A-A-54070
15 October 1990
COMMERCIAL ITEM DESCRIPTION
MIXING TIPS, DENTAL IMPRESSION, SYRINGE,
Disposable, 48s
The General Services Administration has authorized the use of this Commercial Item Description.
This commercial item description covers disposable dental impression syringe mixing tips suitable for use in mixing and extruding vinyl polysiloxane impression material.
Salient characteristics:
The mixing tips shall be capable of automatic mixing and extruding syringeable vinyl polysiloxane material directly into a dental tray or intraoral tips.
Material. The tips shall be fabricated of a natural colored polypropylene.
Style, design and dimensions. The tips shall be in accordance with Figure 1, for style and design and be suitable for use with IMPRESSION KIT, DENTAL, VINYL Polysiloxane, Hydrophilic, Automatic Mixing. (See notes). The overall length of the tip shall be 2.98 ± 0.010 inches. The outside diameter shall be .28 ± 0.010 inch except for the extreme ends, the nozzle head and delivery tip. The tip shall consist of two parts, a 12-stage mixer and a nozzle. The 12-stage mixer shall be placed into the nozzle so that the flat blade is fully seated into the two grooves in the nozzle head. The tip shall attach to the syringe by means of a twist lock with two retainers. The mixing tip shall maintain, throughout the dental procedure, a proper fit to the syringe. The tips shall be disposable. The tips shall exhibit non-sticking qualities and shall not discolor or contaminate the impr3ession material. The mixing tip shall weigh less than 2 grams. A maximum of 2 ml of impression material shall be left in the mixing tip as waste at the end of use.
DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited.
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