(4) Construction material in addition to that under A, 2, a.

Casing material_

Dimensions_

Weight..

(5) Weight of SSNM per assembly before irriadiation :

Any changes or modifications to the assembly or unit to be shipped must be listed in detail giving weight, compositional and dimensional data. In addition, the drawings or illustrations provided per Section 1 above should indicate these changes or modifications.

3. Identification. Each separately removable unit in the shipping cask must be identified by a durable metal tag or label, or by embossing. The unit (i.e., assembly, loose rods, fuel tube, etc.) must be identified in the shipping invoice giving the type of fuel as described in this Appendix. Units to be identified are: (element, subassembly, assembly, etc.)

4. Post-Irradiation Data.—SSNM Content After Irradiation. The average and maximum SSNM content is to be specified in grams per assembly. The best available value should be given and the probable uncertainty stated.

1. Except as otherwise agreed, shipping containers to be used by the Commission shall be: (a) SCRUP container (Bureau of Explosives No. 622); (b) Westinghouse container (Bureau of Explosives No. 1475); (c) GE spent fuel shipping containers (Bureau of Explosives No. 1472); (d) Stanray S-1 container (Bureau of Explosives No. 1400).

2. Three complete sets of design or “as built” drawings for each container to be used shall be submitted to the Contractor for approval with the following information:

a. Details on fuel loading arrangement in container.

b. Special tools or equipment required to unload fuel from container and open containers.

c. Method of attachment of container to the shipping vehicle proposed for use in shipment.

3. The contractor shall accommodate only the type of containers specified in Section 1 of this Appendix B. If an alternate container design is required by the Commission at a later date, it shall be the responsibility of the Commission to design such container so that it can be handled by the Contractor or to reimburse the Contractor for changes to the fuel receiving station to accommodate the alternate container design.

4. Shipment will be accepted from rail or motor carriers.

5. All containers must be approved by the Bureau of Explosives for shipment of specific materials involved.

6. All containers must meet the Interstate Commerce Commission's allowable radiation requirements.

7. The maximum radiation limits shall be not more than 200 mr/hr at the surface of the container.

8. Containers must be readily removable from the shipping vehicle. Maximum weight of a loaded container to be lifted from the vehicle is 100 tons. The Commission shall provide a set of container unloading instructions for each container which give reasonable assurance that under normal circumstances the container can be unloaded with a total exposure to personnel of 25 man-mrem. 9. Containers must have provision for free drainage of water from all external surfaces and attachments.

10. The use of cooling media other than water is not acceptable when such media can contaminate the storage water or fuel elements or cause other problems. Substitution of other cooling media for water or the use of additives such as antifreeze will be considered on an individual case basis.

11. The container must have a readily operable drain and all internal surfaces should drain freely to it. A siphon drain is preferred since a bottom drain is more susceptible to damage and can result in the loss of the cooling water. A siphon drain must be in the body of the container and not part of the cover.

12. Container design should recognize the possible use of impact wrenches in the removal of nuts and bolts. Proper consideration should, therefore, be given to the clearances necessary.

13. Containers must be top opening.

14. All inner container surfaces which are likely to be contacted by the coolant must be of stainless steel. All external surfaces must be accessible for decontamination. These external surfaces, including weldments, must be smooth, free of weld spatter, and free of nondraining crevices or pockets.

15. Units with exposed uranium or plutonium shall be carried by the Commission in container whose material and design shall have been approved by the Contractor, unless the Contractor determines such carrier is unnecessary.

16. Container design should permit withdrawal of a representative sample of the container coolant while the container is on the transport vehicle.

17. The activity limit for container cooling water is 10 beta-gamma curie/cc or 10 alpha curie/cc.

18. The internal pressure of the primary coolant system of a container shall not exceed 50 pounds per square inch guage or 50% of the design pressure, whichever is less, under normal conditions of transport. In containers designed to operate at a pressure no greater than atmospheric, an automatic pressure release system must be incorporated. Methods of control or containment of the released fluid must be provided.

19. Surface contamination shall not exceed 4000 beta-gamma disintegration per minute per 100 square centimeters nor 500 alpha disintegrations per minute per 100 square centimeters. Containers contaminated to no more than five times these levels will be decontaminated without charge as part of the chemical processing service provided by the Contractor under Article II of this contract. 20. Containers must not leak grossly.

APPENDIX C

SPECIFICATIONS FOR RECOVERED PRODUCT

A. PLUTONIUM

These product specifications apply to each product accountability tankful of product as measured in the plutonium product accountability tank.

The product shall be in the form of plutonium nitrate solution containing a minimum of 50 grams of plutonium per liter and a maximum of 250 grams of plutonium per liter. The free nitric acid molarity shall be between 2 and 10 molar.

The maximum permissible total uranium and other metal impurities shall be 5000 parts per million parts of plutonium.

The maximum permissible amount of residue insoluble in 50% nitric acid is 5000 parts per million parts of plutonium.

The maximium permissible amount of entrained organic material is 0.5% by volume of the aqueous volume in the product solution.

The maximum permissible fission product gamma plus beta activity is 50 microcuries per gram of plutonium.

Chloride and sulfate content must be low, consistent with control of corrosion and the use of technical grade chemicals.

B. URANIUM

These specifications apply to the weighted average of the contents of all containers delivered at one time.

The product shall be in the form of uranium nitrate solution. The concentration of the product solution shall be as reasonably designated by the Contracting Officer in conformance with applicable Federal and State laws and regulations, including the regulations of tne Commission, pertaining to shipments of radioactive materials.

The Usos material obtained by evaporation of the sample solution and subsequent ignition at 900° C. shall be at least 98.5% pure.

The limits for those materials which form volatile fluorides shall be as follows:

The total concentration of elements forming nonvolatible fluorides (vapor pressure of one atmosphere at or above 300° C.) shall not exceed 500 parts per million parts of total uranium. The elements in this class are: aluminum, barium, beryllium, calcium, copper, iron, lead, lithium, magnesium, manganese, nickel, potassium, silver, sodium, thorium, tin, zine, and zirconium.

The maximum permissible fission_product_gamma activity, expressed as percent of the gamma activity of aged natural uranium, is 200% for UNH containing uranium at an enrichment of 5% U-235 or less, and 300% for UNH containing uranium at an enrichment of greater than 5% U-235. This determination will be made by comparing the separated fission products from the sample with a weight of aged natural uranium equal to the weight of uranium in the sample, the comparison to be made in a high pressure ionization chamber (Carbide and Carbon Chemicals Company Drawing D-AWM-8796).

The maximum permissible fission product beta activity as percent of the beta activity of aged natural uranium is 200% for all U-235 enrichments.

The maximum permissible alpha activity from plutonium is 1500 disintegrations per minute per gram of uranium (equivalent to 10 ppb). In the event transuranic elements contribute alpha contamination to the product, said alpha disintegrations will not be counted as part of the above limit. However, it will be the responsibility of the Contractor to show that the extraneous alpha contamination is, in fact, coming from transuranic elements other than plutonium. The Contractor also will exert reasonable efforts within the capability of the Plant to reduce the extraneous transuranic alpha contamination in the product. The maximum permissible concentration of U-233 is 90 parts per million parts of U-235 and the maximum permissible concentration of U-232 is 11 parts per billion parts of U-235. Uranium product solutions exceeding these specifications shall be conclusively deemed to be uranyl (U-233) nitrate solutions; provided however that such solutions shall be accepted by the Commission as recovered product if they conform to specifications in all other respects, upon payment by the Contractor of the difference in value between such uranyl (U-233) nitrate solution and an equivalent quantity of uranium enriched in the isotope U-235 to the same percent as the combined enrichment of U-233 and U-235 in such product, less the Commission's charges for conversion of such product to uranium hexafluoride. The charges for conversion will be determined in accordance with the Commission's charges for such services as published in the Federal Register, or otherwise published, and effective as of the date of delivery of such product to the Commission, provided that the Contractor shall not be required to make such payment if the Contractor proves, by dissolver analysis, that not more than 90 parts U-233 per million parts of U-235 and/or 11 parts U-232 per billion parts of U-235 were added to the material during chemical processing in the Plant.