data. 

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