According to the European Standard EN 15964: 2011, which was adopted as a national standard by the designation DSTU EN 15964:2014 «Breath alcohol test devices other than single use devices. Requirements and test methods» (EN 15964:2011, IDT) by the order of the Ministry of Economic Development and Trade No. 1494 dated December 30, 2014, gas analyzers for monitoring the alcohol content of exhaled air Dräger Alcotest® in Ukraine are used according to the rules of the specified standard from 01.01.2016.
We recommend paying attention to some important points.
According to the DSTU EN 15964:2014, devices for testing alcohol in exhaled air use mouthpieces for breathing samples.
Point 3.11 of the Standard states that the mouthpiece is a hygienically packaged part intended for single use, which is attached to the device for detecting alcohol in the exhaled air and through which the person In accordance with the provisions of point 5.2 of the Standard, the device must exclude the possibility of inhalation of contaminated air from previous users. The mouthpiece is intended for single use only. It must be possible to take these mouthpieces without touching the part that has contact with the lips of the person being examined. The mouthpieces should be in an individual sealed package that can be easily opened.
Failure to comply with the above requirements may lead to both epidemiological risks and the risk of improper operation of measuring instruments (gas analyzers) and actual biased tests and, as a result, violate the constitutional rights and interests of the person.
Dräger Alcotest®3000, Dräger Alcotest®5510, Dräger Alcotest®5820, Dräger Alcotest®6510,Dräger Alcotest®6810, Dräger Alcotest®6820, Dräger Alcotest®7510 OIML gas analyzers should use the original Dräger Alcotest® Mouthpieces Standard mouthpieces that have a corresponding quality certificate and are officially legally supplied from the manufacturer through an authorized representative.
The use of second-hand mouthpieces and analogues or substitutes for original mouthpieces that did not undergo an official metrological and medical certification process together with Dräger Alcotest® as the only common measurement system “mouthpiece-device”, can lead to systematic errors and the false test result (due to various gaps in the non-standard attachment of the mouthpiece to the nipple, another flow rate and other conditions for obtaining a test sample, etc.).
Subparagraph 6.1 of EN 15964:2011 provides that the means by which a device is calibrated (grading) or regulated should only be available to authorized persons.
These standards indicate that the "Service maintenance" and "Calibration" of the Dräger Alcotest® gas analyzers are complicated and responsible technical actions that affect the quality of work and service life of the devices, and include the following procedures:
- diagnostics and control of functioning,
- testing of all components of the device and software,
- analysis of fault messages (if available) and error correction,
- repairing minor faults that do not require the replacement of elements and nodes,
- checking and adjusting (if necessary) flow sensors, temperatures in order to obtain an acceptable measurement error Dräger Alcotest®,
- preliminary verification of the accuracy of the Dräger Alcotest® measurement,
- in case of detecting significant malfunctions, acts are drawn up and proposals for repairs and their value are issued.
The "Gradation" procedure is the setting of the Dräger Sensor electrochemical sensor to obtain an acceptable measurement error of the Dräger Alcotest® devices.
The "Service maintenance" and "Grading" procedures are possible only by the authorized manufacturer, the official representative having the appropriate certificate, using:
- the special original equipment Dräger Safety AG & Co. KGaA, Germany or its analogue manufacturer-approved manufacturer,
- the necessary service documentation from Dräger Safety AG & Co. KGaA (maintenance and repair procedures, etc.),
- the licensed service software - provided by the manufacturer Dräger Safety AG & Co. KGaA under a separate agreement,
- is carried out exclusively by qualified personnel trained by the manufacturer in Germany and has the appropriate certificates from the manufacturer Dräger Safety AG & Co. KGaA.
If the "Service maintenance" and "Grading" (calibration) of the Dräger Alcotest® 6510 and Dräger Alcotest® 6810 gas analyzers are not performed on time (at least 1 time in 12 months), then due to contamination of the measuring paths (through condensation of micro particles of fat from the vapor of human exhalation, the ingress of micro particles of dust, etc.) and the drift of parameters (including short-term and long-term drifts due to temperature difference, humidity, changes in sensitivity /aging time/ electrochemical sensor, etc.) test results can exceeding the permissible error (the data will be incorrect) with the probability level and within the limits, depending on such factors as: state, age and wear of the sensor, storage conditions of the device and conditions of measurement (temperature, humidity), intensity of use of the device, etc.
In accordance with the international practice of the manufacturer, each device is completed with an individual service (service-guarantee) book, in which according to the results of the operations "Servicing maintenance", "Grading", "Verification" records are made (marks, for example, personal signature, stamp, stamp ) in the service (service-guarantee) book of devices.