ASTM D7876

Sample Decomposition Using Microwave Heating (With or Without Prior Ashing) for Atomic Spectroscopic Elemental Determination in Petroleum Products and Lubricants

Applicability: ASTM D7876 is a standard practice for decomposing petroleum products and lubricants using microwave heating (with or without prior ashing) to prepare samples for atomic spectroscopic elemental determination. It provides a rapid, closed-vessel digestion method to measure trace metals, minimizing sample contamination and preventing the loss of volatile elements.

Purpose: The purpose of ASTM D7876 is to decompose organic matrices (oils, additives, lubricants) using acid digestion in a microwave to obtain a homogeneous aqueous solution for elemental analysis (ICP-OES, ICP-MS).