Compact Dry X-SA (Staphylococcus Aureus) Staphylococcus aureus is a common human microflora, it can naturally be found on the skin, nose, and hair. Due to this, it is commonly used as index of food handlers’ personal hygiene. Thus, high staphylococcal population in food system indicates poor hygiene and sanitation. They are normally harmless but at…
Compact Dry VP (Vibrio Parahaemolyticus) CompactDry VP is a simplified medium to determine Vibrio parahaemolyticus. Characteristic Medium contains chromogenic enzyme substrates, then Vibrio parahaemolyticus forms blue/blue green colonies. Other Vibrio form white or red purple colonies. Incubation Incubate 19±1 hours at 35±1℃ Result Interpretation Vibrio parahaemolyticus grow to develop blue/blue green colonies as the medium…
Compact Dry LS (Listeria species) Compact Dry LS is a simplified medium to determine Listeria species by the combination of selective agents and chromogenic substrates. Incubation Manufacturer’s recommendation: 35±1℃ for 24±2 hours Result Interpretation Count light blue/blue colonies for Listeria species. Procedures
Compact Dry ETB (Enterobacteriaceae) Compact Dry ETB is a simplified medium to determine number of Enterobacteriacae by the combination of selective agents and pH indicator. Approved AOAC Certificate Number: 012001 MicroVal Certificate of Compliance Number: 2008LR02 (MV0806-002LR) NordVal International Certificate Number: 034 Characteristics Colonies grown on ETB plate are distinguished by red/purple color for Enterobacteriaceae.…
General InformationProduct Photos Windows can be installed in Parr stirred reactors and pressure vessels for visual observations, light transmission and other purposes. They usually are installed in pairs so that light can be introduced through one window while the other is used for viewing. Our standard material for these windows is fused silica. Sapphire is…
Sample Collection Vessels A sample collection vessel can be added to most reactor systems. Designed to efficiently and safely allow for the withdrawal of liquid or vapor samples at elevated temperatures and pressures, this quick close, O-ring seal vessel has a volume of 5 mL or 10 mL and is designed for operating pressures to…
High Pressure Gas BurettesLiquid Charging pipetteCatalyst Addition Devices High Pressure Gas Burettes Parr offers a series of high pressure burettes intended to introduce gas (commonly hydrogen) to a reactor at a constant pressure. The burettes consist of a high pressure reservoir equipped with an inlet valve, a pressure gage and a relief valve. A constant…
General InformationSpecifications Parr offers two styles of condensers for attachment to the head of a stirred reactor or pressure vessel. These can be made in various sizes to match the size of the reactor The reflux condenser consists of a length of tubing connected directly to the head of a vessel and equipped with a…
Static Catalyst BasketDynamic Catalyst Basket The Static Design In the static design the mesh basket holding the catalyst remains stationary while impellers on the stirring shaft and baffles outside of the basket direct the flow of reactants over the surface of the contained catalyst. A unique gas entrainment impeller provides a uniform flow of both…
Standard StirrerGas Entrainment ImpellersBaffles All stirrer options may not be appropriate or available for each reactor size. Additional internal fittings may be required to adapt some stirrer styles to existing reactors in the field. Please contact us for assistance in selecting a stirrer suitable for the intended operating volume and viscosity. The stirrer option shown…
This system incorporates three tubular reactors that can be configured as required to operate in a strictly parallel fashion or in a cascade arrangement where the products from one reactor are immediately directed to a second reactor. This type of system can support reaction schemes including but not limited to the Fisher- Tropsch process,…
General InformationSchematic Example A supercritical fluid is any substance at a temperature and pressure above its critical point. Such fluids can diffuse through solids like a gas and dissolve materials like a liquid. Near the critical point, small changes in pressure or temperature result in large changes in density, allowing many properties of a supercritical…
