It depends form customer’s prefferences.
Write-on panel on Agrar Sealbags are made for easy description when samples are collected.
In most cases transparent bags are preffered. But sometimes samples requires white colour packaging.
Tear-off receipts has the same serial number as bag and are confirmation of sample deposit. Receipts has write-on panel with date and signature.
Bags are dedicated to store all kind of samples and products such as grain, corn, coal.
To deposit biohazard samples you need to use special UN3373 bags. Construction of those bags ensure more leaking proof.