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This specification covers two dimensionally different (short and long) disposable glass micropipets used primarily to collect whole human blood specimens for clinical analysis and testing. Short and long pipets are available as coated with heparin (Type I) or uncoated (Type II).The pipets shall be fabricated from borosilicate glass, Type I, Class B, or soda lime glass, Type II. Heparin shall be the ammonium salt isolated from the lungs or intestinal mucosa of beef or pork origin and shall meet the specified heparin potency. The physical requirements including design, dimensions, workmanship, color coding, capillarity, fluidity, lot or control number, resistance to centrifugal force, and heparin coating are specified. The following tests shall be performed: capillarity test, fluidity test, sheep plasma test, human whole blood test, resistance to centrifugal force test, and heparin content test. The physical requirements for short Caraway pipet and long Natelson pipet are illustrated as well.
This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.
Significance and Use
1.1 This specification covers two dimensionally different disposable glass micropipets used primarily to collect whole human blood specimens for clinical analysis and testing. They are available as coated with heparin or uncoated.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E438 Specification for Glasses in Laboratory Apparatus
ICS Number Code 11.100 (Laboratory medicine); 11.100.30 (Analysis of blood and urine)
UNSPSC Code 41121511(Serological pipettes)