IEC 60068-2-10:2005

FOREWORD
1 Scope
2 Normative references
3 General description
4 Health hazards to operators
5 Description of the test variants
   5.1 Test variant 1
   5.2 Test variant 2
6 Reagents and materials
   6.1 Cultures or spores - Supply and conditions
   6.2 Preparation of spore suspension
   6.3 Control strips
7 Description of test apparatus
   7.1 Inoculation by spraying
   7.2 Incubation of small specimens
   7.3 Incubation of large specimens
8 Severities
9 Initial examinations
10 Pre-conditioning
   10.1 Cleaning
   10.2 Damp heat storage
11 Conditioning
   11.1 Application
   11.2 Inoculation
   11.3 Incubation
12 Final examinations
   12.1 Visual examination
   12.2 Effect of growth
   12.3 Extent of growth
13 Information to be given in the relevant specification
14 Information to be given in the test report as a minimum
Annex A (informative) - Danger to personnel
Annex B (normative) - Inoculation methods
Annex C (informative) - Recommended safety precautions
Annex D (informative) - Decontamination procedures
Annex E (informative) - Information on the test fungi
Annex F (informative) - Guidance

IEC 60068-2-10:2005 Provides a test method for determining the extent to which electrotechnical products support mould growth and how any mould growth may affect the performance and other relevant properties of the product. Since mould growth conditions include high relative humidity, the test is applicable to electrotechnical products intended for transportation, storage and use under humid conditions over a period of some days at least. The main changes with respect to the previous edition are listed below:
- Two test fungi replaced by two others
- Concentration of the spores defined for each test fungus
- Spores suspension in mineral salt solution additionally introduced
- Pre-conditioning of the specimens by damp heat storage prescribed
- Supersonic aerosolization of the spores suspension as the preferred inoculation method introduced
- Duration of incubation reduced from 84 days to 56 days
- Extent of mould growth grade 2 split into grade 2a and grade 2b
- Detailed information on methods of inoculation given in Annex B
- Annex E: flow-chart deleted.