CWA Sulfide Back Catalog number: 55042 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 91683 Ethanol (1% w/v), 10mg/mL in water, 1ml Price on request 59628 pH 9.0 Standard @ 25°C Price on request ACQ-SE40-115 Ethanol standard in serum,4.0g/L,serum, 1.5mL Price on request