Natural Gas


DCG's Natural Gas Certified Reference Materials ensures the product quality and value of your natural gas process streams.

The concentration of components in the natural gas is utilized for the calculation of its calorific value to determine its financial value. Natural gas naturally contains varying amounts and speciation of sulfur compounds. These compounds can cause corrosion and catalyst issues. For over 30 years DCG has perfected the manufacturing process for total and speciated sulfur reference materials.

DCG reference materials can provide evidence of accurate and traceable analyses for custom requests and for these methods:

Standard Test Method for Determination of Sulfur Compounds in Natural Gas and Gaseous Fuels by Gas Chromatography and Chemiluminescence

  • Sulfur Compounds in Natural Gas and Gaseous Fuels (Cylinder)

Standard Test Method for Sulfur Compounds in Light Petroleum Liquids by Gas Chromatography and Sulfur Selective Detection

  • Sulfur Compounds in Light Petroleum Liquids (Cylinder or CPC with Pressure Pad)

Analysis of Natural Gas Liquids by Gas Chromatography

  • Natural Gas Liquid and Similar Mixtures (Cylinder or CPC with Pressure Pad)

Analysis for Natural Gas and Similar Gaseous Mixtures by Gas Chromatography and Standard Test Method for Analysis of Natural Gas by Gas Chromatography

  • Natural Gas and Similar Gaseous Mixtures (Cylinder)

Method for the Extended Analysis for Natural Gas and Similar Gaseous Mixtures by Temperature Program Gas Chromatography

  • Natural Gas and Similar Gaseous Mixtures – Extended (Cylinder)

Standard Test Method for Determination of Hydrocarbons in Liquefied Petroleum (LP) Gases and Propane/Propene Mixtures by Gas Chromatography and Standard Practice for Analysis of Reformed Gas by Gas Chromatography

  • Hydrocarbons in Liquefied Petroleum Gases, Propane/Propene Mixtures, Reformed Gas and Similar Gaseous Mixtures – Ex. RFG or LPG (Cylinder & Cylinder or CPC with Pressure Pad)

Standard Test Method for Determination of Hydrocarbons in Liquefied Petroleum (LP) Gases and Propane/Propene Mixtures by Gas Chromatography and Propane/Propene Mixtures by Gas Chromatography and Standard Practice for Analysis of Reformed Gas by Gas Chromatography

Standard Test Method for Determination of Total Volatile Sulfur in Gaseous Hydrocarbons and Liquefied Petroleum Gases by Ultraviolet Fluorescence

Natural Gas Standards (CRM or RM based upon the components and concentrations)

  • Hydrogen Sulfide
  • Carbon Dioxide – Especially High Concentrations
  • Ethane – Especially High Concentrations
  • Hexanes Plus Backflush
  • Hexanes Plus Extended Analysis
  • High, Medium, and Low BTU Gas
  • All types of NG Analyzers
  • Specific Gravity
  • BTEX
  • NG Standards 1, 2 & 3 in One Liter Refillable Cylinders

Natural Gas Liquid Standards

  • NGL #’s 5 & 6 with or without Neopentane
  • E/P Standards
  • Condensate Standards
  • Hexanes Plus NP: Designed for C6+ backflush applications for which the desired C6+ breakdown is 69.5% C6, 23% C7, 6% C8, 1.5% C9
  • Hexanes Plus CE: Designed for C6+ backflush applications for which the desired C6+ breakdown is 45% C6, 35% C7 & 20% C8
  • Hexanes Plus BF: Designed for C7+ backflush applications and contains six C6s, C7, C8, C9, C10.
  • Hexanes Plus EX: Designed for extended analysis applications, contains 58 compounds from C6 – C10

Hexanes Plus Fractions (Gravimetrically prepared and verified by one or more analytical techniques)

  • Hexanes Plus NP: Designed for C6+ backflush applications for which the desired C6+ breakdown is 69.5% C6, 23% C7, 6% C8, 1.5% C9
  • Hexanes Plus CE: Designed for C6+ backflush applications for which the desired C6+ breakdown is 45% C6, 35% C7 & 20% C8
  • Hexanes Plus BF: Designed for C7+ backflush applications and contains six C6s, C7, C8, C9, C10
  • Hexanes Plus EX: Designed for extended analysis applications, contains 58 compounds from C6 – C10

Total Sulfur Standards

  • Gas Phase (N2, He, C1, C2, C3, C3= Matrices, ppb, ppm & % levels)
  • Liquid Phase (LPG, ppb, ppm to % levels)

Oxygen in Nitrogen or Helium

  • ppm to % levels

Total Fluoride Standards

  • ≥ 1 ppm Total Fluoride from 2-Fluoropropane in n-Butane by weight

Low Level Oxygenate Standards

Contains 50 ppm each of the following by weight:

  • Methanol
  • n-Propanol (1-Propanol)
  • Isopropanol (2-Propanol)
  • n-Butyl Alcohol (1-Butanol)
  • sec-Butyl Alcohol (2-Butanol)
  • 2-Butanone (Methyl Ethyl Ketone),
  • MTBE
  • Ethanol
  • Acetone
  • Tertiary Butyl Alcohol (2-Methyl-2-Propanol)
  • Isobutyl Alcohol (2-Methyl-1-Propanol)
  • TAME
  • SBME
  • ETBE
  • 200 ppm of Dimethyl Ether by weight in n-Butane

Contact our Customer Service Team and they will assist you with building a program that you can count on year after year.

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