ASTM D4042-93(2009)
Test Method for Sampling and Testing for Ash and Total Iron in Steel Mill Dispersions of Rolling Oils

Standard No.

ASTM D4042-93(2009)

Release Date

1993

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D4042-93(2014)

Latest

ASTM D4042-24

Scope

The life cycle and cleanliness of a recirculating steel mill rolling oil dispersion is affected by the amount of iron present. This iron consists mainly of iron from acid pickling residues and iron from attrition of the steel sheet or rolls during cold rolling. In sampling rolling oils for total iron it is difficult to prevent adherence of iron containing sludge to the sample container. Thus, the accuracy of a total iron determination from an aliquot sample is suspect. This practice provides a means for ensuring that all iron contained in a sample is included in the analysis.

Although less significant, the ash content is still an essential part of the procedure for obtaining a total iron analysis. Generally, the ash will be mostly iron, and in many cases, could be used as a substitute for total iron in determining when to change the dispersion.

FIG. 1 Possible Holding Fixture and Assembly System

1.1 This test method describes a procedure for sampling and testing dispersions of rolling oils in water from operating steel rolling mills for determination of ash and total iron content. Its purpose is to provide a test method such that a representative sample may be taken and phenomenon such as iron separation, fat-emulsion separation, and so forth, do not contribute to analytical error in determination of ash and total iron.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 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. For specific warning statements, see Sections 6 and 7.

ASTM D4042-93(2009) history

• 2024 ASTM D4042-24 Standard Test Method for Sampling and Testing for Ash and Total Iron in Steel Mill Dispersions of Rolling Oils
• 2019 ASTM D4042-93(2019) Standard Test Method for Sampling and Testing for Ash and Total Iron in Steel Mill Dispersions of Rolling Oils
• 1993 ASTM D4042-93(2014) Standard Test Method for Sampling and Testing for Ash and Total Iron in Steel Mill Dispersions of Rolling Oils
• 1993 ASTM D4042-93(2009) Test Method for Sampling and Testing for Ash and Total Iron in Steel Mill Dispersions of Rolling Oils
• 1993 ASTM D4042-93(2003)e1 Test Method for Sampling and Testing for Ash and Total Iron in Steel Mill Dispersions of Rolling Oils
• 1993 ASTM D4042-93(1998) Test Method for Sampling and Testing for Ash and Total Iron in Steel Mill Dispersions of Rolling Oils