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The sulfur analyzer ASV-2 is designed to measure the mass fraction of sulfur in gasoline (unleaded), diesel fuel, oil, kerosene, oil residues, lubricating oil bases, hydraulic oils, jet fuels, crude oil and other distillate oil products. The ASV-2 analyzer allows to perform the functions of determining sulfur both in the vacuum mode of the measuring chamber and in the helium purge mode. For this purpose the device is equipped with a set of accessories for connection of the analyzer to the helium post.

Designed for laboratory production of nitrogen of the highest purity that are used to power analytical instruments (chromatographs, express analyzers of hydrogen content in metals, organic carbon concentration meters, sample evaporators, etc.), boxes with an inert atmosphere.

High-pressure syringe pump (NSHVD-1) with a continuous highly stable fluid flow in a wide flow range of 0.01-10ml/min. with the functions of introducing a correction factor after calibration, setting the volume or pumping time, displaying the amount of pumped, temporary suspension of pumping with automatic resumption, the ability to adjust the flow and volume of the pumped liquid during operation without stops, automatic shut-off of the pump when the set maximum pressure is exceeded, remote control, compensation for changes in the mass flow rate of the liquid pumped by the pump when its temperature changes. TECHNICAL CHARACTERISTICS Flow range, ml/min 0.01 - 10 Dosing error, % 0.2 The discreteness of the task, % 0.01 Maximum working pressure, 12 bar Lifting height of the suction fluid, m2 Accuracy of pressure measurement, % 0.2 The maximum liquid temperature is 60 °C Modbus RTU communication interface Power supply AC 220 V, 50 Hz Dimensions: W x D x H, mm 140 x 335 x 270 Materials in contact with the pumped liquid glass, fluoroplast, stainless steel 316 L

The main difference between this set-top box and the universal set-top box of the NPVO and ZDO is that a prism is used as a working element of the MNPVO, which allows to obtain several reflections from the area of contact with the sample under study, which leads to an improvement in the quality of the spectrum and an increase in the sensitivity of the method (absorption bands become more pronounced). The registration of specular and diffuse reflection spectra (ZDO) is not provided on this set-top box. The MNPVO prefix is effective in registering the absorption spectra of samples whose dimensions (number) are sufficient to ensure contact with the entire area of the working face of the prism: * liquids of any degree of viscosity (solutions, suspensions, oils, etc.); * solid elastic samples (polymer fragments of sufficiently large size, rubbers, plastics, etc.); * powdered samples in quantities sufficient to be applied to the entire surface and samples in the form of thin tapes; The universal clamp is equipped with a precision lever mechanism for quickly lowering the tip and a micrometer screw that allows you to pre–set the optimal degree of pressure - this ensures quick sample change and repeatability of the results during measurements. For convenience when working with liquid and paste-like samples, it is possible to rotate the clamping console by 180o. Note: the MNPVO prefix does not exclude the possibility of registering the spectra of samples whose dimensions are smaller than the area of the working face of the prism (the presence of a visual inspection system of the surface under study increases convenience when working with small-sized objects), but the overall effectiveness of the method is significantly lower than when using the universal NPVO and ZDO prefix. Transmission in the operating range of the spectrum, % of the input signal of at least 25 · The recommended number of scans when registering spectra is 25 · Spectrum registration time at 25 scans (resolution 4 cm-1), 30 seconds · The depth of penetration of radiation into the sample, microns 5 – 15 · Minimum area of a solid sample, mm2 1 · Minimum volume of the test liquid, ml 0.3 · The permissible pH range of the analyzed objects is from 5 to 9 · Crystal substrate material ZnSe CVD, Ge · Diameter of the focus spot, mm 3 · Number of reflections 3 · The size of the working face of the prism, mm 21 X 6 · Magnification of the 4X micro lens · Total magnification of the visual channel 75X · Field of view of the optical system, mm 2 X 2.5 · Digital video camera resolution 640 X 480 · Overall dimensions, mm 145×125×240 · Weight, kg 2

Desiccator 2-210 mm Primelab is designed to isolate the contents from the external environment and protect from moisture due to the missing tap. Protects the contents from direct exposure to ultraviolet rays due to the fact that the desiccator is made of dark glass. Main advantages: • Robust and reliable design; • Ease of use; • Precise regulation of storage conditions. Dimensions: desiccator diameter is 210 mm with a height of 275 mm

To achieve the maximum sensitivity during measurements, a special prefix is used to the FT-801 Fourier spectrometer, which is an optical unit with a built-in highly sensitive MST detector cooled with liquid nitrogen. The set-top box is installed in the cuvette compartment of the spectrometer and connected to the corresponding external electrical port, the detector is turned on programmatically. In this case, the sensitivity of the method increases many times (up to 20) – depending on the type of standard uncooled detector in the spectrometer). The speed of recording spectra is also increasing. The operating time after filling the cryostat (200 ml capacity) with liquid nitrogen is at least 6 hours. Increasing the sensitivity of the spectrometer using a prefix with an MST detector may be required for many applications: in fiber spectroscopy, when recording emission spectra of low-power emitters, in trace gas analysis with high spectral resolution, when determining the presence of impurities in samples in ultra-low concentrations, when using multi-pass gas cuvettes, etc. In the picture: on the left in the cuvette compartment there is a capler with fiber from Art photonics GmbH, Berlin, Germany, on the right there is a prefix with an MST detector. Technical specifications The recommended number of scans when registering spectra is 16 Spectrum registration time at 50 scans (resolution 4 cm-1), sec 20 Cryostat capacity, 200 ml Working time after filling the cryostat, 6 hours Overall dimensions, mm 225×175×75 Weight, kg 1.45

Ampoules with certified solutions (AS) contain solutions of a number of substances with a certified concentration. AS are designed for independent preparation by the consumer of certified combined-cycle gas mixtures while monitoring the quality of measurement results and the stability of calibration data. The use of AS for this purpose is prescribed in the methods of analysis FR.1.31.2014.17787, FR.1.31.2014.17955, FR.1.31.2015.20512, FR.1.31.2015.21296, FR.1.31.2016.23707, FR..1.31.2016.23997 and FR.1.31.2016.239967 for FGH chromatographs.

It is used for recording transmission spectra of medium–sized and arbitrary-shaped solid samples - polymer films of various thicknesses, optical parts, semiconductor wafers, large crystals, etc. • Thanks to quick-release nuts, it provides convenient fastening of samples

Designed for the study of various types of solid samples, including optical and semiconductor materials, precious stones and other objects of arbitrary shape • The sample is located on the subject plane of the investigated surface downwards, the angle of incidence of the central beam on the sample is 15 ° • Allows you to examine samples of small sizes (the diameter of the test area is from 1 mm) • The set-top box is equipped with a set of replaceable diaphragm holders for samples of different sizes • When using a mini-press, it allows you to examine samples in the form of a thin layer rolled out on a mirror plate made of alloy steel (radiation passes through the substance layer twice, reflecting from the mirror surface) • Not used: for the study of bulk and liquid substances

The characteristics of the device are similar to the GVCH-12M1 model. The difference is the generator capacity of 16 liters /hour. Technical specifications Purity of hydrogen in terms of dry gas is about 99.9999% The concentration of water vapor at 20 ° C and 1 atm is not more than 5 ppm In the output pressure stabilization mode The range of the specified output pressure of hydrogen is from 1.5 to 6.1 ati Stability of the output pressure of hydrogen is not worse than ± 0.02 ati Maximum hydrogen capacity reduced to normal conditions is 16 l/h The time of setting the operating mode, with the output turned off is no more than 30 min In the performance stabilization mode: The range of the specified hydrogen performance is from 0 to 16 l/h Maximum developed pressure in performance mode is 5.0 ati Volume of distilled water to be poured is 1.0 l Distilled water consumption is no more than 0.025 l/hour, Water consumption is 1.6 g/l of hydrogen The average life of a replaceable deionization filter cartridge (at maximum performance and single-shift operation) is at least 1 year Average power consumption: in stationary mode is no more than 200 VA maximum (at startup) is no more than 250 VA Overall dimensions of the generator, (width x depth x height) are not more than 230x470x450 mm The mass of the generator is not more than 16 kg Operating conditions: ambient temperature, °C, from +10 to +35 powered by single-phase AC voltage, V, 220 (+10 -15)% and frequency, Hz, 50 ± 1 The generator for electrical safety meets the requirements of Class 1, type H according to GOST 12.2.025-76

The characteristics of the device are similar to the GCHA-18 model; the difference is that the oil–free compressor built into the GCHA-18-K generator provides complete autonomy of the device. The warranty for the device is 18 months, for the built-in compressor-12 months from the date of sale.

The characteristics of the device are similar to the GVCH-12A model. The difference is the generator capacity of 16 liters /hour. Technical specifications Purity of hydrogen in terms of dry gas is about 99.9999% Concentration of water vapor at 20OC and 1atm is not more than 5 ppm Total hydrogen capacity, reduced to normal conditions is not less than 16 l/h The range of the specified output pressure of hydrogen is from 3.0 to 6.1 ati Stability of the output pressure of hydrogen is not worse than ± 0.02 ati The time of setting the operating mode, with the output turned off is no more than 30 min Volume of distilled water to be poured is 1.0 l Distilled water consumption is no more than 0.03 l/hour Water consumption is 1.6 g/l of hydrogen The average life of the replaceable cartridge of the deionization filter (at maximum performance and single-shift operation) is not less than 1 year Average power consumption: in stationary mode is no more than 220 VA maximum (at startup) is no more than 250 VA Overall dimensions of the generator, (width x depth x height) are not more than 230x470x450 mm The mass of the generator is not more than 17 kg Operating conditions: ambient temperature is from +10 to +35 °C powered by single-phase AC voltage, V, 220 (+10 -15)% and frequency, Hz, 50 +1 The generator for electrical safety meets the requirements of Class 1, type H according to GOST 12.2.025-76