Certified Reference Materials
Traceable standards for calibration, method validation, and quality assurance. Every CRM we supply comes with a full certificate of analysis, uncertainty values, and documented traceability chain.
Single Element ICP Standard — Iron (Fe)
ATM-SE-FE-1000
High-purity single-element standard for ICP-OES and ICP-MS calibration. Certified against NIST primary standards with full uncertainty budget.
Concentration
1000 mg/L in 2% HNO₃
Matrix
Aqueous
Certified Value
1000 ± 2 mg/L
Volume
100 mL
Traceability
NIST SRM 3126a
Multi-Element ICP Standard — 10 Metals Mix
ATM-ME-10MIX
Certified 10-element mix (Ag, Al, As, Ba, Be, Bi, Ca, Cd, Co, Cr) for simultaneous multi-element analysis by ICP-OES or ICP-MS.
Concentration
10 mg/L each in 2% HNO₃
Matrix
Aqueous
Certified Value
10 ± 0.05 mg/L per element
Volume
100 mL
Traceability
NIST SRM 3100 Series
pH Buffer Solution — pH 4.00
ATM-PH-400
Certified pH buffer for electrode calibration and verification. Colour-coded for easy identification. Stable for 12 months from date of manufacture.
Concentration
pH 4.00 ± 0.02 at 25°C
Matrix
Aqueous buffer
Certified Value
pH 4.00 ± 0.02
Volume
500 mL
Traceability
NIST SRM 185h
Conductivity Standard — 1413 µS/cm
ATM-COND-1413
Certified conductivity standard for meter calibration. Prepared from ultra-pure KCl in ASTM Type I water. Traceable to NIST.
Concentration
1413 µS/cm ± 0.5% at 25°C
Matrix
Aqueous KCl
Certified Value
1413 ± 7 µS/cm
Volume
500 mL
Traceability
NIST SRM 3190
Pesticide Mix Standard — Organochlorines
ATM-ORG-OCL-100
Certified organochlorine pesticide mix for GC-ECD and GC-MS analysis. 16 compounds including α-BHC, β-BHC, γ-BHC, aldrin, dieldrin, and endrin.
Concentration
100 µg/mL each in acetone
Matrix
Organic solvent
Certified Value
100 ± 1 µg/mL per compound
Volume
1 mL ampule
Traceability
NIST SRM 2275
Heavy Metals in Drinking Water — EPA 200.8
ATM-EPA-200-8
Certified reference standard for EPA Method 200.8 compliance. Contains all required analytes at regulatory check concentrations. Ideal for drinking water QC.
Concentration
Various, see CoA
Matrix
Aqueous, 1% HNO₃
Certified Value
Per EPA 200.8 requirements
Volume
100 mL
Traceability
EPA/NIST traceable
Can't find what you need?
We source custom reference materials and non-catalogue standards. Tell us your application and we'll find the right solution.