Comprehensive Overview

Commercial Reverse Osmosis (RO) plants, demineralization (DM) plants, and water softeners depend on accurate raw water analysis to prevent membrane scaling, fouling, and premature media exhaustion. We test raw feed water and RO permeate/reject water to evaluate Silt Density Index (SDI), silica content, rejection efficiency, and post-RO remineralization.

Applicable Regulatory Standards & Testing Protocols

✓ ASTM D4189 (Standard Test Method for Silt Density Index SDI) ✓ IS 10500 Purified Water Criteria ✓ Manufacturer RO Feedwater Specifications

Analyzed Parameters & Test Methods

Silt Density Index (SDI 15-minute test)

Feedwater & Permeate Total Dissolved Solids (TDS in mg/L)

RO Membrane Salt Rejection Efficiency (%)

Reactive & Total Silica (SiO2 mg/L)

Total Hardness, Calcium, Magnesium & Langelier Saturation Index (LSI)

Free Residual Chlorine, Turbidity & Iron Content

Sample Intake & Turnaround Protocol

2 Liters Raw Water + 2 Liters RO Product Water | Turnaround Time: 2 - 3 Working Days

Key Scope & Execution Deliverables

Langelier Saturation Index (LSI) scaling risk calculation

RO plant rejection efficiency and recovery percentage assessment

Pre-treatment antiscalant and resin dosing recommendation

Post-RO mineral rebalancing and pH correction advice

Key Business & Regulatory Benefits

Extends expensive RO membrane lifespan and prevents chemical scaling

Ensures purified drinking water retains essential healthy minerals

Required Document Checklist

RO Plant Flow Rate Capacity (LPH) & Membrane Type
Chemical Dosing Scheme Details