O-A-445C
6.5 Certification. When specified by the procurement agency, certification of the analysis by the manufacturer of the anhydrous ammonia may be accepted in lieu of an analysis of lot inspection, provided the ammonia is transferred directly from the manufacturer's tested container to acceptable government-furnished containers (see 4.1.1).
6.6 Filling density. Anhydrous ammonia containers shall be filled to a density not greater than
54 percent in weight ratio to the weight of the container's water capacity.
6.7 Maintenance of government-furnished containers. Purchasers should specify the extent to which government-furnished containers that require maintenance should be processed by the gas supplier.
6.7.1 Gas supplier. The gas supplier should furnish at no additional cost, all services that are required at each filling of a container to comply with applicable regulations and normal good practice. Such services would include, but not be limited to, all inspection, testing, evacuation, and handling services required for the gas supplied.
6.7.2 Allowable fees. A schedule of allowable fees should be specified by the purchaser for the gas supplier's performance of services such as the replacement of valves, valve parts, and cylinder caps, hydrostatic testing, cleaning, painting, color coding, marking, and handling of unserviceable containers as required. All materials and components for these services should be furnished by the gas supplier.
6.8 Unit of purchase. Anhydrous ammonia should be purchased by weight.
6.9 Subject term (key word) listing. anhydrous
compressed coolant cylinder missiles nitriding refrigeration
6.10 Changes from previous issue. Asterisks are not used in this revision to identify changes with respect to the previous issue due to the extent of the changes.
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