Glossary entry

Dutch term or phrase:

blanko / blankopepaling

English translation:

blank/blank test

Added to glossary by Alexander Schleber (X)
May 5, 2005 06:37
19 yrs ago
Dutch term

blanko / blankopepaling

Dutch to English Science Chemistry; Chem Sci/Eng Titration
" Dispenseer van de 177.5 ppm oplossing 1.0 ml in een memotitrator bekertje, voeg DM-water toe tot +/- 50ml en 1 ml gec. HNO3. Vervolgens voegen we 50 ml aceton toe. Plaats het bekertje in de titratiestand en start methode 622. Blanco moet +/- 0.005 meq. zijn."

Who can explain to me what is meant by "blanko" here.

TIA

Discussion

Deborah do Carmo May 5, 2005:
Hi, lots of google hits as "blancobepaling" - i.e. retains the "c"

Proposed translations

+3
2 hrs
Selected

blank/blank test

It is related to ensuring that testing is 'clean'. Part of a laboratory's Quality Assurance procedure.

See website:
http://www.radiationsafetyacademy.com/labQA.html
"Blank
A blank sample is the most basic of QC samples. It is essentially a sample of the same geometry, volume, media type, etc. of the unknown samples but has no activity. Blank samples obtain 2 values. First, it allows a minimum detectable activity (MDA) for each sample to be calculated. Background values will vary and are a function of the constituents of the sample. For example, a sample using a 7 mL glass container would have less background than a 20 mL glass container due to the amount of K-40 found in glass. Secondly, blank samples allow the laboratory to ensure their equipment is not contaminated which would yield Type I errors or errors which result in positive counts but are not really radioactive. Blank QC samples are utilized for every batch of samples and come free of charge. If you have samples which are out of the ordinary, please send a similar sample which is known to be free of radioactivity and we will use that as the batch blank."

For 'blankobepaling' see:
http://europa.eu.int/eur-lex/lex/LexUriServ/LexUriServ.do?ur...
and in English ('blank test'):
http://europa.eu.int/eur-lex/lex/LexUriServ/LexUriServ.do?ur...
Peer comment(s):

agree Deborah do Carmo : have to agree..;-))
2 mins
Funny how we both answered at the same time from a different angle :-)
agree Jack den Haan
2 mins
Thanks, Jack!
agree Fred ten Berge
7 days
Something went wrong...
4 KudoZ points awarded for this answer. Comment: "Thanks to both of you. As Debs has suggested, the longer explanation gets the points. Regards, Alexander"
+3
2 hrs

blank / blank test

File Format: PDF/Adobe Acrobat - View as HTML
... Standard Test Methods for Determining the Water. Content of Freshly Mixed Concrete
... A blank test is required. The blank test intermixes a given ...
www.wes.army.mil/SL/MTC/handbook/crd_c82.pdf - Similar pages

[PDF] Development of standard laboratory based test to measure compost ...
File Format: PDF/Adobe Acrobat - View as HTML
... standard test method by inter-laboratory tests. EN 12579:2000 ... An apparatus
and reagent blank test shall be carried out in parallel with the ...
www.wrap.org.uk/document.rm?id=645 - Similar pages

53.58 Operational field precision and blank test.
... In the case of equivalent methods, this test may be combined and conducted
... (1) Field precision is defined as the standard deviation or relative ...
www.setonresourcecenter.com/cfr/40CFR/P53_047.HTM - 12k - Cached - Similar pages

WASHINGTON STATE REGISTER
... state toxicologist is directed to approve satisfactory techniques or methods,
... Blank test with a result of .000. Step 3. Internal standard verified. ...
www1.leg.wa.gov/documents/wsr/2004/16/04-16-062.htm - 27k - Cached - Similar pages



--------------------------------------------------
Note added at 2 hrs 12 mins (2005-05-05 08:49:38 GMT)
--------------------------------------------------

Definition:
A trial or experiment where all the operations and treatments are the same except that samples of different sizes are used to evaluate heterogeneity.
Peer comment(s):

agree Jack den Haan
1 min
thanks Jack
agree Marijke Singer : I have to agree too!
6 mins
exact timing and after a time had elapsed - unbelievable - yours is more explanatory though, so should get the points
agree Fred ten Berge
7 days
Something went wrong...
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