ASTM G 121 Standard Practice for Preparation of Contaminated Test Coupons for the Evaluation of Cleaning Agents

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ASTM G 121 Document Information:

Title
Standard Practice for Preparation of Contaminated Test Coupons for the Evaluation of Cleaning Agents

ASTM International

Publication Date:
Sep 10, 1998

Scope:

This practice describes the procedure for the preparation of single- and double-sided contaminated metallic test coupons for the evaluation of cleaning agents. It is applicable for the evaluation of cleaning agents proposed for the cleaning of oxygen-enriched systems and components. It also is applicable to other systems where contamination is a concern.

Several classes of contaminants most likely to be found in oxygen-enriched systems and components are identified. However, if the user of this practice has identified contaminants not included in these classes, such identified contaminants may be substituted for the preparation of the test coupons.

Preparation of nonmetallic substrates is not addressed, although similar methodology may be used. Solvent and cleaning agent compatibility with the nonmetallic substrate should be verified prior to the preparation of the test coupons. Typical nonmetallic materials utilized in oxygen systems are contained in Guide G 63.

This practice may involve hazardous materials, operations, and equipment. This practice does not purport to address all of the safety concerns associated with its use. It is the responsibility of whomever uses this practice to consult and establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

Keywords:

cleaning agents

contaminant

contamination

non-volatile residue

oxygen systems

standard test coupon

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