CLP Tuning Standard Back Catalog number: 53156 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11136.27-50-T Tris(4-isopropylphenyl) phosphate,50 µg/mL,toluene,1mL, Price on request 58020 Calcium (Ca) Price on request 83553 Isovaleraldehyde-DNPH Price on request