Ascent Petrochem Holdings Co., Limited
Customer Service
Customer Service

Customer Service

Quality Control

Quality Control

We have established a comprehensive quality control mechanism to strictly verify the quality inspection documents for each batch of products.

Ascent Petrochem Holdings 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 & Standards

Chromatographic Analysis

HPLC and GC-MS analysis for purity, impurity profiling, and molecular identification per USP and EP standards.

Wet Chemistry

Classical titration, gravimetric, and colorimetric methods for assay determination and limit testing.

Physical Testing

Comprehensive physical property measurement including viscosity, density, refractive index, and particle size distribution.

Stability Studies

Long-term and accelerated stability testing per ICH guidelines ensuring product quality throughout shelf life.

Commitment

Quality Without Compromise

We closely monitor all standards and regulations in the product testing, storage, and packaging processes.