Information material
Methodological guidelines for using Aquasoli disinfectant solution
Methodological Guidelines
These guidelines are intended for staff of healthcare facilities, sanitary and epidemiological services and disinfection services, as well as other institutions authorised to carry out disinfection activities.
1. General information
1.1 Neutral anolyte (hereinafter Aquasol), produced by electrochemical treatment of an aqueous sodium chloride solution, is a colourless liquid with a chlorine odour, containing highly active oxygen compounds of chlorine and other components.
Depending on its intended use, Aquasol is produced and used with an active chlorine concentration of 0.01%–0.05% and a pH of 7.2–8.2.
Aquasol is used undiluted, once only.
1.2 Aquasol has antimicrobial (virucidal, bactericidal, fungicidal, tuberculocidal and sporicidal) and cleaning properties.
In the presence of organic contaminants (blood, faeces and others), Aquasol’s disinfecting properties decrease.
1.3 In terms of its effects on the body, Aquasol belongs to Class IV, low-hazard substances, under GOST 12.1.007-76. It has low toxicity when it enters the stomach or is applied to the skin; when administered parenterally, it has no local irritating effect on the skin or the mucous membranes of the eyes.
Vapour from Aquasol with an active chlorine concentration of 0.05% slightly irritates the upper respiratory tract and the mucous membranes of the eyes, while repeated skin exposure may cause dryness.
Aquasol with active chlorine concentrations of 0.01%, 0.02% and 0.03% does not cause irritation.
1.4 Aquasol is used to disinfect various objects in cases of infections of bacterial, viral and fungal origin.
2. Use of Aquasol for disinfection2.1 Aquasol is used to disinfect various objects (room surfaces, patient-care items, tableware, linen, toys and sanitary fixtures) in cases of infections of bacterial origin (including tuberculosis), viral origin (including AIDS and parenterally transmitted hepatitis) and fungal origin (including candidiasis and dermatophytosis); it is also used for pre-sterilisation cleaning and sterilisation of medical devices made of glass, plastic, rubber and metal, including titanium alloys (Aquasol can be used for sterilisation for 10 days, provided it is stored in a closed glass, plastic or enamelled container with an undamaged surface, at room temperature and away from direct sunlight).
2.2 Disinfection with Aquasol is performed by wiping (room surfaces and sanitary fixtures) or immersion (medical devices, patient-care items, tableware, linen, toys and cleaning materials).
2.3 Wipe room surfaces (floors, walls and furniture) and sanitary fixtures once or twice, at a 15-minute interval, with a cloth thoroughly soaked in Aquasol. Moisten the treated surface evenly.
The Aquasol consumption rate is 200 ml/m² for a single treatment and 300–400 ml/m² for a double treatment.
Thoroughly pre-clean heavily soiled sanitary fixtures with a brush soaked in Aquasol.
2.4 Disinfect medical devices, including when disinfection is combined with pre-sterilisation cleaning, in covered plastic or undamaged enamelled containers. Disinfection schedules are given in Tables 1 and 2.
The items are completely immersed in Aquasol. Using special tools such as a syringe or pipette, fill the channels and cavities with Aquasol so that air bubbles are expelled. Treat disassemblable devices in their disassembled state.
Immerse hinged instruments (scissors and dressing forceps) in Aquasol in the open position. After immersion, operate them several times to allow Aquasol to enter the hinged mechanisms.
After the disinfection exposure time has elapsed, the instruments are rinsed for one minute under running drinking water or placed for one minute in a basin of water so that all cavities and channels are thoroughly rinsed.
2.5 Fully immerse patient-care items in Aquasol; after the disinfection time has elapsed, rinse them under running water until the chlorine odour has completely disappeared.
2.6 Remove food residues from tableware and fully immerse it in Aquasol.
The Aquasol consumption rate is 2 L per set (two plates and one cup or glass).
After disinfection, each dish item is rinsed separately for one minute under running drinking water, or the items are kept fully immersed in a basin of water for one minute.
2.7 Metal tableware must not be disinfected with Aquasol.
2.8 Fully immerse linen in Aquasol. The Aquasol consumption rate is 5 L per 1 kg of dry linen.
After disinfection, wash and rinse the linen in water.
2.9 Fully immerse toys in Aquasol and, after disinfection, rinse them under running water until the chlorine odour has completely disappeared.
2.10 Fully immerse cleaning materials (cloths) in Aquasol. After the disinfection time has elapsed, rinse them in water and dry them.
3. Use of Aquasol for pre-sterilisation cleaning of medical devices without disinfection3.1 Aquasol is used for pre-sterilisation cleaning of medical devices without disinfection according to the schedules in Table 3, using containers and immersion procedures analogous to those specified in section 2.4.
3.2 The quality of pre-sterilisation cleaning of medical devices is checked using amidopyrine or azopyram tests for residual blood, following the methods described in “Guidelines for Pre-Sterilisation Cleaning of Medical Devices” (No. 28-6/13, 08.06.1982) and “Guidelines for Checking Pre-Sterilisation Cleaning of Medical Devices Using Azopyram Reagent” (No. 28-6/13, 25.05.1988).
3.3 Check 1% of simultaneously treated items of the same type, but no fewer than 3 units.
Schedules for disinfecting various objects with Aquasol:Table 1
| Object to be disinfected | Bacterial and Viral Infections (Except Tuberculosis) |
Tuberculosis | Fungal Infections | Disinfection Method | |||
|---|---|---|---|---|---|---|---|
| Active Chlorine, % | Time, min | Active Chlorine, % | Time, min | Active Chlorine, % | Time, min | ||
| Room surfaces (floors, walls, hard furniture) |
0,02 | 120* | 0,02 0,05 |
360 90 |
0,02 0,05 |
120 30 |
Cleansing |
| Medical devices: Glass, metal, titanium alloys |
0,02 | 180 | 0,05 | 30 | 0,05 | 30 | Immersion |
| Plastic, silicone rubber | 0,02 | 60 | 0,02 0,05 |
180 30 |
0,02 0,05 |
240 30 |
Immersion |
| Natural rubber | 0,05 | 60 | 0,02 0,05 |
240 120 |
0,02 0,05 |
240 60 |
Immersion |
| Patient care items | 0,02** 0,05 |
180** 60 |
0,02** 0,05** 0,05 |
180** 30** 120 |
0,02 0,05** 0,05 |
240 30** 60 |
Immersion |
| Tableware without food residues |
0,02 | 60 | — | — | — | — | Immersion |
| Tableware with food residues |
0,02 | 360 | 0,02 0,05 |
360 60 |
0,02 0,05 |
360 60 |
Immersion |
| Linen not contaminated |
0,02 | 60 | — | — | — | — | Immersion |
| Linen contaminated |
0,02 | 360 | 0,05 | 180 | 0,02 0,05 |
240 60 |
Immersion |
| Toys | 0,02** 0,05 |
180** 60 |
0,05 | 60 | 0,05 | 60 | Immersion |
| Sanitary equipment | 0,05 | 60* | 0,05 | 120 | 0,02 0,05 |
240 30 |
Cleansing |
| Cleaning materials | 0,02 | 360 | 0,05 | 180 | 0,05 | 60 | Immersion |
Note:
* — Disinfection is performed by wiping twice at a 15-minute interval. The total disinfection time is shown, including the 15-minute interval between wipes.
** — Except for items made of natural rubber.
Schedule for disinfecting medical devices with Aquasol combined with pre-sterilisation cleaning
Table 2| Processing Stage | Processing Parameters | ||
|---|---|---|---|
| Aquasol concentration (Active Chlorine, %) |
Working Solution Temperature, °C | Processing Time, min | |
| Immersion in the working solution with complete submersion and filling of channels and cavities with the solution: Glass, metal, titanium alloys |
0,02 0,05 |
Not less than 18 | 180* 30** |
| Plastic, silicone rubber | 0,02 0,05 |
Not less than 18 | 60* 180(3)* 240(4)* 30** |
| Natural rubber | 0,02 0,05 |
Not less than 18 | 240** 60(5)* 120(4)* |
| Cleaning all items in the same solution used for soaking, using a brush, cotton or fabric swab, and flushing channels with a syringe: Items with locking mechanisms, channels, and cavities |
According to the concentration of the solution used during the soaking stage | Not less than 18 | 1,0 |
| Items without locking mechanisms, channels, or cavities | According to the concentration of the solution used during the soaking stage | Not less than 18 | 0,5 |
| Rinsing with running drinking water (channels — using a syringe or electric suction device) |
Not regulated | Not regulated | 1,0 |
| Rinsing with distilled water (channels — using a syringe or electric suction device) |
Not regulated | Not regulated | 0,5 |
Note: Items are disinfected during the Aquasol soaking stage:
* — For viral and bacterial infections, excluding tuberculosis.
** — For viral and fungal infections.
(3)* — For viral and bacterial infections, including tuberculosis.
(4)* — For viral, bacterial (including tuberculosis), and fungal infections.
(5)* — For viral, bacterial (excluding tuberculosis), and fungal infections.
Schedules for pre-sterilisation cleaning of medical devices with Aquasol after disinfection
Table 3| Pre-Sterilization Cleaning Stage | Cleaning Parameters | ||
|---|---|---|---|
| Working Solution Concentration (Calculated as Product), % |
Working Solution Temperature, °C | Processing Time, min | |
| Immersion in the working solution with complete submersion and filling of channels and cavities with the solution: Silicone and natural rubber products |
0,01 | Not less than 18 | 30 |
| Glass, metal, titanium alloys | 0,02 | Not less than 18 | 20 |
| Plastic | 0,02 | Not less than 18 | 20 |
| Cleaning all items in the same solution used for soaking with a brush, cotton swab, or cloth swab: Items without locking mechanisms, channels, or cavities |
According to the concentration of the solution used during the soaking stage | Not less than 18 | 0,5 |
| Items with locking mechanisms, channels, and cavities | According to the concentration of the solution used during the soaking stage | Not less than 18 | 1,0 |
| Rinsing with drinking water (channels and cavities — using a syringe or electric suction device) |
Not regulated | Not regulated | 1 |
| Rinsing with distilled water (channels and cavities — using a syringe or electric suction device) |
Not regulated | Not regulated | 0,5 |
Schedules for sterilising medical devices with Aquasol
Table 4| Material of Medical Devices | Active Chlorine Concentration, % | Sterilization Time, min |
|---|---|---|
| Devices made of glass, plastic, silicone rubber, and metal (simple instruments made of titanium alloys — forceps, scalpels, and others) |
0,02 | 60 |
| Devices made of natural rubber | 0,02 | 180 |
4.1 Sterilise medical devices with Aquasol according to the schedules in Table 4, using containers and immersion procedures analogous to those specified in section 2.4.
4.2 During sterilisation, including the stage of rinsing residual solution off the items, perform all procedures under aseptic conditions. Use sterile containers intended for Aquasol for sterilisation.
4.3 After the sterilisation time has elapsed, remove the items from Aquasol using sterile tweezers or dressing forceps, drain Aquasol from channels and cavities, and transfer the items to a sterile container of sterile drinking water to rinse off residual Aquasol.
Rinsing is carried out for 1 minute by completely immersing the device in water and filling all channels and cavities with water.
4.4 Remove the items free of Aquasol residue from the water and place them on a sterile drape. Use a sterile syringe or another device to remove water remaining in the channels, then transfer the items to a sterile sterilisation box lined with a sterile drape.
The storage period of sterilized medical devices shall not exceed three days.