Preparation and Standardization of 0.1M Ethanolic Sodium Hydroxide Solution SOP

Infographic for preparation and standardization of 0.1 M ethanolic sodium hydroxide solution with apparatus, reagents, steps, benzoic acid titration, calculation of molarity, and storage conditions.

This article describes the SOP for preparation and standardization of 0.1M ethanolic sodium hydroxide solution. It includes apparatus, reagents, preparation of the thymolphthalein indicator, preparation of sodium hydroxide solution, standardization procedure of benzoic acid, formula to calculate the molarity, storage conditions and reference as per IP norms. It is a guide for pharmaceutical quality control and analytical laboratories.

List of Pharma Companies in Ahmedabad (Verified 2026)

Pharma companies in Ahmedabad, Gujarat with modern pharmaceutical manufacturing facilities.

As one of the major pharmaceutical manufacturing cities of India, Ahmedabad has multinational companies like Zydus Lifesciences, Torrent Pharmaceuticals, Cadila Pharmaceuticals and Intas Pharmaceuticals. The companies are producers of generics, biosimilars, vaccines, injectables and APIs with the facilities located at Sanand, Moraiya, Changodar and Bavla (PHARMEZ) industrial estates. Working in tandem with the pharmaceutical ecosystem … Read more

IND Application Explained: FDA Clinical Trial Approval Process Step-by-Step (2026 Guide)

Pharmaceutical researchers reviewing an FDA IND application with clinical trial data, laboratory testing reports, and drug development documentation inside a modern research facility.

IND, or the Investigational New Drug Application, is a U.S. permission process required to move any new medicine or therapy from laboratory research to human testing, meaning clinical trials. For example, imagine scientists have developed a new medicine. They cannot directly test it on humans. First, they must submit proof to the U.S. drug authority through an … Read more

Laboratory Color Test Procedure: Step-by-Step Guide

Blue SOP file for laboratory color test procedure placed on a stainless steel table in a pharmaceutical QC laboratory

1.0 Scope: Procedure is applicable to perform the colour test of the sample wherever specified. Learn: Procedure to Check Clarity of Sample Solution 2.0 Apparatus:You will need: 3.0 Reagents:Use analytical grade (AR) chemicals for the following: 4.0 Method: A. Ferric Chloride Colorimetric Solution (FCS) Dissolve roughly 55 g of ferric chloride hexahydrate in a mixture … Read more

SOP for Cleaning of Vacuum Cleaner

Vacuum Cleaner Cleaning Record annexure used in pharmaceutical production department for documenting equipment cleaning activities and maintenance procedures.

1.0 OBJECTIVE: To lay down a procedure for cleaning of vacuum cleaner. 2.0 SCOPE: This procedure is applicable to cleaning of vacuum cleaner used in production department in the Pharmaceuticals. 3.0 RESPONSIBILITY:Operator, Officer, Executive – Production DepartmentManager – Production Department 4.0 DEFINITION(S):NA 5.0 PROCEDURE: 5.1 Ensure that the power supply is turned off.5.2 Transfer the … Read more

SOP for DM Water Plant (Operation and Maintenance)

Blue SOP file labeled “SOP for DM Water Plant (Operation and Maintenance)” placed on a stainless steel table inside a pharmaceutical production area, with blurred DM water plant equipment and a chemist working in the background

1.0 OBJECTIVE: To lay down the procedure for operation and maintenance of DM water plant. 2.0 SCOPE: This procedure applies to DM water plant in Pharmaceuticals. 3.0 RESPONSIBILITY: Production In-Charge, Maintenance personnel, Maintenance Engineer. Learn: SOP for Preventive Maintenance of DM Plant 4.0 PROCEDURE for DM Water Plant: 4.1 PLANT SPECIFICATIONS:Maximum flow rate: 1.2 m3 … Read more

AHU Performance Qualification (PQ) Protocol: Environmental Monitoring & Validation Guide

AHU performance qualification environmental monitoring with particle counter in cleanroom

AHU Performance Qualification (PQ) Protocol Objective: The objective of this protocol is to verify that the AHU consistently maintains required environmental conditions during routine operation. Learn the Previous Steps of AHU Qualification: Installation Qualification Protocol for AHUOperation Qualification Protocol for AHU 1.0 PROTOCOL APPROVAL: Submitting this page for Protocol No. is acceptance of the Appendix … Read more

AHU Operational Qualification (OQ) Protocol: Testing Procedures, Formats & Limits

AHU operational qualification testing airflow velocity and HEPA filter integrity in cleanroom

AHU Operational Qualification (OQ) Protocol Objective: The objective of this protocol is to verify that the AHU operates within defined parameters such as airflow, pressure, and filter integrity. 1.0 Protocol Approval: Signing this approval page confirms that the qualification approach described in this protocol is accepted. If any change becomes necessary, it will be handled … Read more

AHU Installation Qualification (IQ) Protocol: Complete Guide with Format & Checklist

AHU installation qualification checklist showing equipment setup verification in pharma cleanroom

AHU Installation Qualification (IQ) Protocol Objective: The objective of this protocol is to verify that the AHU is installed as per approved design specifications, drawings, and manufacturer recommendations. This AHU Installation Qualification (IQ) Protocol covers the following: Related Topic: Learn Operational Qualification and Performance Qualification of AHU. SERIAL NO. ITEM DESCRIPTION 1.0 Identification and inspection … Read more