Tenn. Comp. R. & Regs. 0400-20-12-.12

Current through June 26, 2024

Section 0400-20-12-.12 - DESIGN AND PERFORMANCE CRITERIA FOR SEALED SOURCES

(1) A licensee may use a sealed source in well logging if the sealed source:

(a) Is doubly encapsulated;

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

(c) Meets the requirements in paragraphs (2), (3) and (4) of this rule.

(2) For a sealed source manufactured on or before July 14, 1989, a licensee may use the sealed source, for use in well logging applications if it meets the requirements of USASI N5.10-1968, "Classification of Sealed Radioactive Sources," or the requirements in paragraph (3) or (4) of this rule.

(3) For a sealed source manufactured after July 14, 1989, a licensee may use the sealed source, for use in well logging applications if it meets the oil-well logging requirements of ANSI/HPS N43.6-1997, "Sealed Radioactive Sources - Classification."

(4) For a sealed source manufactured after July 14, 1989, a licensee may use the sealed source, for use in well logging applications, if:

(a) The sealed source's prototype has been tested and found to maintain its integrity after each of the following tests:

1. Temperature.

The test source must be held at - 40º C for 20 minutes, 600º C for 1 hour, and then be subject to a thermal shock test with a temperature drop from 600º C to 20º C within 15 seconds.

2. Impact test.

A 5 kg steel hammer, 2.5 cm in diameter, must be dropped from a height of 1 m onto the test source.

3. Vibration.

The test source must be subject to a vibration from 25 Hz to 500 Hz at 5 g amplitude for 30 minutes.

4. Puncture test.

A 1 gram hammer and pin, 0.3 cm pin diameter must be dropped from a height of 1 m onto the test source.

5. Pressure test.

The test source must be subjected to an external pressure of 24,600 pounds per square inch absolute (1.695 x 10⁷ pascals).

(5) The requirements in paragraphs (1), (2), (3) and (4) of this rule do not apply to sealed sources that contain licensed material in gaseous form.

(6) The requirements in paragraph (1), (2), (3) and (4) of this rule do not apply to energy compensation sources (ECS). ECSs shall be registered with the Nuclear Regulatory Commission under 10 CFR 32.210 or with an Agreement State.

Tenn. Comp. R. & Regs. 0400-20-12-.12

Original rule filed February 22, 2012; effective May 22, 2012.

Authority: T.C.A. §§ 68-202-201 et seq., and 4-5-201 et seq.