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 6685-00-275-4401
NSN 6320-00-174-1362
NSN 6150-00-058-8669
NSN 6105-01-386-7572
NSN 5835-01-190-5192
NSN 5895-01-286-1345
NSN 5835-00-770-2843
NSN 5950-01-461-8783
NSN 5945-01-335-7514
NSN 5945-00-276-9261
NSN 5990-00-984-2200
NSN 5935-00-467-9462