3701:1-46-35 Luminous safety devices for use in aircraft: quality assurance; prohibition of transfer.

 

 

 

3701:1-46-35               Luminous safety devices for use in aircraft: quality assurance; prohibition of transfer.

 

 

 

(A)    Each person licensed under rule 3701:1-46-33 of the Administrative Code shall visually inspect each device and shall reject any which has an observable physical defect that could affect containment of the tritium or promethium-147.

 

(B)  Each person licensed under rule 3701:1-46-33 of the Administrative Code shall take a random sample of the size required by the table in rule 3701:1-46-48 of the Administrative Code for lot tolerance percent defective of five percent from each inspection lot, and shall subject each unit in the sample to the following tests:

 

(1)   Each device shall be immersed in thirty inches of water for twenty-four hours and shall show no visible evidence of water entry. Absolute pressure of the air above the water shall then be reduced to one inch of mercury. Lowered pressure shall be maintained for one minute or until air bubbles cease to be given off by the water, whichever is the longer. Pressure shall then be increased to normal atmospheric pressure. Any device which leaks as evidenced by bubbles emanating from within the device, or water entering the device, shall be considered as a defective unit.

 

(2)    The immersion test water from the preceding test in paragraph (B)(1) of this rule shall be measured for tritium or promethium-147 content by an apparatus that has been calibrated to measure tritium or promethium-147, as appropriate. If more than 0.1 percentper cent of the original amount of tritium or promethium-147 in any device is found to have leaked into the immersion test water, the leaking device shall be considered as a defective unit.

 

(3)   The levels of radiation from each device containing promethium-147 shall be measured. Any device which has a radiation level in excess of five micrograysmicrogray (0.5 millirad) per hour at ten centimeters from any surface when measured through fifty milligrams per square centimeter of absorber, shall be considered as a defective unit.

 

(C)   An application for a license or for amendment of a license may include a description of procedures proposed as alternatives to those prescribed by paragraph (B) of this rule, and proposed criteria for acceptance under those procedures. The director will approve the proposed alternative procedures if the applicant demonstrates that:

 

(1)    They will consider defective any sampled device which has a leakage rate exceeding 0.1 percentper cent of the original quantity of tritium or promethium 147 in any twenty-four hour period; and

 

(2)     The  operating  characteristic  curve  or  confidence  interval  estimate  for  the

 

 

alternative procedures provides a lot tolerance percentper cent defective of five percentper cent at the consumer's risk of 0.10.

(D)   No person licensed under rule 3701:1-46-33 of the Administrative Code shall transfer to persons generally licensed under rule 3701:1-46-07 of the Administrative Code:

(1)    Any luminous safety device which has been tested and found defective under the criteria and procedures specified in this rule, unless the defective units have been repaired or reworked and have then met the tests set out in paragraph (B) of this rule; or

(2)   Any inspection lot which has been rejected as a result of the procedures in rule 3701:1-46-48 of the Administrative Code or alternative procedures in paragraph (C) of this rule, unless the defective units have been sorted and removed or have been repaired or reworked and have then met the tests set out in paragraph (B) of this rule.

Effective:   R.C. 119.032 review dates:	01/20/2008   10/12/2007 and 09/28/2012
CERTIFIED ELECTRONICALLY
Certification
01/10/2008
Date
Promulgated Under:	119.03
Statutory Authority:	3748.04
Rule Amplifies:	3748.04
Prior Effective Dates:	10/20/2002