Anhui Liwei Chemical Co.,Limited

Service

Quality Control

Quality Control

As a professional manufacturer of Glass Microspheres and with years of exportation experience, we are fully knowledgeable of the product property and can handle the product delivery skillfully and smoothly.

Aiming at providing our customers with products of the most competitive price as well as the best quality, our whole team work very hard, trying every effort to lower our cost and improve our quality. After years of product research, we may not provide the best price, but we do achieve the best quality.

Anhui Liwei Chemical Co.,Limited
Process

Three-Stage Quality System

01

Incoming Inspection

Every raw material batch tested against specifications before entering production. Certificate of Analysis verified for all suppliers.

02

In-Process Monitoring

Real-time process parameter monitoring with DCS systems. Automated sampling and testing at critical control points throughout production.

03

Final Release

Comprehensive end-product testing against international standards. Batch release only after all specifications are confirmed and documented.

Methods

Testing Methods

HPLC Analysis

High-performance liquid chromatography for purity and impurity profiling.

Purity

GC-MS Spectrometry

Gas chromatography-mass spectrometry for volatile compound identification.

Volatiles

NMR Spectroscopy

Nuclear magnetic resonance for molecular structure verification.

Structure

ICP-MS Analysis

Inductively coupled plasma mass spectrometry for trace metal detection.

Metals

Titration Methods

Automated titration for concentration and acid-base value determination.

Concentration

Stability Testing

Accelerated and long-term stability studies under controlled conditions.

Stability
Metrics

Quality Performance

100%
Batch Release
Every batch released only after full specification compliance.
99.5%+
Test Accuracy
Analytical accuracy exceeding international standards.
24/7
Real-Time Monitoring
Continuous process monitoring across all production lines.

For some customers who need third party inspection such as SGS to do customs clearance or to confirm product quality, we are warmly welcome and willing to cooperate with you for every step of the inspection.