Agency Korean air purification equipment customs / import clearance Agency Korean air purification equipment customs / import clearance all the experts have demonstrated the following observations: First, the GC expert appraisal opinion: This product is mainly used for water samples, soil, air, organic matter species testing, according to "Environmental surface water testing standards", "indoor air quality standards" and other national and industry standards as well as strengthen our region's environmental quality supervision and management requirements, must have reliable quality, advanced technology, low detection limit of the analytical instruments. Domestic Temperament mass range can do: 1.5-1000 amu; 2, import GC-MS maximum scan rate, and made maximum scan rate can do 10000 Da / sec; 3, imported GC-MS sensitivity: EI-wide Scan 1 pg OFN, SNR can be achieved greater than 800: 1 RMS, while the domestic GC-MS sensitivity: EI full scan to detect 1 pg OFN, SNR can do 30: 1 RMS. Therefore, the Group agreed that the introduction of the domestic market, GC-MS is not long, but in some of the key parameters and there is a wide gap between the imported products. At the same time, the product does not belong to the "Chinese ban on imports, restrictions on imports of products catalog" national ban on imports and restrictions on imported products, the proposed purchase of imported products. Second, the headspace autosampler expert appraisal opinion: 1, to be imported products for water, environment, food testing, require the use of high sensitivity instrumentation, test results are accurate, efficient, domestic instrument performance are still gaps in terms of accuracy and quality. 2, for my unit higher technical requirements for equipment, domestic products can not meet the technical requirements. Such as: imported automatic headspace sampler using pressure injection technology can balance the conventional static headspace which guarantees a narrow peak shape, improve the detection sensitivity, reproducibility and accuracy, while the domestic ethanol Determination Headspace simply can not do, I will not be able to meet the requests for accuracy. 3. The product does not belong to the "China Import & catalog" banned or restricted products. Current domestic automatic headspace sampler Although technically made progress than before, while the instrument's accuracy, stability, and other aspects of the detection limit and there is a gap of imported equipment, domestic products can not meet work requirements. Third, purge and trap concentrator expert opinion argument: According "Surface Water Quality Standard test methods" organics testing standards in the use of gas chromatography mass spectrometry to detect drinking water systems often requires the use of surface water samples were concentrated into the purge and trap sample method for the analysis of halogenated hydrocarbons and other volatile organic compounds in water. Automatic purge and trap system is concentrated injection gas chromatography - mass spectrometry injections supporting device into the kind of stability and reproducibility of the data determined by gas chromatography analysis of the stability and reproducibility of test results in order to guarantee accurate sex, reproducibility, and ease of operation. Need to reach their targets: super performance capture, have advanced mass flow controllers to ensure the accuracy of the transmission gas pipeline to ensure that the minimum requirements for the use of inert residues. Learned through market research, purge and trap device current domestic production, not only in the autosampler design deficiencies, and there is no precise flow control system. In order to better serve the masses to provide security in the environment of surface water is more accurate, more scientific basis. Proposed purchase of imported products. Fourth, portable turbidity expert appraisal opinion: According to the actual situation of the procurement unit, Resolution: Accuracy: reading, attention: the calibration mode: choose two, three or four-point calibration, measurement methods: nephelometry assay, in line with ISO7027, and the import of portable turbidity measuring turbidity, suspended solids can be detected simultaneously, with two sets of light source and silicon photo detector. The technical specifications of these domestic products can not be achieved at the same time, the product does not belong to the state to restrict imports of products, it is recommended to buy imported portable turbidity meter. Five, emergency detection boxes expert opinion argument: according to actual usage procurement unit, the device is able to complete the requirements under various field conditions of the field testing, the instrument needs to include: dual-chamber incubator, incubator 12-volt rechargeable battery, hand pressure-vacuum filtration pump, related equipment, carrying case, and all items related auxiliary; supplies and accessories are placed in a box provided; dual-chamber incubator: a two independently temperature controlled chamber and the temperature and time controller can be carried out simultaneously cultured fecal coliform and total coliform, support for external AC power supply or by a 12-volt rechargeable battery; manual pump - can be carried out on-site rapid vacuum filtration of water samples, complete microbial sample collection; arsenic analyzer - based on arsenic principle plaque assay, detection can be completed within 20 minutes, with a tail gas absorber without operator in a fume hood; turbidity meter - operator requirements, with a 4-point calibration function. Technical indicators than domestic products can not be achieved at the same time, the product does not belong to the state to restrict imports of products, it is recommended to buy imported emergency detection box. Six, Portable Dissolved Oxygen Meter expert appraisal opinion: expert opinion argument, based on the actual usage of the procurement unit: Requires that the device supports automatic salinity and barometric pressure compensation, dissolved oxygen concentration and saturation support multi-mode calibration domestic products can not meet operational needs . Recommend purchasing imported products. Seven, inductively coupled plasma mass spectrometer is determined that the device uses mainly for water samples and food samples of all the elements in the periodic table, and according to "Surface Water Environmental Quality Standard", "groundwater environmental quality standards," which Measurement of antimony, barium, beryllium, boron, molybdenum, cobalt, nickel, vanadium, thallium, titanium and other elements need to purchase. Currently just launched commercial products appeared, its technical performance immature, no mature application cases. The detection limit of the resolution is only low resolution, can not be online adjustable. Can not meet the operational needs of the purchaser. Compared with similar products in foreign countries, domestic equipment; resolution online adjustable, can be set up in a single analysis of the different elements of different resolutions. The use of units to meet environmental quality and safety testing requirements. The product does not belong to the state to restrict imports of products, it is recommended to buy imported products. Agency Korean air purification equipment customs / import clearance Agency Korean air purification equipment customs / import clearance on the Shanghai Hai Bang import declaration Ltd. Contact: Qian Jing Tel: 13816625649 (Customs scene import declaration operator) Business QQ: 2505540456 finite Shanghai Hai Bang import declaration Company: Shanghai Branch of import declaration, import declaration Ningbo Branch, Qingdao Branch import declaration, import declaration Shenzhen Branch, Dongguan import declaration Branch, Guangzhou Branch, and other import declaration. Shanghai - Ningbo - Suzhou - Shenzhen - Dongguan - Guangzhou - Tianjin - Qingdao - Xiamen - Chengdu - China's top ten service outlets. 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