A compound, formulated to a specific ph value that tends to resist change in ph when moderate amounts of either a base or acid are added, or on dilution with a solvent.
Classification: Diagnostic or lab reagents on a backing, prepared diag/lab reagents whether or not on a backing, not of heading 3002 or 3006; certified ref materials
NSN 6620-01-648-1594
NSN 5998-01-464-0574
NSN 6220-01-193-6542
NSN 6320-01-462-3555
NSN 5910-01-651-0928
NSN 5835-01-599-1876
NSN 5925-01-024-9568
NSN 6130-01-359-6562
NSN 2925-01-633-4048
NSN 5950-01-371-3069
NSN 2925-00-062-5119
NSN 5945-00-607-4448