3701:1-46-41 Ice detection devices containing strontium-90: quality assurance; prohibition of transfer.

(A) Each person licensed under rule 3701:1-46-40 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 strontium-90.

(B) Each person licensed under rule 3701:1-46-40 of the Administrative Code shall test each device for possible loss of strontium-90 or for contamination by wiping with filter paper an area of at least one hundred square centimeters on the outside surface of the device, or by wiping the entire surface area if it is less than one hundred square centimeters. The detection on the filter paper of more than two thousand two hundred disintegrations per minute of radioactive material per one hundred square centimeters of surface wiped shall be cause for rejection of the tested device.

(C) Each person licensed under rule 3701:1-46-40 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 per cent defective of five per cent 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 physical contact between the water and the strontium-90. 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 that leaks, as evidenced by physical contact between the water and the strontium-90, shall be considered as a defective unit.

(2) The immersion test water from the preceding test in paragraph (C)(1) of this rule shall be measured for radioactive material. If the amount of radioactive material in the immersion test water is greater than 0.1 per cent of the original amount of strontium-90 in any device, the device shall be considered as a defective unit.

(D) 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 (C) 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 per cent of the original quantity of strontium-90 in any twenty-four hour period; and

(2) The operating characteristic curve or confidence interval estimate for the alternative procedures provides a lot tolerance per cent defective of five per cent at the consumer's risk of 0.1.

(E) No person licensed under rule 3701:1-46-40 of the Administrative Code shall transfer to persons generally licensed under rule 3701:1-46-10 of the Administrative Code:

(1) Any 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 then met the tests set out in paragraph (C) 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 (D) 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 (C) of this rule.

R.C. 119.032 review dates: 09/18/2012 and 09/15/2017
Promulgated Under: 119.03
Statutory Authority: 3748.04
Rule Amplifies: 3748.04
Prior Effective Dates: 10/20/2002, 1/20/08