Preparation of a solution of chloramine of different concentrations. Guidelines for the use of chloramine for disinfection purposes

APPROVE
Head of the Main Sanitary and Epidemiological Directorate of the Ministry of Health of the USSR
V. E. KOVSHILO
October 21, 1975

METHODOLOGICAL INSTRUCTIONS
ON THE APPLICATION OF CHLORAMINE FOR DISINFECTIVE PURPOSES

I. General information

1. Chloramines include a number organic compounds having a common chemical formula RSO2NH2 (R - denotes a radical), in which one or both hydrogen atoms located at nitrogen are replaced by chlorine. Distinguish if the starting product is benzene, and chloramine T, if toluene is used for this.

2. Domestic chloramine used for disinfection purposes is called chloramine B, belongs to the group of monochloramines and has the formula: C6H5SO2N(Na)Cl x 3 H2O. He is sodium salt chloramide benzene sulfonic acid, has the form of a white fine crystalline powder (sometimes yellowish). Usually contains 26% active chlorine, keeping this amount of chlorine for a long time at proper storage(losses of active chlorine during the year do not exceed 0.1%).

3. Chloramine B dissolves well in water room temperature. Its solutions retain active chlorine for 15 days and can be prepared for future use. Does not damage or discolor fabrics.

4. Chloramine has a high activity against gram-negative and gram-positive microorganisms, starting from 0.2%. Since active chlorine binds with organic substances, the concentration of solutions in practical conditions increase to 0.5-1-2-3-5%. Hot solutions of chloramine (50-60 °) have a higher disinfecting effect.

5. The bactericidal and virucidal properties of chloramine solutions are increased by adding ammonium compounds (ammonia, ammonium sulphate or chloride) to them, acting as activators. Activated chloramine solutions quickly lose active chlorine, so they are used immediately after preparation.

6. Store chloramine in a dark glass container with a well-fitting stopper or, even better, with a ground stopper, in a wooden container or in a container made of tin, coated with asphalt varnish from the inside, and also in polyethylene bags. When storing chloramine, do not allow direct exposure to light and moisture.

7. Chloramine and solutions prepared from it are checked from time to time for the content of active chlorine in them; this establishes the loss of active chlorine and the correct preparation and storage of solutions.

II. Preparation of chloramine solutions

8. Working solutions of chloramine are prepared by stirring it until completely dissolved in water, preferably heated to 50-60 °.

9. For the preparation of chloramine solutions are required the following quantities drug:

10. Activated solutions of chloramine are prepared by diluting, first of all, a weighed amount of chloramine in cold or hot (50-60 °) water until completely dissolved, followed by the addition of an activator (chloride, sulfate, ammonium nitrate) in an amount equal to the amount of active chlorine in the solution, and ammonia is added 8 times less. Activated solutions of chloramine are used immediately after preparation.

11. To prepare 1 or 10 liters of activated solution, you need:

III. The use of chloramine solutions

12. Solutions of chloramine in various concentrations are used for disinfection in case of intestinal and droplet infections of bacterial and viral etiology, tuberculosis, fungal diseases.

14. With these infections, chloramine solutions are used to wipe or irrigate surfaces and soak disinfected objects, and also, in some cases, to fill secretions.

The modes of disinfection of various objects for the listed infections are presented in Table. 1-5 .

Table 1

MODES OF DISINFECTION OF OBJECTS WITH CHLORAMINE IN THE FOCUSES OF INTESTINAL AND DROP INFECTIONS OF BACTERIAL ETIOLOGY

table 2

MODES OF DISINFECTION OF OBJECTS IN FOCI OF MICROSPORA, TRICHOFITHIA AND FAVUS

Table 3

MODES OF DISINFECTION OF OBJECTS IN FOCI OF VIRAL HEPATITIS AND ENTEROVIRUS INFECTIONS

Table 4

MODES OF DISINFECTING OBJECTS WITH ACTIVATED CHLORAMINE SOLUTIONS IN TB FOCI

Note: According to the instructions for the current and final disinfection for tuberculosis N 744-68, the use of non-activated solutions of chloramine in the foci of tuberculosis is not recommended.

Table 5

MODES OF DISINFECTION OF OBJECTS WITH ACTIVATED SOLUTIONS OF CHLORAMINE IN ANTHRAX

IV. Precautions when working with chloramine

When working with chloramine, and especially its activated solutions, it is necessary to protect the respiratory organs with a RU-60 respirator. Work is done in a bathrobe, rubber gloves, apron.

The instructions for the use of chloramine for disinfection purposes dated December 24, 1947, from the moment these guidelines were approved, should be considered invalid.

Chloramine solution is the most popular disinfectant which does not lose its effectiveness over a long period of time. When applied to the surface, it has a disinfecting effect for 2-5 minutes. It also has deodorant properties - eliminates any unpleasant odors. All types pathogenic microorganisms, known modern science, do not have a pronounced resistance to the effects of a properly prepared chloramine solution. This number also includes mycobacterium tuberculosis, spirochete and diphtheria bacillus. The mycelium of the fungus has relative stability, but its destruction requires a longer exposure of the solution.

Scopes of chloramine

The prepared solution of chloramine, depending on its concentration, can be used for:

• disinfection of the wound and purulent surface skin person;
• disinfection of hands and surgical gloves before medical procedures;
• preliminary sterilization of instruments (with the exception of metal parts);
• treatment hard surfaces for the purpose of destroying pathogenic microflora in rooms where there are patients with contagious forms of diseases;
• treatment of objects with washable surfaces in case of infection with scabies mite.

If necessary, it can be replaced with neomagnol or chlorazene solution. During use, avoid contact with eyes and mucous membranes. May cause short-term irritation, which manifests itself in the form of hyperemia and mild degree swelling of soft tissues.

In most cases it is supplied as concentrated solution packed in sealed glass containers with different capacities. So it is possible to purchase in the form of a powder, which is diluted before use in accordance with the instructions for the use of chloramine.

Preparation of chloramine

To prepare a working solution of chloramine, it is necessary to determine the recommended concentration active substance. Depending on the ultimate goal disinfection can be applied 0.25 - 5% solution.

For cooking, a container with the required volume is taken. With the help of a measuring tube from the place of storage of the concentrated solution, right amount. The standard solution supplied by the pharmaceutical industry has a concentration of 10%. It is easy to calculate that to obtain 1 liter of a 1% solution, 1 liter of water and 100 ml of chloramine will be required.

You can prepare a solution of chloramine based on powder. To do this, take 10 liters boiled water heated to a temperature of 45 degrees Celsius. For this amount, 1 kg of chloramine powder is taken. The result is a 10% solution, on the basis of which working fluids are created for direct use. If necessary, a solution of the desired concentration is initially prepared. The shelf life of the prepared liquid is no more than 4 days.

To enhance the disinfectant properties, you can use a combination with ammonia, bleach and ammonium sulfate.

Chloramine has been the most popular disinfectant solution for many years. Instructions for use classify it as a low-hazard means. Subject to the rules for the preparation and use of the solution, it does not cause irritation of the skin and mucous membranes. And, unlike, it does not destroy paint on objects and gently affects fabrics. Therefore, this remedy is often used in children's and medical institutions as well as at home.

Characteristics of "Chloramine"

It contains 30% active chlorine. Available in powder to prepare even 0.2% is already effective. After dissolution, it is used for disinfection. infected wounds and surface disinfection. Active against most bacteria and fungi.

Destroys the causative agents of many dangerous diseases, including tuberculosis, hepatitis, plague, cholera and anthrax. The solution acts quickly, within 5 minutes after applying it to the surface, most microorganisms die. What other action does "Chloramine" have? Instructions for use recommends using it to destroy unpleasant odors in toilets and common areas.

When to apply

Depending on the concentration of the working solution, "Chloramine" is used to disinfect human skin and household items. Apply it in such cases:

"Chloramine": instructions for use

The price of this tool depends on the packaging and form of release. Most often, chloramine is sold in plastic bags in powder form. It costs 100-200 rubles per kilogram.

The solution is a little more expensive - 300-500 rubles per pack. It is necessary to store the drug, protecting from light and moisture, in a tightly closed container. What concentration should be the drug "Chloramine"? Instructions for use recommends diluting it like this:

• for processing hands - 0.5%;
• for wetting napkins and washing wounds - 1.5-2%;
• for disinfection with intestinal and drip infections - 2-3%, and with tuberculosis - up to 5%;
• for more thorough disinfection, an activated solution with the addition of ammonia or

The powder is best dissolved in warm water, ready solution stored no more than 2 weeks. Dilute the powder at a concentration of 1 kg per 10 liters. It is more convenient to use "Chloramine" already in dissolved form. Instructions for use notes that a 10% solution is sold, which must be diluted with water to the desired concentration. Use a product for irrigating surfaces, wiping them with a damp cloth moistened with a solution, or for soaking linen and dishes.

special instructions

There are also some other rules:

• "Chloramine" should not be applied to the face, one should try to avoid contact with the eyes and mucous membranes;
• do not use the drug in case of individual intolerance;
• do not apply to the skin with inflammatory diseases;
• toys, underwear and household items after processing should be rinsed well with running water;
• when working with concentrated (more than 1%) and activated Chloramine solutions, rubber gloves must also be used.

Why do many people choose Chloramine for disinfection? Instructions for use, reviews and experience of use in various institutions show it high efficiency and security.

1. GENERAL PROVISIONS

1.1. "Chloramine B" is a sodium benzenesulfochloramide, produced in the form of a finely crystalline powder from white to light yellow in color with a slight smell of chlorine. The content of active chlorine in the product is 25.0±1.0% (by volume).

1.2. The shelf life of the product in unopened original packaging of the manufacturer is 5 years. The shelf life of non-activated solutions is 15 days (if stored in a dark, cool place in a closed container).

Produced in polyethylene bags of 25 kg; and / e packages of 300 g. laid in fiber drums with polyethylene liners.

Storage of the product is carried out at a temperature of -20 ° C to +30 ° C in hermetically sealed original packaging of the manufacturer away from sources of heat and open flame, separately from medicines in a dry, dark and cool place out of the reach of children.

1. 
   In case of accidental spillage of the product, collect it and poison it for disposal in the manner prescribed regional centers Gossanepidnadzor. Wash off the rest large quantity water and neutralize with 5% soda ash or sodium sulfite. In this case, individual protective clothing, boots and personal protective equipment should be used: for respiratory organs - universal respirators of the RLG-67 or RU-60 M type with a brand V cartridge. For the eyes - sealed goggles, for the skin of the hands - rubber gloves.

1. 
   Transportation of the product is possible by any means of transport in the original packaging of the manufacturer in accordance with the rules for the carriage of goods in force for each type of transport and guaranteeing the safety of the product and charm.

1. 
   According to the degree of impact on the body and the parameters of acute toxicity according to GOST 12.1.007-76, Chloramine B belongs to the 3rd class of moderately hazardous substances when administered into the stomach, moderately toxic when administered parenterally, low hazard in terms of volatility (vapours), in the form of a powder it has a pronounced local - irritating effect on the skin and mucous membranes of the eyes and weak sensitizing effect. Working solutions up to 1% (per preparation)) with repeated exposure do not cause local irritant action, and working solutions over 1% cause dry skin, in aerosol form I cause! irritation of the respiratory organs and mucous membranes of the eyes. MAC r/! for chlorine - 1 mg / mg. %
2. 
   Means "Chloramine B" is intended for:

• 
  preventive, ongoing and final disinfection of surfaces, hard furniture in rooms, internal surfaces (salons) at transport facilities , including sanitary, sanitary equipment, linen, tableware from various materials, laboratory utensils, patient care items, toys, cleaning material and inventory, biological residues * liquids on surfaces - medical and preventive, children's institutions, in clinical, microbiological, virological laboratories, in foci infectious diseases: at public catering, trade, communal facilities (hotels, hostels, baths, laundries, hairdressers, swimming pools, sports complexes, etc.), in penitentiary institutions, social security institutions,
• 
  carrying out general cleaning in healthcare facilities and children's institutions;
• 
  disinfection of products medical purpose, including dental instruments made of mild steel, nickel-plated metals, rubbers. glass, plastics (except for endoscopes and instruments for them).

1. 
   Working solutions of Chloramine B are prepared in enameled, glass or polyethylene containers by stirring the powder in water. For faster dissolution of Chloramine B, water heated to 50-60 ° C should be used.
2. 
   And the activated solutions of the agent are prepared in accordance with the calculations given in Table 1.

1. 
   To impart washing properties to the working solutions of Chloramine B, it is allowed to add synthetic detergents approved for pre-sterilization cleaning of medical devices ( Lotus , Lotus-automatic, Astra, Progress) in the amount of 0.5% (5 g / l of solution or 50 g / 10 l of solution).
2. 
   Activated solutions of Chloramine B are prepared by adding an activator (one of the salts of chloride, sulfate or ammonium nitrate) to its working solutions. The ratio of the amount of ammonium salt and the amount of active chlorine in the working solution is 1:2.
3. 
   Activated solutions are used immediately after preparation. Not subject to storage. When preparing activated solutions of Chloramine B, use the calculations shown in Table 2.

X = -Bx100, where

X - the amount of water (ml) that must be taken to obtain a working solution with the required content of active chlorine; B - content of active chlorine in the agent, grams: BUT - concentration of active chlorine in the working solution, %.

3. APPLICATION OF SOLUTIONS OF THE MEANS "CHLORAMINE B"

3.1. Solutions of the product are used to disinfect surfaces in rooms (floors, walls, doors, hard furniture, etc.) and internal surfaces (salons) at transport facilities, including sanitary, sanitary equipment, cleaning equipment, linen, tableware and laboratory utensils , toys, patient care items, residual amounts of biological fluids on surfaces, medical products made of corrosion-resistant metals , glass, plastic, rubber.

3.2. It is allowed to use solutions of Chloramine B with the addition of synthetic detergent, permitted for pre-sterilization cleaning of medical devices, in the amount of 0.5% (5 g / l of solution or 50 g / 10 l of solution).

Disinfection of objects is carried out by wiping, spraying, immersing and soaking.

3.3. Surfaces in rooms (walls, floors, doors, etc.), (baths, sinks, etc.) I wipe! with a rag soaked in a solution of the agent or irrigated from a hydro-panel, automax, or a Quasar-type sprayer. The consumption rate of the product when wiping is 150 ml / m 2 of the surface, when using a solution with detergent - 100 ml / m 2, when irrigating - 300 ml / m 2. Upon completion of disinfection, the sanitary equipment is washed with water, the room is ventilated until the smell of chlorine disappears.

3.4. Disinfection of internal surfaces (interiors) of transport facilities (except for sanitary ) carried out according to the regimen bacterial infections(Table 3) -1.0% solution (according to the preparation) with an exposure of 60 minutes, carried out by wiping with a rag moistened with solutions of the agent at the rate of 100 ml / m 2 or by irrigation at the rate of 150 ml / m "until complete wetting over the surfaces .

Disinfection at sanitary transport facilities is carried out according to the regimen for tuberculosis (Table 5) with a 0.5% activated solution with an exposure of 60 minutes, or with a non-activated 5.0% solution with an exposure of 120 minutes.

1. 
   linen soak in containers with a solution of the agent at a consumption rate of 4 l / kg of dry linen (for tuberculosis, dermatophytosis - 5 l / kg). Close containers tightly! lid. At the end of the disinfection, the linen is washed and rinsed.
2. 
   cleaning equipment immerse in a solution of the agent, at the end of the disinfection time, rinse and dry.
3. 
   tableware , freed from food debris is immersed in the product solution at a consumption rate of 2 liters per 1 set. The container is closed with a lid. At the end of disinfection, the dishes are washed with water until the smell of chlorine disappears.
4. 
   Disinfection of patient care items carried out by methods of irrigation, wiping or immersion; toys - method of immersion in the agent solution. At the end of disinfection, they are washed with water until the smell of chlorine disappears.
5. 
   Disinfection of biological residues .liquids surfaces (blood, saliva, cerebrospinal fluid etc.) is carried out by filling with powder means "Chloramine B" until completely absorbed biological fluids at a ratio of 1:1 and an exposure of 60 minutes; either by filling with a non-activated 5.0% solution of the agent at an exposure of 240 minutes (according to the regime effective for tuberculosis) or an activated 1.0% solution of the agent for 120 minutes. After the exposure time, the powder is disposed of in accordance with SanPiN 2.1.7.728-99 , storage and disposal of waste from medical institutions”. The collection container is disinfected by wiping according to the regimens for tuberculosis (Table 5). Sputum disinfection is carried out with a 2.5% solution of the agent at an exposure of 120 minutes at a ratio of sputum and agent of 2:1.
6. 
   When disinfecting medical devices destination , glassware they are completely immersed in the working solution of the agent, the channels and cavities of the products are filled with a solution using syringes, avoiding the formation of air pockets; detachable products are immersed in the solution disassembled. Products with locking parts are immersed open, having previously made several working movements with them for better penetration of the solution into hard-to-reach areas of the products in the area of ​​the locking part. The thickness of the agent solution layer above the products must be at least 1 cm.

3.11. Disinfection modes with solutions of Chloramine B are given in Table. Z-6.

1. 
   In hotels , hostels, clubs and other public places, disinfection of various objects is carried out under the regimes for bacterial infections (Table 3).
2. 
   In baths, hairdressers, swimming pools, sports complexes etc. when carrying out preventive disinfection, the treatment of objects is carried out according to the regimens recommended for dermatophytosis (Table 6).
3. 
   General cleaning in medical and preventive and children's institutions is carried out in accordance with the regimes presented in Table. 7.
4. 
   In social security institutions, in barracks, in penitentiary institutions, disinfection is carried out according to the regimens for tuberculosis (Table 5).

Table 4 MODES OF DISINFECTION OF OBJECTS WITH SOLUTIONS OF THE MEANS "CHLORAMINE B" IN VIRUS INFECTIONS

(HEPATITIS B, POLIO, HIV)

Target: disinfection

Equipment:

Overalls

A weight of dry powder of chloramine 10g, 20, 30.

Water capacity with marking up to 1l

Disinfectant container

Wooden spatula.

Action algorithm:

1. Put on overalls.

2.Pour into the marked container a small amount of water.

3. Pour the required amount of dry chloramine powder into the container.

4. Add water to 1 liter, stir and close the lid.

5. Mark the date and time of preparation of the solution on the tag, sign it.

Note: A 0.5% chloramine solution is used to disinfect tableware. A 1% solution of chloramine is used to treat items that have not been in contact with the patient's blood and mucous membranes, and to clean the premises. A 3% solution of chloramine is used to disinfect instruments and care items that come into contact with the patient's blood and mucous membranes. A 5% solution of chloramine is used for general cleaning of premises, disinfection of objects and instruments in contact with tuberculosis infection.

Strictly observe safety precautions when working with disinfectants. If the solution gets on the skin or mucous membranes, rinse them quickly and abundantly with running water (use a freshly prepared solution once).

ALGORITHM FOR STERILIZATION OF MEDICAL DEVICES IN A DRYING CABINET

Target: destruction of vegetative forms of microorganisms and their spores.

Terms:

Sterilization of products made of glass, metal, fine porcelain.

Sterilization in an open way, on trays.

All sterilized utensils, tools must be pre-disinfected, subjected to pre-sterilization treatment.

Requirements: Do not wrap materials to be sterilized in cotton, silk or synthetic fabrics: they will burn or char.

Action algorithm:

1. Treat the dry oven inside by 2 times wiping with a rag soaked in a disinfectant solution.

2. Place the tools on the rack in the trays.

3. To control the performed sterilization, place test indicators at 5 control points (2 indicators on back wall, 2 - on the front and 1 - in the center). Turn on the dry oven, at 180 degrees sterilization lasts 60 minutes, this time is made up of 25 minutes. materials needed for heating, and 35 min. - the period of death of microorganisms and their spores at a specified temperature.

4. Turn off the oven, open the doors only after With lowering the temperature to 45-50 degrees. A nurse in a clean surgical gown, wearing a mask, wearing sterile gloves, pulls out sterile instruments in trays.

Note: make a note in the sterilization control log.

INSTALLATION OF STERILIZATION BOXES

Target: laying for sterilization in an autoclave and maintaining sterility during storage for a regulated time.

Equipment:

Disinfectant: 1% solution of chloramine(or other regulated solution)

Rags marked "for biks" - 2 pieces

Containers for disinfection of rags, gloves

Gloves, mask

Large linen (coarse calico) napkin for lining inner surface slut

Dressing, medical products

Sterilization boxes of various capacities and shapes with tags.

Action algorithm:

1. Wash your hands, dry.

2. Check the health of the bix.

3. Disinfect biks twice with an interval of 15 minutes from the inside and outside.

4. Line the inside of the bix with a linen napkin so that it hangs 2/3 of the height of the bix.

5. Place materials or products loosely so that ventilation is maintained between them.

6. Put the sterilization indicator on three levels according to temperature regime for this type of product.

7. Cover with a napkin hanging from the edges of the bix, all the laid material.

8. Close the bix cover with a padlock.

9. Attach a tag to the handle indicating the name of the department and office, the type of material to be sterilized.

10. Open the windows in the biks and lay in the autoclave.

Note: Bix delivery to the CSO is carried out in a dense clean bag, delivery from the CSO is also carried out in a dense clean bag.

AZOPYRAMIC TEST

Target: conduct a comprehensive quality control of pre-sterilization cleaning of medical instruments.

Equipment:

Stock solution of azopyram

3% hydrogen peroxide solution

Glass with blood smears

Tray with cotton swabs, tools subject to quality control

Journal of pre-sterilization cleaning control.

Terms:

Use of a freshly prepared 1% solution of azopyram for 1-2 hours.

Action algorithm:

1. Check the activity of the working solution by dropping a few drops on the glass with a blood smear, if there is a change in the color of the reagent, then the reagent is “working”.

2. Apply 1 - 2 drops of 1% working solution of azopyram with a pipette on the product.

A blue-violet color indicates the presence of blood.

5. When positive sample the entire batch of products is subject to repeated cleaning, starting from the first stage of decontamination.

6. Record the results of the test in the log book.

Note:

ALGORITHMS FOR QUALITY CONTROL OF PRE-STERILIZATION PROCESSING

PHENOLPHTHALEIN TEST

Target: quality control of cleaning of medical products from the washing solution.

Equipment:

Reagent: 1% alcohol solution phenolphthalein

Reagent pipette

Tray with cotton swabs

Tools subject to quality control.

Action algorithm:

1.Apply 1-2 drops of 1% alcohol solution phenolphthalein on the product.

2. Hold the instrument over the cotton, observing the color of the flowing reagent.

4.When negative test the color of the reagent does not change.

5. With a positive sample, the color of the reagent changes from pink to crimson. In this case, the products must be washed again under running water.

Note: quality control of pre-sterilization cleaning is subject to 1% of total products.

ALGORITHM FOR GENERAL CLEANING OF THE ROOM

Target: destruction of pathogenic and conditionally pathogenic microorganisms.

Requirement:

General cleaning is carried out once a week according to the schedule.

Cleaning should be carried out from the least polluted places to the most polluted, as well as from high-lying areas to lower ones.

Terms:

General cleaning should be carried out in the absence of patients.

Action algorithm:

1. Put on a change of sanitary clothing for general cleaning.

2. Prepare a disinfectant solution according to the instructions supplied with the disinfectant used.

3. For general cleaning, use labeled cleaning equipment.

4. Take out the trash.

5. Roll up bedding, move beds, bedside tables to the center of the room.

6. Sweep cobwebs from the ceiling.

7. Using a rag, abundantly moistened with disinfectant, irrigate in a certain sequence: walls, glass, window sill, heating system pipes, furniture, floor.

8. Treat the sink with a cleaning agent with a special rag, which must be disinfected or boiled after use.

9. After 1 hour, wash off with a clean rag soap and soda solution (for 10 liters of water 25 g of detergent, 25 g of soda ash) treated surfaces.

10. Dry the treated surfaces with a dry cloth.

11.Turn on bactericidal irradiator for 30 minutes, leave the room.

12. Remove gloves, wash your hands.

13. Ventilate the room for 10 minutes.

Note: after the general cleaning, free the containers from dirty water, prepare a disinfectant solution, immerse the disinfection cloth for 1 hour. Dry the rags and store them dry in a place specially designated for storing cleaning equipment. Wipe the mop with a rag soaked in a disinfectant solution.

DISINFECTION OF MEDICAL INSTRUMENTS

Stage - disinfection

Target: ensuring infectious safety.

Equipment:

Two appropriately labeled containers with a disinfectant solution for cleaning instruments from blood and other body fluids

Spent medical devices

Cotton-gauze swabs or brushes for washing tools.

Terms: disinfect products immediately after use

1. Put on overalls: gown, mask, gloves.

2. Prepare a disinfectant solution in two containers.

In the first container:

Rinse by filling the internal channels of medical devices.

In the second container:

Fill the internal channels of medical devices by completely immersing in the solution;

Close the container with a lid for 1 hour;

After 1 hour, rinse the medical devices repeatedly under running water, put them in a tray.

3.Pour out the used disinfectant. solution to the sewer.

4. Take off the gloves, drop them into the KBU.