286-290<span style="font-size:14.0pt;line-height:
115%;font-family:" times="" new="" roman";mso-fareast-font-family:"times="" roman";="" color:black;mso-ansi-language:en-in;mso-fareast-language:en-in;mso-bidi-language:="" hi"="" lang="EN-IN">Hologram interferometric techniques are finding wide-range applications for
carrying out non-destructive testing studies that are suitable in different
situations. On account of the measuring accuracy of these techniques, they
offer a unique application for non-destructive diagnosis of incipient faults or
critical damages in precious and ancient artifacts, paintings, sculptures and
monuments etc. caused due to environmental effects and aging. Investigations
have been carried out by using sandwich hologram interferometric techniques for
performing micro-detachment studies in paper paintings pasted and mounted on
wooden panel boards. Experimental results achieved have been discussed.</span