CERTIFICATE OF ANALYSIS
Certificate of Analysis
ZEEL PRODUCT
Brand: ZEELCHEM® • Specialty Chemical Manufacturer
ISO 9001:2015 | ISO 14001:2015 Certified Quality Management System
A-23, Reva Duplex, Ankhol, Waghodia Road, Vadodara, Gujarat, India. • Email: [email protected]
CERTIFICATE OF ANALYSIS
OFFICIAL QUALITY CONTROL LABORATORY TEST REPORT • B2B AUDIT READY
Product Name:PBTC 50% Phosphonate
Trade Name / Code:ZEELCHEM® 121
CAS Registry No.:37971-36-1
Grade:Industrial Water Treatment Grade
Batch / Lot Number:ZC-2026-0845
Date of Manufacture:August 2026
Expiry Date:August 2027
Inspection Standard:ISO 9001:2015 QC Spec
| S.No. | Test Parameter | Standard Specification | Observed Result | Testing Method | Status |
|---|---|---|---|---|---|
| 1 | Appearance | Clear, colorless to light yellow liquid | Passes | Visual | ✓ PASS |
| 2 | Active Content (%) | 50.0% Min | 50.8% | Titration | ✓ PASS |
| 3 | Phosphorous Acid (%) | 0.8% Max | 0.4% | IC | ✓ PASS |
| 4 | pH (1% Solution) | 1.5 - 2.0 | 1.8 | pH Meter | ✓ PASS |
| 5 | Density (g/cm³ @ 20°C) | 1.27 - 1.30 | 1.28 | Hydrometer | ✓ PASS |
✓ Official Quality Release & Compliance Certification:
This Certificate of Analysis verifies that the sampled batch of PBTC 50% Phosphonate (ZEELCHEM® 121) has been thoroughly tested by ZEEL PRODUCT Quality Control Division. All analytical parameters comply 100% with prescribed standard specifications. THE MATERIAL IS APPROVED AND RELEASED FOR DISPATCH.
This Certificate of Analysis verifies that the sampled batch of PBTC 50% Phosphonate (ZEELCHEM® 121) has been thoroughly tested by ZEEL PRODUCT Quality Control Division. All analytical parameters comply 100% with prescribed standard specifications. THE MATERIAL IS APPROVED AND RELEASED FOR DISPATCH.
QC Chemist
Tested & Analyzed By
Quality Control Lab Division
QA Manager
Authorized Signatory
Quality Assurance Manager • ISO 9001:2015