ZHONGTAI SG-5 PVC Resin with K Value 67, Low Residual Vinyl Chloride 1 mg/kg, and High Thermal Whiteness 85%

ZHONGTAI SG-5 PVC Resin - Batch Quality & Technical Report

1. Executive Summary

The supplied document identifies the material as PVC Resin, Grade SG-5, with a production date of 01 April 2022 and inspection date of 05 April 2022. The listed execution standards are GB/T 5761-2006 and GB/T 4803-94.

All ten listed inspection items received a PASS judgement. The tested batch recorded K value 67, viscosity number 113 ml/g, impurity particles 16 per 900 cm², apparent density 0.54 g/ml, volatile matter and moisture 0.10%, residual vinyl chloride content 1 mg/kg, thermal whiteness 85%, and plasticizer absorbency 22%.

This report preserves the batch-specific distinction between the stated index value and the actual test result, and expands the source into a technical/customer-facing format. It does not invent production-process, packaging, application or mechanical-property data that are absent from the supplied document.

2. Product & Batch Identification

3. Batch Inspection Results

Source-transcription note: the viscosity-number index is printed in the source as '118-107'. This report reproduces that wording rather than silently reversing the range. The batch result of 113 is marked PASS in the original document.

4. Compliance Margin Analysis

5. Technical Performance Interpretation

K value and viscosity number: These are core resin-characterization indicators in the supplied batch document. The measured K value of 67 is centered within the stated 66-68 range, while viscosity number 113 is accepted as PASS by the source.

Cleanliness: Impurity particles of 16/900 cm² and grain count of 19/400 cm² are both below their stated maximum limits, providing batch-specific indicators of resin cleanliness.

Apparent density: The measured 0.54 g/ml exceeds the stated minimum of 0.45 g/ml. Apparent density can be relevant to powder handling, feeding and volumetric calculations, but the source does not provide detailed handling recommendations.

Sieve characteristics: The batch reports 0.4% at the 0.250 mm sieve criterion and 97% at the 0.063 mm criterion, both marked PASS. These results provide particle/agglomerate quality-control information under the source's test basis.

Volatile matter and moisture: The measured 0.10% is substantially below the stated maximum of 0.4%, indicating good compliance for this batch.

Residual vinyl chloride: The batch result is 1 mg/kg against a maximum of 10 mg/kg. Regulatory suitability for a specific finished product or market should still be assessed separately.

Thermal whiteness: The batch achieved 85% after the stated 160°C/10 min condition, exceeding the minimum 75%. This is a defined batch color/thermal indicator, not a complete long-term thermal-stability assessment.

Plasticizer absorbency: The result of 22% exceeds the minimum 17% and provides a useful batch-specific resin absorption characteristic.

6. Potential Application Relevance

The supplied document does not list specific applications. The following items are therefore general technical evaluation contexts for SG-5 PVC resin rather than manufacturer-certified end-use recommendations.

7. Quality Control & Incoming Inspection Recommendations

8. Commercial & Technical Evaluation Summary

9. Source Conclusion & Sign-off

The source states: 'The result of inspection proves that the quality of production is in conformity with the superior class request of above standard.' All individual rows in the supplied table are marked PASS.

The document identifies the sign-off roles as Supervisor: Xiaolin Ji; Re-check by: Hui Xu; Analyst: Yunli Song, and includes an authorized-signature stamp for Zhong Tai International Development (HK) Limited.

10. Storage, Handling & Safety

The supplied one-page document does not provide packaging, storage, shelf-life or detailed safety instructions. Users should obtain the current supplier SDS and commercial product documentation before handling or purchasing the resin.

General powder-resin practice includes maintaining dry, clean storage, preventing contamination, minimizing unnecessary dust generation and preserving lot traceability. These are general technical considerations and are not source-stated SG-5 requirements.

11. Limitations of the Supplied Data

The supplied document is primarily a batch inspection / technical data certificate rather than a comprehensive application TDS. It does not provide manufacturing-process details, polymerization method, particle-size distribution, fusion behavior, mechanical properties, detailed processing guidance, packaging, shelf life or specific end-use recommendations.

Accordingly, this report does not assign unsupported numerical values or manufacturer claims to those missing areas. Final commercial qualification should be based on current supplier documentation and application trials.

12. Conclusion

The supplied SG-5 batch data show full PASS status across all listed inspection items. The batch K value is 67, apparent density 0.54 g/ml, volatile matter/moisture 0.10%, residual vinyl chloride 1 mg/kg, thermal whiteness 85%, and plasticizer absorbency 22%.

From a quality-control perspective, the batch demonstrates compliance with every source-listed index criterion. For customer approval, these batch results should be supplemented with current product TDS/SDS documentation and trials in the intended PVC formulation and processing route.