Plants within the semiconductor and circuit manufacturing industry deals manufacture semiconductors, computers, printed circuit boards, and other very small electronic components, including transistors, capacitors, inductors, resistors, diodes, insulators and conductors. Semiconductor manufacturing process emissions and pollution control challenges include VOC abatement; acid gas scrubbing; fluid handling; filtration; and laboratory fume hood exhaust.
Many of the air quality analyses can be performed with standard laboratory consumables, such as traditional filter papers. However, some analyses require materials with specific features, for example filters with low metal levels.
Common air monitoring applications include:
Air quality testing of ambient environment and emissions. Includes particulate monitoring methods such as PM2.5 and PM10, and chemical analysis such as heavy metals determination.
Asbestos sampling and analysis
The continuing establishment of nuclear power stations around the world pose unique environmental challenges for their operators. Ecotech provides air samplers to nuclear power plants for sampling of radionuclides.
Quantitative determination of the total mercury content in filtrates of wash-off samples from the surfaces of walls, floors, equipment, and other facilities of m anufacturing areas is an effective method for the occupational safety monitoring.
This method for the measurement of sodium and potassium in silicate rocks uses a borate fusion technique.The sample is fused with a suitable fusion agent such as boric acid (H3BO3) and lithium carbonate (Li2CO3) and the ground product is dissolved in dilute citric acid.The presence of other metals such as aluminium, calcium, iron, magnesium and silicon should not interfere with the measurement of sodium or potassium using this method.
The Cloud Point of a diesel fuel is the temperature below which wax forms giving the fuel a cloudy appearance. This parameter is an important property of the fuel since the presence of solidified waxes can clog filters and negatively impact engine performance. The traditional laboratory methods for
the measurement of Cloud Point are optical in nature, but rely on cooling the fuel for the wax formation to occur. Guided Wave’s process analyzers can measure compositional changes in the fuel that will be directly...
Microbial Contamination Results in Less than 5 minutes! Microbial growth in metalworking fluids presents a major problem. Storage tanks, recirculation lines, filters, and other equipment can become fouled through microbial proliferation and metabolic activity, which results in a myriad of problems. These problems include compromised product quality from microbially influenced corrosion (MIC), equipment and filter plugging, and health risks from bioaerosols. The best solution to these problems is early detection...
Environments with an excess of suspended particles and/or contaminating gasses in the air may be unhealthy and might even cause harmful effects, increasing the risk of developing illnesses. To address these risks, vast numbers of public installations and buildings must provide air filtration solutions to ensure a high quality of air inside the building to safeguard the health and comfort of the occupants.
IPC offers a full line of precision cleaners that provide consistent results with every use and leave surfaces completely clean. An economical 1-2% concentration in water is effective in most cleaning applications. Typical uses include removing protein, starch, grease, fat, gum, oil and baked on soil from processing equipment, lines, and filter membranes.
Several different techniques can be used for sample digestion and extraction of sodium and/or potassium: oven ashing, perchloric acid ashing, extraction by boiling and acidification with HNO3 as well as extraction by homogenisation in 2% trichloroacetic acid (TCA).
DIEMME Filtration has the correct solutions for all problems of slurry - sludge dewatering, because every DIEMME FILTRATION filter press, is projected in connection with the chemical physical characteristics of the sludge.
A number of methods have been reported for the measurement of calcium in biological materials by flame photometry or titration. This method employs trichloroacetic acid (TCA) to precipitate the proteins and has been found to be adequate to extract all of the calcium from tissue samples. Sodium, potassium and phosphate caused no significant interference and calcium concentration in the range of 0 to 2 µg/ml is readily determined.
Commercial cereals vary considerably in composition, both in their formulation and the ingredients added to enrich these products. Sodium is the predominant cation in breakfast cereals, at levels reaching 8mg/g. Potassium and calcium also vary, particularly in wheat-based products and those enriched with milk products or calcium salts.
Metalmembranes offers a unique laboratory filtration solution for a variety of filtration applications for instance bacterial concentration before analysis, sample preparation before (HPLC) analysis etc. The membranes have a pore sizes of 150 nm (Aluminum) and 15 nm (Titanium).