Arsenic (As) Back Catalog number: 57133 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-12200A1-1ML Imazamethabenz-methyl, 100µg/ml in AL, 1ml Price on request 679769 Propamocarb-N-desmethyl hydrochloride, 10.0 µg/ml, Price on request 19116 EPA Method 625 Base/Neutrals Mix #3 Price on request