ASTM D7845 - D4815

Atom Scientific supplies Certified Reference Materials (CRMs) for ASTM Methods D7845 and D4815 from CPAchem, ideal for valve-timing and fuel oil speciation analyses in gas chromatography.

Our Range Includes...

Valve‑Timing Mixtures: 5‑component hydrocarbon blends (including ETBE, MTBE, diisopropyl ether, methylcyclopentane, hexane) in 1–5 mL volumes for back‑flush timing checks.

Analyte Kit (D4815‑04): 4 oxygenate components in iso-octane/xylene for calibration of oxygenate determination.

D5580‑02 Standard Solution: 2-component mix (likely aromatics/internal standard) for routine specification checks.

D7845/D4815 Check Standard: Multi-component blend for marine fuel speciation quality control.

ISO Certification: All CRMs are fully certified under ISO 17034 and ISO 17025, ensuring metrological traceability, quality control, accompanied by Certificates of Analysis and MSDS.