ASTM-D7756 2011

$40.63

D7756-11 Standard Test Method for Residues in Liquefied Petroleum (LP) Gases by Gas Chromatography with Liquid, On-Column Injection

Published By	Publication Date	Number of Pages
ASTM	2011	8

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Categories: 75.160.30 - Gaseous fuels, ASTM

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Description

ASTM D7756-11

Historical Standard: Standard Test Method for Residues in Liquefied Petroleum (LP) Gases by Gas Chromatography with Liquid, On-Column Injection

ASTM D7756

Scope

1.1 This test method covers the determination, by gas chromatography, of soluble hydrocarbon materials, sometimes called “oily residue,” which can be present in Liquefied Petroleum (LP) Gases and which are substantially less volatile than the LPG product.

1.2 This test method quantifies, in the range of 10 to 600 mg/kg (ppm mass), the residue with a boiling point between 174°C and 522°C (C₁₀ to C₄₀) in LPG. Higher boiling materials, or materials that adhere permanently to the chromatographic column, will not be detected.

1.3 Units—The values stated in SI units are to be regarded as standard. The values given in parentheses are for information only.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords

contaminants; gas chromatography; liquefied petroleum gases; LPG; mineral oil; oily residue; residue

ICS Code

ICS Number Code 75.160.30 (Gaseous fuels)

DOI: 10.1520/D7756-11

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Summary of Test Method
2	Significance and Use Apparatus TABLE 1
3	Reagents and Materials Hazards FIG. 1 FIG. 2
4	Preparation of Apparatus Calibration FIG. 3
5	Procedure Calculation or Interpretation of Results FIG. 4
6	Report Quality Control Precision and Bias FIG. 5
7	Keywords X1. DENSITY CALCULATION OF THE LPG AND CORRECTION OF THE RESIDUE RESULT X1.1 X1.2 X1.4 Component Properties for Common LPG Components X1.5 Example Calculation
8	X2. QUALITY CONTROL MONITORING X2.1 X2.2 X2.3 X2.4 X2.5 X2.6

Additional information

Standard Title	D7756-11 Standard Test Method for Residues in Liquefied Petroleum (LP) Gases by Gas Chromatography with Liquid, On-Column Injection
Published Code	ASTM
Publication Date	2011
Pages Count	8
ICS Codes	75.160.30 - Gaseous fuels