Sample testing

A first comprehensive round robin test described in 4.1 which is open to all interested parties will be followed periodically by round robin tests in a reduced extent to ensure the further harmonisation of measurement procedures. The check of measurering equipments and procedures is an inalienable requirement for the further steps for providing the users with constant film quality. Together with sample tests performed by BAM as indicated in section 4.2 and and the production control by the manufacturer it will be possible to survey the film systems whether they meet the requirements of one of the film classes of EN 584-1. 

Surveillance of the quality of film systems by sample test in accordance with EN 584-1... 

Products of the described type have very high quality requirements as the consumers are typically families with children or restaurants catering to same, where even the smallest bones are unacceptable. Previously, sample tests were conducted on selected blocks. The blocks were thawed and sieved. This was a very slow way of inspection where the production line had to wait for the raw material. 

Add 4 4 g. of recrystaUised -phenylhydroxylamine to a mixture of 20 ml. of concentrated sulphuric acid and 60 g. of ice contained in a 1 litre beaker cooled in a freezing mixture. Dilute the solution with 400 ml. of water, and boil until a sample, tested with dichromate solution, gives the smell of quinone and not of nitrosobenzene or nitrobenzene (ca. 10-15 minutes). Neutralise the cold reaction mixture with sodium bicarbonate, saturate with salt, extract twice with ether, and dry the ethereal extract with anhydrous magnesium or sodium sulphate. Distil off the ether p-aminophenol, m.p. 186°, remains. The yield is 4-3 g. 

Sample test data are either manually entered into the system or captured from analytical instmments coimected to the LIMS. The system performs any necessary calculations and compares the result to the appropriate specification stored in the database. If the comparison indicates the material is in conformance, the system can automatically provide an approval. Otherwise, the LIMS can alert lab supervision to the nonconforming sample analysis. 

Methods for Chemical Analysis of Graphite Test Method for Ash in a Graphite Sample Test Method for Moisture in a Graphite Sample... 

Stress relaxation performance is usually determined in bending, where the initially imposed stress is 50 to 100% of the yield strength at the tension side of the stressed samples. Test details are presented in Reference 23. Data is presented as the percentage of the initial stress that remains as a function of time at exposure temperature. 

Sample tests in the field. These include coupons, stressed samples, electrical-resistance probes exposed to the plant corroding medium, or samples exposed to the atmosphere, to soils, or to fresh, brackish, or sahne waters. 

Size effeet on thiek seetions - may have lower duetility than sample tests. 

In principle, filter bed permeabilities can be calculated using the Carman-Kozeny equation 2.53. For slurries containing irregular particles, however, cake filtrabilities together with filter medium resistance are determined using the Leaf Test (Figure 4.13). In this technique, a sample of suspended slurry is drawn through a sample test filter leaf at a fixed pressure drop and the transient volumetric flowrate of clear filtrate collected determined. 

Gas exits the vessel at the bottom through the vessel sidewall. This arrangement minimizes entrainment of fines. Additionally, a cone strainer should be included in the exit line. This line should also have a pressure tap and sample test tap. 

PSS uses the following formulae (22,23) to calculate plate count, asymmetry, and resolution. PSS uses test conditions that conform to the ISO/EN 13885 and DIN 55672 requirements for SEC sample testing. 

Zinn-probe, /. sample, test, or assay of tin. -puder, m. powdery tin dross, -pulver, n. powdered tin, grain tin. -rafhnation, /. tin refining or refinery. 

The four queries were examined against a list of samples tested on Whelk CSP that constitutes our search domain. Search results are summarized in Table 4-3. Of the 616 3D structures in this database list, 370 fit at least one of the query (one sample may fit more than one query) and 335 are given as resolved according to chromatographic data or information reported in the field comment. Query 2 retrieved the largest number of compounds with a high percentage of resolved samples in the hit list. While the number of hits retrieved with Query 1 is lower, this query provided a similar proportion of resolved samples (93 %). 

The manufacturer requires complete solids and/or liquids data, feed size analysis, and requirements for separation. In some instances, it may be best to have a sample tested by the manufacturer in their laboratory. 

Equal suspension of particles referenced to visual appearances and physical sample testing. Empirical correlations generalized to apply to most problems. 

Description of samples tested, specific test methods used, exposure medium notes, solubility parameters, and other important details are provided. Emphasis is on providing all relevant information so the most informed conclusions and decisions can be made by the user. Over 60,000 individual entries (specific tests) are covered in the database. Classes of materials covered include thermosets, thermosetting elastomers, thermoplastics, and thermoplastic elastomers. Approximately 700 different trade name and grade combinations representing over 130 families of materials are included. Over 3300 exposure environments are represented. 

Fig. 6.5. Yield strengths from flexural tests are plotted against strain rates at the surface of the samples. Tests were performed on polymers A, B, and E test temperature 23 °C. The slope of the three lines correspond to similar activation volumes v = 2 0.1 nm3...

Response revised SPC and labelling submitted (Applicant) Sample testing... 

In order to assess the effect of the corn cob xylan on the cell viability and proliferation rate, xylan solutions at concentrations of 0.1, 0.25, 0.50, 0.75, and 1 mg/ml were placed in contact with human cervical adenocarcinoma cells (HeLa cells) for 24 and 72 h. Finally, the cell viability was determined by the MTT assay. It was observed that regardless of the xylan concentration, the samples tested did not affect the viability of HeLa cells after incubation for 24 h (Figure 13) (Unpublished data). 

FIGURE 9.16 Resilience values for chlorobutyl rubber (CIIR), butadiene rubber (BR), unfilled natural rubber (NR), filled natural rubber (SRB), and polyurethane (PU) samples tested using a Shore rebound resibometer, an Instron compression tester and a scanning probe microscope (SPM). (From Huson, M.G. and Maxweb, J.M.,... 

The sample is assembled into the permeation cell after first having had its thickness accurately measured, with the sample supported by a stainless steel porous sinter (not visible in the photographs). The test cell is heated to test temperature by suitably controlled band-heaters, test temperature being measured by a thermocouple located close to the sample. Test gases are boosted to test pressure using a gas intensifier operated by pressurized air. 

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