pH 8.0 Standard @ 25°C Back Catalog number: 59277 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 674859 Ethylene thiourea, 250mg Price on request 63171 2,2',3,3',4,4',6-Heptachlorobiphenyl (171) Price on request 50035 Sodium Bromide (Br-) Price on request