labels, and zones within the gel manufacturing department where color coding is employed.

3. Responsibilities

• Production Personnel: Adhere to color coding guidelines during manufacturing operations.
• Engineering Team: Ensure correct painting and labeling of pipelines and equipment as per color code.
• Quality Assurance: Verify compliance with the color coding policy during area and equipment audits.

4. Accountability

Department Head – Gel Manufacturing

5. Procedure

5.1 Color Coding Guidelines

The following standardized color coding shall be used:

Item	Color Code	Purpose
Purified Water Lines	Sky Blue	Indicates water pipeline
Compressed Air Lines	Yellow	Compressed air pipeline
Steam Lines	Red	Live steam pipeline
Vacuum Lines	Grey	Vacuum pipeline
Product Contact Equipment	Green	Indicates clean contact surfaces
Non-product Contact Equipment	White	Indicates general utilities
Reject Materials	Black	Identification of rejected items
Clean Garments	Blue	Indicates cleanroom attire
Used Garments	Brown	Garments awaiting laundering
Labels for Raw Materials	Pink	Easy identification of RM
Labels for Intermediates	Yellow	In-process material ID
Labels for Finished Product	White	Release status and traceability

5.2 Implementation

1. Ensure painting or tagging of all items using durable, non-toxic, and heat-resistant color coatings.
2. Display a laminated color code chart at entry points and key manufacturing areas.
3. Ensure personnel are trained on the correct interpretation and usage of the color coding scheme.

5.3 Maintenance and Audit

1. Engineering team to inspect and refresh color markings every 6 months.
2. QA to verify compliance with SOP during routine audits and deviation investigations.

5.4 Deviations

1. Any observed deviation from color coding must be immediately reported to QA.
2. Record deviation in the Non-Conformance Register and take corrective actions.

6. Abbreviations

• QA: Quality Assurance
• SOP: Standard Operating Procedure
• RM: Raw Material

7. Documents

1. Color Coding Display Chart – Annexure-1
2. Line and Equipment Color Coding Checklist – Annexure-2

8. References

• IS 2379: Color code for identification of pipelines
• WHO GMP Guidelines

9. SOP Version

Version: 2.0

10. Approval Section

	Prepared By	Checked By	Approved By
Signature
Date
Name
Designation	Jr. Production Chemist	QA Executive	Head – Manufacturing
Department	Gel Manufacturing	Quality Assurance	Manufacturing

11. Annexures

Annexure-1: Color Coding Display Chart

Area	Item	Color Code
Manufacturing Area	Water Lines	Sky Blue
Utilities	Steam	Red
Personnel	Clean Garments	Blue

Annexure-2: Color Coding Checklist

Item	Color as per SOP	Observed Color	Status	Remarks
Purified Water Pipeline	Sky Blue
Clean Garment Bin	Blue
Label for Finished Product	White

Revision History

Revision Date	Revision No.	Change Description	Reason	Approved By
01/03/2022	1.0	Initial version	New SOP	QA Head
09/06/2025	2.0	Added pipeline and garment codes	Compliance & Visual Controls	QA Head