Document

Hydrogen Reactive-Refractory Metals using H836

Reference Number: 203-821-456

L'introduction

Sampling and sample preparation of refractory metals such as titanium and zirconium is somewhat different from that of steel. Unlike steel samples, hydrogen is not as mobile in this group of materials; therefore, storage in liquid nitrogen or dry ice is not required. However, it is
important to keep the sample cool when cutting or sectioning. ASTM E 1447 “Standard Test Method for Determination of Hydrogen in Reactive Metals and Reactive Metal Alloys by Inert Gas Fusion with Detection by Thermal Conductivity or Infrared Spectrometry” permits surface preparation by abrading (if necessary to remove contamination).