Nevada Administrative Code
Chapter 459 - Hazardous Materials
RADIATION CONTROL
Radiation Safety Requirements for Well Logging
Section 459.7685 - Criteria for design and performance of sealed sources

Universal Citation: NV Admin Code 459.7685

Current through December 31, 2024

1. Except as otherwise provided in subsection 2, a licensee shall not use a sealed source in well logging unless the sealed source:

(a) Is doubly encapsulated;

(b) Contains radioactive material whose chemical and physical forms are as insoluble and nondispersible as practical; and

(c) Has been tested as a prototype and found to maintain its integrity after:
(1) A temperature test in which the prototype is subjected to -40 degrees C for 20 minutes and is subjected to 600 degrees C for 1 hour and then is subjected to a thermal shock test in which the prototype is subjected to a temperature drop from 600 degrees C to 20 degrees C within 15 seconds;

(2) An impact test in which a 5 kg steel hammer measuring 2.5 cm in diameter is dropped from a height of 1 m onto the prototype;

(3) A vibration test in which the prototype is subjected to a vibration ranging from 25 Hz to 500 Hz at 5 g amplitude for 30 minutes;

(4) A puncture test in which a 1 gram hammer attached to pin measuring 0.3 cm in diameter is dropped from a height of 1 m onto the prototype; and

(5) A pressure test in which the prototype is subjected to an external pressure of 24,600 pounds per square inch absolute.

2. The requirements of subsection 1 do not apply to sealed sources that contain radioactive material in gaseous form.

Added to NAC by Bd. of Health, eff. 9-6-88

NRS 459.201

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