LION SD-400 - AlcoCal Standard Types and Units

lion alcolmeter
®
SD-400 User Handbook [v7]
23
Provided it is within certain limits, the actual value of the standard is
not critical, but it must of course be known.
NOTE: a wet bath simulator may also be used for either process:
please contact Lion for relevant information, if required.
Two types of AlcoCal
®
standard are available:
 AlcoCal
®
-M: this disposable cylinder has a six-months
shelf life and contains sufficient vapour for
approximately 50 samples. The alcohol concentration
value is stated to within +/- 10% of the true value.
 AlcoCal
®
-2AL: a high-pressure disposable cylinder
fitted with a re-useable regulator. It contains sufficient
vapour for approximately 300 samples, and is supplied
with Connector Tubes for attachment to a mouthpiece
as used with the SD-400. The stated alcohol
concentration is within +/- 3%, and is valid for
approximately thirty-four months.
Units of Alcohol Measurement
The alcohol level in AlcoCal
®
standards is normally given in units of
mg/l BrAC (ie milligrams per litre Breath Alcohol Concentration).
But if the lion alcolmeter SD-400
®
is reading in some other unit of
measurement, the AlcoCal
®
standard will still be suitable for use,
since each such standard is supplied with an Explanatory Booklet
giving information on how to convert the mg/l BrAC value of the
AlcoCal
®
to the units actually used by the instrument.