Sulfide (S), 1000 µg/mL in Water, 3 x 20ml Back Catalog number: 54139 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended VHG-V21-30-100 V21 Wear Metals Standard: 30µg/g in Hydrocarbon Oil, 100g Price on request 59927 Fluoride (F-), 10µg/mL in Water, 500ml Price on request SCP150-250-006 CONOSTAN AM, 1000 ppm, 100g Price on request