ASTM D6470-99(2015) PDF

Scope: 4.1 A knowledge of water extractable inorganic halides in oil is important when deciding whether or not the oils need desalting. Excessive halide, especially in crude oil, frequently results in higher corrosion rates in refining units.

1.1 This test method covers the determination of salt in crude oils. For the purpose of this test method, salt is expressed as % (m/m) NaCl (sodium chloride) and covers the range from 0.00058201;% to 0.158201;% (m/m).

1.2 The limit of detection is 0.00028201;% (m/m) for salt (as NaCl).

1.3 The test method is applicable to nearly all of the heavier petroleum products, such as crude oils, residues, and fuel oils. It may also be applied to used turbine oil and marine diesel fuel to estimate seawater contamination. Water extractable salts, originating from additives present in oils, are codetermined.

1.4 The values stated in SI units are to be regarded as the standard.

1.5 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.

ASTM D6470-99(2015) Referenced Document

ASTM D1193 Standard Specification for Reagent Water
ASTM D329 Standard Specification for Acetone
ASTM D4006 Standard Test Method for Water in Crude Oil by Distillation
ASTM D4057 Standard Practice for Manual Sampling of Petroleum and Petroleum Products
ASTM D4177 Standard Practice for Automatic Sampling of Petroleum and Petroleum Products
ASTM D4377 Standard Test Method for Water in Crude Oils by Potentiometric Karl Fischer Titration*， 2024-04-20 Update
ASTM D4928 Standard Test Method for Water in Crude Oils by Coulometric Karl Fischer Titration*， 2018-07-01 Update
ASTM D770 Standard Specification for Isopropyl Alcohol
ASTM D843 Standard Specification for Nitration Grade Xylene
ASTM E200 Standard Practice for Preparation, Standardization, and Storage of Standard and Reagent Solutions for Chemical Analysis

2020 ASTM D6470-99(2020) Standard Test Method for Salt in Crude Oils (Potentiometric Method)
1999 ASTM D6470-99(2015) Standard Test Method for Salt in Crude Oils (Potentiometric Method)
1999 ASTM D6470-99(2010) Standard Test Method for Salt in Crude Oils (Potentiometric Method)
1999 ASTM D6470-99(2004) Standard Test Method for Salt in Crude Oils (Potentiometric Method)
1999 ASTM D6470-99 Standard Test Method for Salt in Crude Oils (Potentiometric Method)