Leakage and contamination tests

Stringent tests for leakage are an essential feature of radioactive sources production. They are based on ISO9978-1992. Some standard methods used for testing radiation sources are listed below.

All leakage tests for Eckert & Ziegler Nuclitec (EZN) sources are performed according to ISO9978-1992.

Wipe test I (A)

Immersion test II (L)

Bubble test III (D)

Emanation test IV

The source is wiped with a swab or tissue, moistened with ethanol or water; the activity removed is measured.

The source is immersed in a suitable liquid at 50°C for 4 hours and the activity removed is measured.

The source is immersed in water or a suitable liquid and the pressure in the vessel reduced to 25-15 kPa. No bubbles must be observed. (This test conforms to ISO9978 exept that for sources, the 100mm3 free volume requirement is not met).

The source is placed in a gas tight enclosure with a suitable absorber and is left there for at least 3h. The source is considered leak tight when not more than 200 Bq Radon related to a collection time of 12h can be measured afterwards.

Limit 200Bq

Limit 200Bq

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USA / North and South America / Australia / China & Far East Asia

Eckert & Ziegler Analytics, Inc.
1380 Seaboard Industrial Blvd.
Atlanta, GA 30318 (USA)
Phone: +1 404 352 8677
Fax: +1 404 352 2837
E-Mail: isotrakusa@dont-want-spam.ezag.com

Europe / Africa / Middle East Asia / Japan

Eckert & Ziegler Nuclitec GmbH
Gieselweg 1
38110 Braunschweig, Germany
Phone: +49 5307 9320
Fax: +49 5307 932 272
E-Mail: infoisotrak@dont-want-spam.ezag.com



Eckert & Ziegler Isotope Products France
12 avenue des Tropiques
Hightec Sud - bâtiment B
91955 Courtaboeuf cedex
Phone: +33 (0)1 64 86 22 22
Fax: +33 (0)1 69 86 10 65
E-Mail: rudy.operon@dont-want-spam.ezag.com