Cleaning Disintegration Test Apparatus SOP

Step-by-step SOP for cleaning of disintegration test apparatus with frequency, procedure, and compliance guidelines.

SOP for Cleaning of Disintegration Test Apparatus

1.0 Objective

The objective of this SOP is to define a clear and compliant procedure for the Cleaning of Disintegration Test Apparatus to ensure accuracy, reliability, and contamination-free testing in the quality control laboratory.

2.0 Scope

This procedure applies to all disintegration test apparatus installed in the Quality Control (QC) laboratory and must be followed after routine testing and during scheduled maintenance.

3.0 Responsibility

Role	Responsibility
Technical Assistant	Perform cleaning activities
Technical Assistant / Executive	Verify and check cleaning

4.0 Accountability

The Head of Department (HOD) is accountable for ensuring proper implementation of this SOP for Cleaning of Disintegration Test Apparatus.

5.0 Procedure

5.1 Shutdown Procedure

• Switch OFF the instrument.
• Switch OFF the main power supply.

5.2 Cleaning of Assembly

Frequency: After every test

Steps:

1. After completing the disintegration test, carefully remove the beakers and assembly along with discs.
2. Wash all components thoroughly using purified water.
3. Allow them to dry and keep aside in a clean area.
4. Record the cleaning activity in the instrument log card.

5.3 Cleaning of Water Bath

Frequency: Once a week

Steps:

1. Ensure the instrument is switched OFF.
2. Remove the external probe from the water bath.
3. Take out the beakers along with the assembly.
4. Disconnect the lid and heater electrical connector.
5. Remove the water bath and discard the water into the designated container.
6. Wash the bath using:
   • Raw water
   • Detergent solution
   • Rinse again with raw water until no foam remains
   • Final rinse with purified water
7. Clean the external surface using a wet cotton cloth.
8. Wipe dry using a lint-free cloth.
9. Reinstall the water bath in its original position.
10. Refill with purified water up to the indicated level.

5.4 Additional Instructions

• Replace water immediately if it becomes dirty before the weekly schedule.
• Follow the same procedure outlined in section 5.3.

5.5 Documentation

• Record all cleaning activities as per Annexure-I.
• Ensure entries are accurate and signed by both “Cleaned by” and “Checked by” personnel.

Annexure-I: Cleaning Record Template

QC Department – Cleaning Record for Disintegration Water Bath

• Instrument Name:
• Make:
• Model No:
• Identification No:

Date of cleaning of Water bath	Due date of cleaning	Cleaned by	Checked by	Remarks

FAQs: Cleaning of Disintegration Test Apparatus

1. Why is cleaning of disintegration test apparatus important?

It ensures accurate test results and prevents contamination between samples.

2. How often should the apparatus be cleaned?

Assembly should be cleaned after every test, while the water bath should be cleaned weekly.

3. What type of water is used for cleaning?

Purified water is used for final rinsing to avoid residue.

4. Can detergent be used in cleaning?

Yes, but it must be thoroughly rinsed off to avoid foam or residue.

5. What should be done if water becomes dirty before schedule?

The water should be changed immediately following the water bath cleaning procedure.

6. Who is responsible for cleaning the apparatus?

A Technical Assistant performs the cleaning, and it is verified by an Executive or another Technical Assistant.

7. What should be recorded after cleaning?

All cleaning activities must be documented in the instrument log card and Annexure-I.

8. Why is a lint-free cloth used?

It prevents fiber contamination on the apparatus surfaces.

9. Is it necessary to switch off the instrument before cleaning?

Yes, switching off ensures safety and prevents damage to the equipment.

10. What happens if cleaning is not done properly?

Improper cleaning can lead to inaccurate results, contamination, and non-compliance with quality standards.