Netprotect® PE uses a stringent quality control system
Raw materials
Deltamethrin:
Each batch of Deltamethrin is supplied with a Certificate of quality (CoQ). This CoQ must contain the following data and the product must comply with the respective specifications:
· Deltamethrin content > 985 g/kg
· Deltamethrin R-isomer content < 10 g/kg
· Acid Chloride content < 2 g/kg
· Acid and Anhydride content < 10 g/kg
· Melting point > 98 °C
· Optical rotation = 57 ±1,5°
One sample is taken upon arrival at the master batch (MB) manufacturer and sent for chemical analysis to confirm the data in the certificate of analysis. The following is checked:
· Deltamethrin content > 985 g/kg
The Deltamethrin consignment is assigned a batch number. This batch number is transferred to the individual bags, enabling traceability throughout the production process.
PE polymer:
The PE polymer is supplied by reliable and long term suppliers. The PE polymer is checked by the supplier and data can be extracted from their QC system.
Auxiliary chemicals:
All chemicals are supplied with a certificate of quality (CoQ) from the manufacturer.
During production
See Quality Matrix
Traceability
Master batch (MB):
Each batch of Deltamethrin containing MB receives a batch code consisting of a two-digit running number and a single-digit year indicator:
One sample for each one metric ton (MT)of MB is sent for chemical analysis and the active ingredient content determined. A logbook is kept establishing which batch of Deltamethrin technical grade raw material was used for the batch. If a new batch of Deltamethrin technical grade is put in use during production, the batch number of the MB is changed to the next higher running number, i.e., from 014 to 024.
Net material
The batch code of the Deltamethrin containing MB follows the yarn from extrusion through production. When the yarn is knitted and, finally, the net material is cut and sewn into finished nets, the MB code is used as the basis for the production code:
The production code is printed on the care label of each net. With this code, all QC data for this particular production batch can be traced.
Documentation
With each order a Quality Control Certificate (QCC) is supplied. The QCC contains all relevant quality control data:
Chemical analysis data establishing the content of Deltamethrin throughout the batch
Average and standard deviation on remaining QC data from this particular batch:
Yarn thickness
Mesh size
Fabric weight
Bursting strength
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