Quality Control & CertificationsISO 9001 · ISO 14001 · ISO 22000 · FSSAI
At ZEEL PRODUCT, quality is built into manufacturing, not added at the end. Every ZEELCHEM™ batch is tested from raw material inspection to final packaging, using ASTM and IS standard methods and calibrated instruments, with full traceability and reference samples kept for 24 months.
A Multi-Tier Testing Protocol
Every batch made at our Vadodara facility passes the same protocol: raw material inspection, in-process checks, final QC release and documented dispatch.
- 1
Raw Material Inspection
Monomers and inputs checked and traced.
- 2
Controlled Synthesis
Standardised, documented manufacturing.
- 3
Lab Testing
ASTM / IS methods on calibrated instruments.
- 4
Release & COA
Results certified against specification.
- 5
Sample Retention
Reference sample kept for 24 months.
Laboratory Tests & Instruments
Active Content & Assay
Titrimetric, potentiometric and spectrophotometric measurement of active purity.
Digital pH & Conductivity
Microprocessor probes with automatic temperature compensation (ATC).
Rotational Viscosity
Brookfield viscometers check molecular weight consistency and rheology.
Specific Gravity & Density
Hydrometers and pycnometers at a standard 20 °C or 25 °C reference.
Trace Heavy Metals & Iron
Colorimetric assays; Fe below 10–20 ppm for high-purity phosphonates.
Gravimetric Solid Content
High-precision oven gravimetric analysis of non-volatile solids.
Defoamer Sparge Knockdown
Sparge-cylinder foam rupture test with a target under 3 seconds.
Static Scale Inhibition
Threshold tests for CaCO₃ and Ca₃(PO₄)₂ precipitation prevention.
Certified & Licensed
FSSAI Licence No. 10725024000183, issued by the Food Safety and Standards Authority of India
Shipped With Every Dispatch
Certificate of Analysis
Batch-specific results against specification limits, certified by our Chief Quality Chemist.
Technical Data Sheet
Physical and chemical properties, dosage ranges, application guidelines and packaging options.
Safety Data Sheet
16-section GHS-compliant hazard, handling, PPE, storage and first-aid information.
Request a Sample, COA or Test Report
Our QA department sends samples, certificates of analysis and specific technical test reports on request.
Frequently Asked Questions
How does ZEEL PRODUCT ensure batch quality?
Every batch is tested from raw material to packaging using ASTM and IS standard methods on calibrated instruments, with full traceability and reference samples kept for 24 months.
Which tests are done on water treatment chemicals?
Active content assay, pH and conductivity, viscosity, specific gravity, trace iron and heavy metals, solid content, defoamer knockdown and static scale-inhibition tests.
What documents come with each order?
A batch Certificate of Analysis, the Technical Data Sheet and a 16-section GHS Safety Data Sheet.