[China Instrument Network Instrument R&D] Recently, the Zhejiang Provincial Institute of Metrology “Biomedicine Micro Flowmeter Standard Device†scientific research project won the third prize of the 2016 Zhejiang Science and Technology Progress Award. It is the first plunger liquid for medical infusion instruments in Zhejiang Province. Micro flow calibration device development project.
In recent decades, many researchers at home and abroad have carried out research on micro flowmeters and have achieved extensive results. However, the current domestic micro-flow standard devices are rarely used for the calibration and calibration of local measurement institutes. The plunger-type liquid micro flow calibration device developed by the Zhejiang Institute of Metrology can calibrate the float flowmeter, Coriolis and thermal mass flowmeters and infusion pump testers with calibration flow ranges from 0.1mL/h to 1000mL/h.
The project uses a "double cup double weigh" and "double cup inside and outside" frame and a constant temperature water source system to electrically drive the plunger to provide a flow source and a measurement standard to achieve dynamic verification and calibration. The device verification efficiency has reached or exceeded the international level The overall technology of the project is leading domestically. The project-related technology obtained 4 national invention patents and 8 academic papers.
Zhejiang Provincial Metrology Institute has applied the results of the project to provide professional measurement and calibration services, which effectively solves the problem of traceability of the value of nearly 100 infusion pump testers in hospitals across the province, and provides a measurement basis for biomedical, high-tech, environmental protection and other fields. Standards and technical support have significant social benefits.
(Original Title: Provincial Scientific Research Institute won the third prize for provincial science and technology progress)
Carboxy Methyl Cellulose
Natural cellulose is the most widely distributed and abundant polysaccharide in nature. At present, the modification technology of cellulose mainly focuses on etherification and esterification. Carboxymethylation is a kind of etherification technology. Carboxymethyl cellulose (CMC) is obtained by carboxymethylation of cellulose. Its aqueous solution has the functions of thickening, film-forming, adhesion, water conservation, colloid protection, emulsification and suspension, and is widely used in petroleum, food, medicine, textile and papermaking industries, and is one of the most important cellulose ethers.
It's widely used in oil industry drilling mud treatment agent, synthetic Detergent, organic builder, textile printing and dyeing sizing agent, daily-use chemical products water-soluble colloidal tackifier, tackifier and emulsifier for pharmaceutical industry, and food industry Thickener, adhesive for ceramic industry, industrial paste, sizing agent for paper industry, etc. Used as flocculant in Water Treatment, mainly used for wastewater sludge treatment, can increase the solid content of filter cake.
Carboxy Methyl Cellulose,CMC Thickener,CMC Sodium
HENAN JINHE INDUSTRY CO.,LTD , https://www.speciatyelement.com