Appendix I- Qualification of New Test Methods and Equipment

DOE-STD-3025-99

APPENDIX 1- QUALIFICATION OF NEW TEST METHODS AND EQUIPMENT

1.1

SPECIFICATIONS

Only test equipment and measurement techniques approved by the DOE shall be used for quality

assurance testing of HEPA filters at the FTFs. DOE approval shall be contingent on satisfactory

completion of the following specifications.

1.2

PARTICLE SIZE

1.2.1

Particle Size Range

The new instrument and/or test technique shall be capable of determining aerosol

penetration in the particle diameter ranged from 0.1 micrometers to greater than 0.3

micrometers in discrete measurable particle size ranges no larger than 0.05 Fm.

Particle size measurements shall have a precision and accuracy of 10%.

1.3

RESISTANCE

1.3.1

Measurement Capability

The new instrument and/or test technique shall be capable of measuring airflow

resistance within an accuracy and precision of 5% of a filter under test at its nominal

airflow rating.

1.3.2

Pressure and temperature measuring instruments, orifice plates, mass-flow meters and

other instruments critical to performance of the proposed test technique shall be

calibrated by the use of standards traceable to recognizable NIST standards.

1.4

PENETRATION

1.4.1

Penetration Measurement

The test method shall be capable of determining penetration up to 0.03% +0.005% in

the particle diameter range from 0.1 Fm to 0.2 Fm. Aerosol dilution will be permitted

only after demonstration that the overall test efficiency and reliability have not been

adversely affected, nor have the dilution techniques adversely affected particle size or

concentration.