---
code: "ASTM G81"
title: "Standard test method for jaw crusher gouging abrasion test"
institution: "ASTM"
category: "crushers-mills"
revision: "2018"
scope: "Covers a laboratory jaw crusher procedure to rank metallic materials and others for resistance to gouging abrasion using a prescribed charge of crushed rock, producing comparative wear data for materials selection and R&D."
testMethod: "A small laboratory jaw crusher is loaded with sized hard-rock feed and run under controlled conditions; mass loss of jaw plates (or defined wear coupons) is measured and reported relative to a reference material."
specimenRequirements: "Jaw plates or test coupons, feed material grading, and number of crushing cycles shall follow the standard’s specified dimensions and conditioning so results are comparable between laboratories."
url: "https://vectorbtc.com.tr/resources/standards/astm-g81/"
---

ASTM G81 is one of the few ASTM methods that explicitly standardises use of a **laboratory jaw crusher** as the wear-test apparatus, distinct from general aggregate sample-reduction practices.