DR. EHRENSTORFER

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D5986 Daily Quality Control Standard, 5

D6160 Aroclor 1016, 35 mg/L in Methanol,

D6160 Aroclor 1221, 35 mg/L in Methanol,

D6160 Aroclor 1232, 35 mg/L in Methanol,

D6160 Aroclor 1248, 35 mg/L in Methanol,

D6160 Aroclor 1254, 35 mg/L in Methanol,