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Document Identification
QC-2025-12-16-TS
Quality Control Department
Testing of tinplate from Belgian supplier INDUMET Belgium, TATA STEEL for the production of drawn cans
Quality Control Lab, Industrial Zone
December 16, 2025
Željko Selenić, Srđan Prodanović, Milica Rajković, Biljana Puzović
Table 1. Incoming inspection of tinplate
| Coil Number | Sample | Temper | Dimensions | Plate Thickness | Tin Coating | Hardness (HR) |
|---|---|---|---|---|---|---|
| 091291797001 2.0/2.0 | 1500 sheets | TH 550 | 0.165x910x886 TPS | 0.165-0.166 | 2.0/2.04 2.12/2.08 |
73.5-73.0 |
QUALITY CONTROL LABORATORY | CONFIDENTIAL INDUSTRIAL REPORT | PAGE 1 OF 3
Document Identification
QC-2025-12-16-TS
Table 2. Values for Tin and Chrome Coating
| Sample Area | Free Tin (g/m²) | Alloy Tin (g/m²) | Total Tin (g/m²) | Chrome Coating (mg/m²) |
|---|---|---|---|---|
| 1. (Top) | 0.93 / 1.11 / 0.93 | 0.9 / 0.86 / 0.85 | 1.83 / 1.97 / 1.78 | 3.2 |
| 1. (Bottom) | 0.88 / 0.85 / 0.88 | 0.88 / 0.9 / 0.88 | 1.76 / 1.75 / 1.76 | 3.0 |
Table 4. Lacquering Parameters (from production record)
| Operation | Lacquer Code | Wet Coating [g/sheet] | Temperature by Zones [°C] | Speed (sh/h) |
|---|---|---|---|---|
| Pre-press preparation | Stamping (Štanc) 818964 | 17 g/sh | 185-193-190 | 5000-5300 |
| printing | ||||
| Protective lacquering | Silver 815766 | 12 g/sh | 155-163-160 | 5000-5300 |
| Internal lacquering | Alu lacquer 816123 | 10 g/sh | 195-203-200 | 5000-5300 |
| Internal lacquering | Alu lacquer 816123 | 10 g/sh | 195-203-200 | 5000-5300 |
QUALITY CONTROL LABORATORY | CONFIDENTIAL INDUSTRIAL REPORT | PAGE 2 OF 3
Document Identification
QC-2025-12-16-TS
Figure 1. Adhesion Control Evidence
Figure 2. Hydrolysis test result
Prepared by:
Date of Completion:
Authorized Seal & Signature:
Quality Manager Office
QUALITY CONTROL LABORATORY | CONFIDENTIAL INDUSTRIAL REPORT | PAGE 3 OF 3