Skip to Content

Custom Reference Standards

  1. Products
  2. Reference Standards

Reference Standards

Peak Performance™ certified reference standards

Standardize Your Standards

CPI International provides a comprehensive portfolio of reference materials and standards to support analytical testing across industries. From inorganic and organic standards to cannabis, food safety, microbiology, and environmental solutions, our selection of standards is designed to meet the diverse needs of modern laboratories.

  • Certified Reference Materials (CRMs): Produced in ISO 17034–accredited facilities for accuracy and traceability.
  • Reference Materials (RMs): Manufactured and tested in ISO/IEC 17025–accredited laboratories.
  • Application-Specific Standards: Covering spectroscopy, chromatography, mass spectrometry, microbiology, and wet chemistry methods.
  • Custom Standards: Tailored formulations to reduce workload, improve efficiency, and support regulatory compliance in your industry.

Set up Auto-ship and relax in the knowledge that you'll never run out of your critical standards again!

Premium Quality
Standards Reduce
Reworks

Certified, Traceable,
Accountable
Lower Your
Cost Per Test
Custom Standards
Available @ Fast
Turnaround
Private Label Available
for Small Distributors
Predictable Cost with
Auto-Shipment
24-Hour Quotes on stock standards and custom mixes
Late Order
Cutoff Time
2026 Variant Price List
Sort By: Featured

Reference Standards

[4400-CALMX8-100] Instrument Check Standard #8, HNO3, 100 mL
Instrument Check Standard #8, HNO3, 100 mL
Item No.: 4400-CALMX8-100
Al 50, As 50, Co 50, Cr 50, Cu 50, K 50, Na 50, P 50, Pb 50 in 2% HNO3. 100 mL
$ 293.00 293.0 USD
[4400-10PPM681-250] Zinc (Zn), 10 µg/mL, HNO3, 250 mL
Zinc (Zn), 10 µg/mL, HNO3, 250 mL
Item No.: 4400-10PPM681-250
$ 101.00 101.0 USD
[4400-10PPM671-100] Yttrium (Y), 10 µg/mL, HNO3, 100 mL
Yttrium (Y), 10 µg/mL, HNO3, 100 mL
Item No.: 4400-10PPM671-100
$ 67.00 67.0 USD
[4400-100PPM671-500] Yttrium (Y), 100 µg/mL, HNO3, 500 mL
Yttrium (Y), 100 µg/mL, HNO3, 500 mL
Item No.: 4400-100PPM671-500
$ 145.00 145.0 USD
[4400-010111] GFAA Spike Standard, 2% HNO3+Trace HF, 100 mL
GFAA Spike Standard, 2% HNO3+Trace HF, 100 mL
Item No.: 4400-010111
$ 97.00 97.0 USD
[4400-100PPM651-100] Vanadium (V), 100 µg/mL, HNO3, 100 mL
Vanadium (V), 100 µg/mL, HNO3, 100 mL
Item No.: 4400-100PPM651-100
$ 67.00 67.0 USD
[4400-100PPM641-100] Uranium (U), 100 µg/mL, HNO3, 100 mL
Uranium (U), 100 µg/mL, HNO3, 100 mL
Item No.: 4400-100PPM641-100
$ 97.00 97.0 USD
[4400-10PPM623-100] Titanium (Ti), 10 µg/mL, HNO3, 100 mL
Titanium (Ti), 10 µg/mL, HNO3, 100 mL
Item No.: 4400-10PPM623-100
$ 67.00 67.0 USD
[4400-50PPM612-250] Tin (Sn), 50 µg/mL, HCl, 250 mL
Tin (Sn), 50 µg/mL, HCl, 250 mL
Item No.: 4400-50PPM612-250
$ 101.00 101.0 USD
[4400-100PPM613-100] Tin (Sn), 100 µg/mL, HNO3, 100 mL
Tin (Sn), 100 µg/mL, HNO3, 100 mL
Item No.: 4400-100PPM613-100
$ 67.00 67.0 USD
[4400-10PPM613-100] Tin (Sn), 10 µg/mL, HNO3, 100 mL
Tin (Sn), 10 µg/mL, HNO3, 100 mL
Item No.: 4400-10PPM613-100
$ 67.00 67.0 USD
[4400-010109] GFAA Initial Calibration Standard, 2% HNO3+Trace HF, 100 mL
GFAA Initial Calibration Standard, 2% HNO3+Trace HF, 100 mL
Item No.: 4400-010109
$ 96.00 96.0 USD
[4400-100PPM613-500] Tin (Sn), 100 µg/mL, HNO3, 500 mL
Tin (Sn), 100 µg/mL, HNO3, 500 mL
Item No.: 4400-100PPM613-500
$ 145.00 145.0 USD
[Z-030262-22-10] Heptachlor Epoxide B Solution, 10 mg/L, 2 x 5 mL
Heptachlor Epoxide B Solution, 10 mg/L, 2 x 5 mL
Item No.: Z-030262-22-10
$ 40.00 40.0 USD
[4400-100PPM544-250] Sulfur (S), 100 µg/mL, H2O, 250 mL
Sulfur (S), 100 µg/mL, H2O, 250 mL
Item No.: 4400-100PPM544-250
$ 101.00 101.0 USD
[4400-460PPM521-100] Sodium (Na), 460 µg/mL, HNO3, 100 mL
Sodium (Na), 460 µg/mL, HNO3, 100 mL
Item No.: 4400-460PPM521-100
$ 67.00 67.0 USD
[4400-010107] GFAA Calibration Standard, 2% HNO3+Trace HF, 100 mL
GFAA Calibration Standard, 2% HNO3+Trace HF, 100 mL
Item No.: 4400-010107
$ 96.00 96.0 USD
[4400-250PPM521-100] Sodium (Na), 250 µg/mL, HNO3, 100 mL
Sodium (Na), 250 µg/mL, HNO3, 100 mL
Item No.: 4400-250PPM521-100
$ 67.00 67.0 USD
[4400-100PPM521-100] Sodium (Na), 100 µg/mL, HNO3, 100 mL
Sodium (Na), 100 µg/mL, HNO3, 100 mL
Item No.: 4400-100PPM521-100
$ 67.00 67.0 USD
[4400-10PPM511-100] Silver (Ag), 10 µg/mL, HNO3, 100 mL
Silver (Ag), 10 µg/mL, HNO3, 100 mL
Item No.: 4400-10PPM511-100
$ 67.00 67.0 USD