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An analogue of GCHA-21, but equipped with a built-in system of catalytic purification of the resulting nitrogen from hydrocarbons. GCHA-21D nitrogen generators are designed to produce nitrogen of the highest purity in laboratory conditions. The warranty period of operation of the generator is 18 months from the date of sale by the manufacturer. Technical specifications The grade of nitrogen produced according to GOST 9293-74 is high purity, grade I The volume fraction of nitrogen is not less than, % vol. (including impurities of inert gases: argon, neon, helium) 99,999 The volume fraction of oxygen is not more than, % vol. (ppm) 0.0005 (5 ppm) The volume fraction of water vapor is not more than, % vol. (ppm) 0.0007 (7 ppm) The 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 concentration of methane in the supply air not more than 5 ppm)* 0.00001 (0.1 ppm) Maximum nitrogen capacity is not less than 21 liters/hour (350 ml/min) Nominal output pressure of nitrogen 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 7 ati Minimum inlet air pressure is 5 ati Compressed air consumption, at nominal inlet pressure is no more than 300 l/h (5 l/min) Power consumption is not more that 110 VA Overall dimensions, (width x depth x height) are not more than, mm 230x425x510 Weight, not more than, kg 25 Working conditions: Ambient temperature, °C from +10 to +35 Electric power supply from a single-phase AC network with a voltage of 220 ± 10% and a frequency of 50 ± 1 Hz 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

Combined work surface: main countertop - KG (porcelain stoneware), 650 mm deep / auxiliary countertop made of TRESPA material with a depth of 150 mm Length, mm: 1200 Depth, mm: 800 Height, mm: 900 BASIC EQUIPMENT The base is a collapsible frame made of rectangular steel profile, painted with powder paint (RAL 7035) with the texture of shagreen leather Hidden fasteners Two easily removable rear screens (RAL 7035) and one non-removable (RAL 5023) Rear side boxes

Laboratory work desk Working surface: STEEL (single stainless steel module with anti-spill side) Length, mm: 1500 Depth, mm: 650 Height, mm: 750 BASIC EQUIPMENT The base is a collapsible frame made of rectangular steel profile, painted with powder paint (RAL 7035) with the texture of shagreen leather Hidden fasteners Two easily removable rear screens (RAL 7035) and one non-removable (RAL 5023) Adjustable supports (0-40 mm)

DNA marker Step50 plus DNA marker Sky-High DNA marker Step 100 DNA marker Step 100 Long

Basic properties: Wide frequency range; Sufficiently large output power; High level of suppression of side harmonics of the input signal; Low value of phase noise; Relatively simple technical solutions: - synchronization and frequency stabilization, - stabilization and adjustment of the output power level, - implementation of amplitude and frequency modulation modes; Do not require external bias diodes. Operating conditions: Operating temperature range from minus 10 to 50 ° C; The relative humidity of the air is up to 98% at a temperature of 25 ° C. Technical characteristics Input/output frequency range, GHz 12,93-18,75 / 25,86-37,5 Losses (max.), dB 13 Input power level, dBm 15-21 Unevenness of output power (Rvh. = 20 dBm), dB ± 1.5 The level of parasitic harmonics of the input signal at the output (min.), dBn 20 Output VSWR (max.) 2.0 Connector type: • Input Coax. 3.5/1.5 mm (socket) • Output Waveguide 7.2x3.4 mm Overall dimensions, mm 29x24x24 Weight, g 60

The LOIP LT-424a modification device consists of an immersion thermostat-circulator LOIP LT-400 and a working bath with a flat removable lid. Technical specifications: Temperature range: without external cooling, °C Current+10 ... +200 with tap water cooling °C Tvods+5 ...+200 Accuracy of temperature maintenance, °C ± 0.01 The error of setting the set temperature, no more than, ° C ± 0.02 Heater power, W 2200 Pump: max. flow rate, l/min 6...12 pressure, 0.4 bar Bath volume, l 24 The working fluid is water, silicone oil. Open part of the bath / depth, mm 360x296/200 Overall dimensions, mm 532x335x400 Weight, kg 15.8

It is used in determining the brittleness temperature of polyvinyl chloride plastic by express method in accordance with the State Standard 5960.

The generator is capable of operating both independently and as part of automated measuring systems with USB and IEEE-488 (CPC) interfaces. Technical specifications Frequency range (RF output) from 9 kHz to 6 GHz Frequency range (LF outputs) from 0.001 Hz to 30 MHz Frequency tuning discreteness (RF output) 1 Hz Frequency tuning discreteness (LF outputs) 0.001 Hz The main error of the frequency setting is ± 3x10-7 Hz The range of setting the output signal power level at the main RF output is from minus 120 to 13 dBm The range of setting the signal amplitude at a load of 50 ohms (LF outputs) from 0.01 to 5 V The basic error of setting the reference power level (RF output) ± (0.5 – 1.0) dB The basic error of setting the amplitude of sinusoidal signals (LF outputs) ± (3 – 15)% Instability of the signal power level for any 15-minute time interval (RF output) no more than 0.1 dB Metrological characteristics of the generator in the FM operation mode: - frequency range of the modulating signal from 1 to 100 kHz - frequency deviation setting range (taking into account the carrier frequency value) from 12.5 to 4000 kHz - the basic error of setting the frequency deviation ± (10 – 20)% Metrological characteristics of the generator in AM operation mode: - frequency range of the modulating signal from 0.05 to 5.0 kHz - the range of setting the amplitude modulation coefficient from 1 to 100 % - the basic error of setting the amplitude modulation coefficient (when operating from an internal signal source) ± (0.15 M + 0.2)% Metrological characteristics of the generator in the IM operation mode: - the duration range of modulating pulses from 100 ns to 20 s - the range of the modulating pulse repetition period from 140 ns to 30 s - the difference in the duration of the output RF pulses from the duration of the modulating pulses ± 100 ns Operating temperature range from minus 10 to 40 °C AC power supply 220 V, 50 Hz Power consumption, not more than 100 VA Overall dimensions, mm 498x136x487 Weight, not more than 15 kg

DPSS lasers of the KLM-465/x series are optimal sources of coherent radiation for the construction of control and automation systems, alignment and marking devices, for scientific and medical purposes. Technical specifications Radiation output power: up to 15 W Radiation wavelength: 465 nm Output beam diameter: 1.5mm Divergence of the radiation beam: 1.3 mrad Instability of radiation power: 5% Type of modulation: TTL or analog Time to enter the mode: 15min Spectral line width: 0.1nm

Capacity, m3/h 70 Bactericidal efficiency, % 95 Total power of UV radiation of bactericidal lamps, W, not less 11 Service life of UV lamps, hours 9000 Power consumption, W, 45±5 Adjusted sound power level, no more than 40 dBA Germicidal UV light lamps of the LUV35/2G11 type, with a power of 35 W 1 pc Dimensions (H*W*D), mm 406*291*211mm (with stand); 406x291x153 mm (without stand) Weight, kg, no more than 3.6 Warranty, years 2 Approximate dimensions of the product with packaging Net weight of the product, kg 3.6 Gross weight of the product, kg 4.25 Volume of packaging, m3 0.033 Length of the package, m 0,47 Width of the package, m 0,35 Height of the package, m 0,20

Technical specifications: Method of ionization Plasma pulsed glow discharge Discharge gas Argon, consumption less than 1 l/hour Time-of-flight Mass Analyzer with mesh-free ion mirror Resolution 4000 The number of simultaneously defined components is unlimited Mass range 1-1000 m/z Detection limits 1-100 ppb Layer-by-layer resolution Up to 5 nm Depth of analysis Up to 30 microns The time for one analysis of a solid sample is 30 minutes (with the option of a revolver system – 3-5 minutes) Vacuum system 1 Booster pump and 2 TMN (240 l/sec) Overall dimensions 1450×780×1550 mm

The test tubes contain a buffer solution of sodium citrate, which is an anticoagulant. The ratio of citrate to the amount of blood taken is 1:9. Material for research............... citrate plasma, blood Scope of application............................ coagulation study Centrifugation................................ 2000 - 2500 g - 10-15 minutes