PZ HTL S.A. is pleased to announce that its calibration laboratory on the 21st of December 2016 has attained accreditation to the ISO/IEC 17025 standard by the Polish Centre of Accreditation. The Certificate confirms effectiveness of the quality management system, and also accuracy and reliability of tests within the laboratory for piston pipettes calibration.

HTL laboratory performs calibration of piston pipettes using gravimetric method, according to the EN ISO 8655-6 Standard, with calibration levels available:

Method 1.

The measuring procedure based on performance of a series of 10 measurements for 3 tested volumes (according to the instructions IQLs-03-QS to 7.1)

Method 2.

The measuring procedure based on performance of a series of 4 measurements for 3 tested volumes (IQL instructions QS-03-Section 7.2)

Calibration Certificate Sample

The range of measured volumes is presented in the table below:

Volume range
from 0,2 µl to 20 µl
from 20 µl to 50 µl
from 50 µl to 250 µl
from 250 µl to 1,000 µl
from 1,000 µl to 5,000 µl
from 5,000 µl to 10,000 µl


Step 1   Fill in the form: Calibration Order Form

Step 2   Send the completed form to:

Step 3    Please submit an approved offer to the Calibration Service

Step 4   Please send the pipettes to the address:


Daniszewska 4

03-230 Warszawa


 Step 5    The customer is obliged to report any objection regarding the quality of the services provided within 14 days from the date of receipt of the confirmation of the order by written mail to the following address: PZ HTL S.A. SERVICE, Daniszewska 4, 03-230 Warsaw or by e-mail: Otherwise, it is assumed that the service has been performed correctly, all complaints will be considered in accordance with the capabilities of the Laboratory.