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It is intended for express measurements in residential and working premises of biologically hazardous levels of electrostatic fields, the sources of which are electrical installations, information display media (computer displays, televisions, slot machines), as well as finishing building materials.

The NV-1000 MD is a large table with two deep polypropylene sinks and a built—in dryer for 18 dishes. It is designed for standing work: its height is 85 cm. Dimensions when assembled (W×D×H): 1000×600×1650 mm. The table top is made of laminated chipboard. It has two built-in Stegler WJH0357F polypropylene sinks. Internal dimensions of each sink (W×L×H): 490×390×290 mm. Polypropylene is resistant to prolonged exposure to concentrated acids, alkalis and organic solvents and suits perfectly for washing laboratory dishes. The package includes a stainless steel mixer with flexible 300 mm tap connectors and a siphon. The upper part of the inclined shelves of the dryer, on which dishes are placed, is covered with a polypropylene insert to protect it against water and reagents. The 18 pins are also made of polypropylene. The side laminated panels of the table (chipboard 16 mm thick) are edged on the facade with a 2 mm PVC edge, which increases their impact resistance and mechanical strength. The legs of the table are adjustable in height within two centimeters, allowing you to place it even on a rather uneven floor. Advantages of NV-1000 MD tables A wide table with two polypropylene sinks and a dryer for 18 dishes. An inexpensive solution for laboratories that value the reliability and durability of furniture. The polypropylene is resistant to prolonged exposure to concentrated acids, alkalis and organic solvents. Application of NV-1000 MD tables Tables of the NV series are used in laboratories of the widest profile: at food and light industry enterprises, in scientific and educational workshops, in chemistry classrooms, quality control centers, medical organizations and many others.

Purpose: measurement of the product of the air kerma by length, followed by the calculation of the CTDI tomographic dose index (using the CTDI phantom) for the following calculation of the effective dose received by the patient; monitoring the stability of medical X-ray machines during their operation; calculation of the dose index of a computer tomograph (MPCT) according to GOST R IEC 61223-2-6-2001.

The generators are designed to supply analytically clean air to flame ionization detectors and gas analyzers. They are available in two versions depending on performance and output pressure. Thanks to the presence of a system of catalytic purification of air from hydrocarbons, the generator can significantly improve the accuracy and sensitivity of chromatographic analyses. Technical specifications Air capacity reduced to normal conditions is not less than 2.0 l/min Outlet air pressure is 355 ± 5% kPa (3.5 ati) Output pressure stability at constant flow rate is not worse than ± 10 kPa The stability of the output pressure when the flow rate changes from 0.3 to the maximum value is not worse than ± 10 kPa Output concentration of hydrocarbons is not more than 0.1 ppm Water vapor concentration at 20°C and 100 kPa is no more than 10 ppm Ready time after switching on is no more than 30 min Power consumption is not more than 200 VA Overall dimensions of the generator (width x depth x height) are not more than 230x425x510 mm The mass of the generator is not more than 18 kg Working conditions: ambient temperature, °C from +10 to +35 relative humidity of the ambient air, % 80 power supply from a single-phase network: AC voltage, 220 ± 10% and frequency, Hz 50 ± 1

Vascular Endothelial Growth Factor is one of the key regulators of angiogenesis. The most important role in the human body is played by a protein of the VEGF family called VEGF-A. VEGF-A is a 45 kDa glycoprotein homodimer and plays a key role in chemotaxis and angioblast differentiation, endotheliocyte (EC) proliferation, vasculogenesis, and vascular remodeling. As a result of alternative splicing or proteolytic cleavage, 4 main isoforms of VEGF-A are formed, consisting of 121, 165, 189, or 206 amino acid residues.

The composition of the PM-8 verification module Frequency comparator CHK7-1011; Universal frequency meter Ch3-89; AC voltage voltmeter VK3-78A; Universal voltmeter V7-81; AC voltage calibrator H5-5; High-frequency signal generator G4-227; High-frequency signal generator G4-229; High-frequency signal generator G4-230; Absorbed power wattmeter M3-108; Installation for measuring attenuation D1-24/1; Device for measuring attenuation stepwise D1-25; Computational modulation meter SK3-49; The meter-calibrator of the harmonic coefficient SK6-20; Spectrum analyzer SK4-"Belan 240"; VSWR panoramic meter R2-135; VSWR panoramic meter R2-137; A set of exemplary measures of the transmission coefficient H3-7; Oscilloscope S1-157/4; DC power supply B5-79/1; AC power source B2-7 (2 pcs.); Electronic switch of microwave signals; PC, printer; Basic load-bearing structures (BNC). Technical specifications Measuring ranges of electrical quantities: Constant electrical voltage from 3 MV to 1000 V Alternating electric voltage in the frequency range of 10 Hz ... 2000 MHz from 10 mV to 100 V Frequency of continuous electromagnetic oscillations from 0.001 Hz to 17.85 GHz The power of continuous electromagnetic oscillations in the frequency range of 20 MHz ... 17.85 GHz from 0.8 to 10 MW Attenuation of electromagnetic oscillations in the frequency range 0.1 MHz ... 17.85 GHz from 0 to120 dB VSWR in the frequency range 0.2 ... 17.85 GHz from 1.03 to 2 Harmonic coefficient in the frequency range of 10 Hz ... 8 GHz from 0.005 to 100 % The amplitude modulation coefficient in the carrier frequency range of 100 kHz ... 17.85 GHz from 0.1 to 100 % Frequency deviation in the carrier frequency range of 100 kHz ... 17.85 GHz from 5 Hz to 1 MHz Phase modulation index in the carrier frequency range 100 kHz ... 17.85 GHz from 1 to 100 radians Phase shift between two harmonic signals in the frequency range 0.1 MHz ... 17.85 GHz from 0 to 360o Ranges of reproduction of electrical quantities: Alternating electrical voltage in the frequency range of 10 Hz ... 2000 MHz from 3 MV to 3 V Harmonic (sinusoidal) signal at a load of 50 ohms in the frequency range of 0.001 Hz ... 30 MHz from 0.01 to 5 V Continuous electromagnetic oscillations in the frequency range of 9 kHz ... 17.85 GHz from minus 120 to 13 dBm 5 and 10 MHz reference frequency signal Attenuation of electromagnetic oscillations in the frequency range 0 ... 3 GHz from 0 to 86 dB Measurement errors of electrical quantities: Constant electrical voltage ± (0.0025 ... 16.7) % Alternating electric voltage in the frequency range 10 Hz ... 2000 MHz ± (0.2 ... 16) % Frequency of continuous electromagnetic oscillations ± (2·10-7 ... 4·10-3) Power of continuous electromagnetic oscillations in the frequency range 20 MHz ... 17.85 GHz ± (4 ... 6) % Attenuation of electromagnetic oscillations in the frequency range 0.1 MHz ... 17.85 GHz ± (0.01 ... 1.2) dB VSWR in the frequency range 0.2 ... 17.85 GHz ± (3 ... 5) K Harmonic coefficient in the frequency range 10 Hz ... 8 GHz ± (0.005 ... 6) % Amplitude modulation coefficient in the carrier frequency range 100 kHz ... 17.85 GHz ± (0.1 ... 9) % Frequency deviation in the carrier frequency range 100 kHz ... 17.85 GHz ± (0.2 ... 80) Hz Phase modulation index in the carrier frequency range 100 kHz ... 17.85 GHz ± (0.02 ... 5) radians Phase shift between two harmonic signals in the frequency range 0.1 MHz ... 17.85 GHz ± (0.01 ... 0.08) o Errors in the reproduction of electrical quantities: Alternating electrical voltage in the frequency range 10 Hz ... 2000 MHz ± (0.16 ... 10) % Harmonic (sinusoidal) signal at a load of 50 ohms in the frequency range 0.001 Hz ... 30 MHz ± (3 ... 5) %; Continuous electromagnetic oscillations in the frequency range of 9 kHz ... 17.85 GHz ± (0.5 ... 3) dB 5 and 10 MHz reference frequency signal ± (2·10-11 – 2,4·10-10) Attenuation of electromagnetic oscillations in the frequency range 0 ... 3 GHz ± (0.2 ... 1.4) dB General technical characteristics: The area occupied by the module is 6-12 m2 Weight, not more than 550 kg Power supply voltage from 198 to 242 V with a frequency of (50 ± 0.5) Hz Power consumption, no more than 3000 VA

GCHA-180 nitrogen generators are designed to produce in laboratory conditions nitrogen of the highest purity that is used to power analytical instruments, boxes with an inert atmosphere. Technical specifications The grade of nitrogen produced according to GOST 9293-74 is high purity, grade I Volume fraction of nitrogen is not less than, % by volume (including impurities of inert gases — argon, neon, helium) 99.999 Volume fraction of oxygen is not more than, % vol. 0.0005 (5 ppm) Volume fraction of water vapor is not more than, % vol. 0.0007 (7 ppm) Volume fraction of hydrogen is not more than, % vol. (ppm) 0.0002 (2 ppm) The volume fraction of the sum of carbon-containing compounds in terms of methane is not more than, % vol. (ppm)* (with a methane content in the supply air of not more than 4 ppm) 0.0003 (3 ppm) Maximum nitrogen capacity is not less than, l/h, 180 (3.0 l/min) Nominal nitrogen output pressure (with the throttle open) is 4 ati The time of setting the operating mode for single-shift operation is no more than 45 min Nominal inlet air pressure is 6 ati Maximum allowable inlet air pressure is 8 ati Minimum inlet air pressure is 5.5 ati Compressed air consumption, at nominal inlet pressure and maximum flow rate is no more than, l/h, 4200 (60 l/min) Power consumption is not more than, VA, 100 Overall dimensions, (width x depth x height) are not more than, mm, 230x580x680; Weight is not more than, kg 36 Working conditions: ambient temperature, C°, from +10 to +35 Electric power supply from single-phase AC mains voltage, V, 220± 10% and frequency, Hz, 50 ± 1 Average full service life is at least 6 years The generator for electrical safety meets the requirements of Class 1, type H according to GOST 12.2.025-76

A simple and inexpensive radiation monitoring system for radiation-hazardous facilities, such as radionuclide source storages, isotope warehouses, clinical radionuclide diagnostics and therapy departments, PET centers, metrological laboratories where work with ionizing radiation sources is carried out, etc.

Distinctive features: - Non-destructive testing of strength, plasticity and viscosity of parts and structures made of ferromagnetic steels and cast iron according to the following standards: GOST 30415-96, OST 14-1-184-65, TU-14-1016-74 - Non-destructive testing of the depth and hardness of surface-hardened layers on steel and cast iron parts; - Quality control of low-temperature tempering of cutting and measuring tools, bearing steels; - Control of uniaxial elastic stresses; - Control of the uniformity of the properties of massive parts. Technical specifications: The range of coercive force of the material of the controlled products, A/cm, is 1.0...60. The limit of the permissible basic absolute error of measurements of the coercive force (Ns) on standard samples at a normal ambient temperature of 20 ± 5°C does not exceed the values of 0.1+0.04 Ns (Ns stands for the measured value of the coercive force of the standard sample). This error probability is provided with a gap between the converter and the surface of the controlled product not exceeding 0.5 mm. Basic version: The structroscope is powered by a battery. Extended version: It is possible to work on 220V/50Hz grid. The time of setting the operating mode after power on, min: no more than 2 Time of one measurement, sec: no more than 6 Continuous operation time (without recharging), h: at least 16 Internal memory: up to 512 series of 512 measurements each with the possibility to view the results Operating temperature range: -20°C to +40°C; Overall dimensions, (length x width x thickness), mm: electronic unit: 190x140x80 converter: 135x75x100 Weight, kg: the electronic unit with a battery: 2.3 ± 0.05 the converter: 1.3± 0.05 Basic version kit: Ia5.173.023 Electronic unit: 1 pc. Ia5.125.061 Converter: 1 pc. Ia8.896.121 Control sample of coercive force (plate PN-1): 1 pc. Ia8.896.122 Control sample of coercive force (plate PN-2): 1 pc. Bag-case: 1 pc. Charger: 1 pc. Ia2.778.042 RE Operating Manual: 1 copy. Ia2.778.042 FO Form: 1 copy. Ia2.778.042 MP Verification instructions: 1 copy. Extended version: Additionally, it can be equipped with a Bluetooth® module for communication with a PC and software for receiving and processing data. It can also be equipped with a small-sized converter.

The principle of operation of the device The principle of operation of the irradiator is based on the conversion of DC electrical energy into a normalized flow of ultraviolet radiation in the optical wavelength range of 350 ... 400 nm with a maximum at a wavelength of 365 nm. Design features and advantages The irradiator is a lantern consisting of an ultraviolet diode placed behind the focusing system, connected to a DC voltage converter, which supports the optimal mode of starting and functioning of the LED. Structurally, the irradiator is made in a lightweight duralumin housing, in the front of which there is a focusing system with an ultraviolet LED. The housing is equipped with a carrying strap. There is also a power on/off button on the case. As the power source of the irradiator, a lithium-ion battery of type 18650 with a nominal voltage of 3.7 V or 3 AA batteries with a voltage of 1.5V. are used. An ultraviolet LED is used as a source of ultraviolet (UV) radiation. The use of an LED distinguishes the UFO-3-20F irradiator from similar devices using UV lamps, it provides: high reliability and durability; variable diameter of the UV radiation zone; low current consumption and long continuous operation time; instant readiness for the first and subsequent turn-on; low weight, compact; high radiation intensity; stability of the characteristics of the irradiator, both during operation and throughout its entire life; wide operating temperature range. Scope of application The UV-3-20F irradiator (lantern) is used for ultraviolet irradiation of the surface of various parts, assemblies and mechanisms during flaw detection by fluorescent methods of non-destructive testing at machine-building enterprises, chemical and petrochemical industries, railway, automobile, water and aviation transport, during the laying and operation of pipelines, in construction, agriculture. The device can be used to check the quality of welds and internal surfaces of closed tanks. The luminescent method makes it possible to ensure high brightness and contrast of the indicator pattern, and, consequently, high sensitivity, especially on parts and products with a dark surface. Technical specifications The range of radiated wavelengths, nm 350...400 Ultraviolet irradiation at a distance of 300 mm, W/m2, not less than 20000 with a diameter of the irradiated area of 100 mm not less than 2000 Power supply from a lithium-ion battery type 18650 voltage of 3.7 V, or 3 AA batteries with a voltage of 1.5V Continuous operation time without recharging the battery, h, at least 4 Maximum irradiance at the wavelength, 365 nm Dimensions (diameter x length) 40 x 150 Weight (without batteries), kg, not more than 0.2

It is designed to obtain the values of the effective radiation dose for 46 types of X-ray examinations of patients of any age