1993 - 2016 realized by Adolf Kuhner AG, Birsfelden, Switzerland
for determination of the explosion characteristics of dusts
After our previous world-wide round robin tests
|CaRo93: 77 apparatuses||CaRo05: 98 apparatuses||CaRo15: 131 apparatuses||CaRo21: 125 apparatuses|
|CaRo96: 68 apparatuses||CaRo07: 77 apparatuses||CaRo17: 144 apparatuses|
|CaRo98: 63 apparatuses||CaRo09: 90 apparatuses||CaRo18: 41 apparatuses|
|CaRo00: 69 apparatuses||CaRo11: 122 apparatuses||CaRo19: 127 apparatuses|
|CaRo03: 93 apparatuses||CaRo13: 112 apparatuses||CaRo20: 41 apparatuses|
we will carry out on schedule the new calibration round robin "CaRo22".
Determination of the explosion characteristics using standard test methods:
According to international standards the 20-l-apparatus and the 1-m3-vessel for the determination of Pmax and Kmax and the apparatus for determination of the minimum ignition energy must be calibrated at regular intervals (at least every 12 months or following any significant maintenance or repair). For this purpose, an international calibration round test (calibration round robin = CaRo) has been carried out periodically since 1993.
The mean values of the explosion indices, measured by the participating laboratories, will be calculated as reference values. All apparatuses, with results lying within the given tolerance range, meet the calibration requirements and will receive a calibration-certificate from us. Based on experience with previous round robin tests, we are certain that we will be able to discover and rectify the cause of any errors with installations producing results deviating significantly from the reference values.
The test dust will be selected, homogenized, packed under nitrogen and mailed by us. All test results are continually evaluated and will be published in the internet in a protected area exclusively for CaRo22 participants. This allows you to pre-check your own test results. After expiry of the test period, a detailed overall evaluation with the calculation of the standard values and the associated tolerance band is carried out by Cesana AG. Those apparatuses which meet the calibration requirements will receive a certificate. All results will then be summarized in tabular form (anonymously) and mailed to the participants.
CaRo22 participants will get a free upgrade to software KSEP 7.1 and MIKE 3.5 / MIKE 4.0 (for MIKE 3 CAN)
Due to supply difficulties, we use the test dust from the production batch of CaRo21 for CaRo22. Your advantage: Prices remain unchanged! The fee for participation depends on the number of apparatuses:
|order no.||calibration of:||price in CHF|
|The price includes packaging, but not the delivery-, customs- and VAT charges (value added tax).|
The amount of test dust depends on the type of apparatus:
|Mailing of test dust:||starting end of April 2022|
|Deadline for receipt of test results:||end of December 2022|
|Final report of CaRo22, certificates:||January 2023|
The reports of the CaRo tests will be published here.