Cellulose ether manufacturer in Shandong China| WhatsApp +8615864350397|[email protected]

Quality Assurance and Testing

Every lot is tested before it is released. Here is what is checked and what you receive with the goods.

Process

Five Stages From Enquiry To Repeat Supply

Raw material intake

Cellulose quality sets the ceiling on the finished ether

High alpha-cellulose refined cotton and wood pulp are used as the raw material for the etherification.

In-process control

Degree of substitution decides how the product performs in your system

The acetone countercurrent washing process raises the degree of substitution by 30 to 35 percent against traditional routes, with stable product indicators.

Finished goods testing

Incoming inspection needs numbers, not assurances

Our laboratory tests every lot against the customer specification: viscosity, transmittance, water content, ash and screening rate.

Third-party verification

Some buyers need an independent check before payment

We have a long-standing working relationship with SGS and can arrange third-party inspection on export lots.

Documentation

Goods held at incoming inspection are as expensive as goods that never shipped

The certificate of analysis is issued with the shipment, and HPLC or NMR data is supplied on request.

Questions

Quality Assurance and Testing Questions

How long does this take in practice?

A sample normally leaves within a few days by FEDEX, DHL or EMS. Once a grade is agreed, stock items despatch within 5 days of payment and produced items within 7 to 10 days.

Is there a minimum order quantity?

Tell us the quantity you have in mind. Discount follows volume, so we will quote both a trial quantity and a container so you can compare.

Who do we deal with day to day?

One contact handles the technical questions, the documents and the shipment, so you are not chasing three parties at clearance.

Start The Conversation

Send the requirement and we will tell you the next step, the sample and the timing.