Procedure Library

40 Quality-Control Procedures

Standardised laboratory protocols extracted from Part IV of the ProChem reference. Each card opens a step-by-step interactive view with reagents, equipment, and acceptance criteria.

Ch 2 — Surfactant Chemistry

Methylene Blue Active Substances (MBAS) Test for Anionic Surfactant Identification

Cobalt Thiocyanate Active Substances (CTAS) Test for Nonionic Surfactant Identification

Ch 17 — Identity & Basic QC

Active Matter Determination for Anionic Surfactants — Potentiometric Titration

Active Matter Determination for Nonionic Surfactants — Cobalt Thiocyanate Complexation Method

pH Measurement — Electrode Calibration and Temperature Correction

Moisture Content Determination — Karl Fischer Titration and Oven Drying

Density and Specific Gravity — Hydrometer, Digital Densitometer, and Pycnometer Methods

Solubility Test — Dissolution Rate and Visual Clarity Assessment

Foam Test — Ross-Miles Foam Height

Viscosity Measurement — Brookfield Viscometer

Thermal Stability Test — Accelerated Storage at 40°C / 75% RH

Compatibility Test — Binary Mixtures with Key Co-ingredients

Ch 18 — Powder Analysis

Apparent Bulk Density Measurement — ISO 697:1981 Method

Moisture Content — Oven Drying and Karl Fischer Methods

Total Active Matter — Extraction and Titration

Particle Size Distribution — Sieve Analysis

Dissolution Rate and Dispersibility

Flowability — Angle of Repose and Carr Index

pH Measurement — Calibrated Glass Electrode

Viscosity — Brookfield Viscometer

Active Matter Content — Anionic and Nonionic

Clarity and Turbidity Assessment

Thermal Stability — Accelerated Storage Test

Cold Stability — Low-Temperature Storage Test

Ch 19 — Liquid & Softener Analysis

Cationic Active Matter Determination — Potentiometric Titration

Emulsion Stability — Centrifuge Test

Total Acid Content — Acid-Base Titration

Corrosion Testing — Weight Loss Method

Evaporation Rate — Standardized Film Method

Streak-Free Performance — Standardized Soiled Panel Test

Ch 20 — Lab Instrumentation

Equipment Calibration Schedule

Ch 21 — Microbiology & Stability

General Liquid Detergent Batch Process

High-Viscosity Product Manufacturing

Dry Mixing/Blending Process

Spray Drying Slurry Preparation

Ch 23 — Process Control & Calibration

Daily Mixer Inspection

Pump Maintenance Schedule

Storage Tank Cleaning and Inspection

Filling Line Maintenance

Emergency Shutdown Protocol