ML19220C925

Forwards Questions & Answers Re Containment Liner & Decontamination,Stainless Steel Covering Over Insulation & Reactor Coolants Prepared 790405 for Use by R Minogue

ML19220C925
Person / Time
Site:	Crane
Issue date:	04/10/1979
From:	Henry J NRC OFFICE OF STANDARDS DEVELOPMENT
To:	Eiss A NRC OFFICE OF STANDARDS DEVELOPMENT
References
NUDOCS 7905160068
Download: ML19220C925 (2)

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s. 1. Is there a coating on containment liner to aid decontamin tion? Containment coating is pl.enoline 368 made by Carboline Co., St. Louis, "o. 5 mils thick. About 480 gallons applied over a cinc-based priner on the steel liner. 2. What is concentration in reactor coolant? Reactor coolant Bettis Analysis 3/30/79 Element Coolant Coolant Core Concn, uCi/cc_ Inventrory, Ci Inventory, Ci 4 7 I-131 1.3 x 10 4.4 x 10 6.8 x 10 I-133 6.5 x 103 2.2 x 106 2.7 x 107 I 4 5 Cs-134 6.3 x 10 2.1 x 10 3.7 x 10 2 4 7.6 x 10! Cs-136 1.8 x 10 6.1 x 10 Cs-137 2.8 x 10 9.5 x 10$ 8.3x10y 2 Sr-89/90 5.3 x 10 1.8 x 10 6. x 10 2 4 6 Ru-lC6 2.0 x 10 6.8 x 10 3.5 x 10 2 4 3 Ba-140 2.0 x 10 6.8 x 10 1.1 x 10 2 4 7 Te-132 2.0 x 10 6.8 x 10 9. x 10 3. Are there stainless steel coverings over insultation? Reflective covering of thin layers of stainless steel with air gaps between layers. Straps and locking clips hold covering in piace. 4. Any idea of mix of fission products. Table in 2 above gives mix in coolant - I-131, I-133, Cs-134, Cs-136, Cs-137, Sr-89/90, Ru-lC6, Ba-140, Te-132. Containment gas contains I-131 and Xe-133. .. -l T 4 M b 118 120 _.}}