
Sigma Chemical Co.
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HBSS W/O CALC CHLOR/MAG SULF/PHEN RED/SB NO. H4891 is an FDA 510(k)-cleared medical device (K884573) manufactured by Sigma Chemical Co.. This device is classified under the Hematology specialty. FDA Device Class I (General Controls) — lowest risk category. FDA clearance granted on November 21, 1988. Regulation: 8.