Standard Reference Materials

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Excerpt from Standard Reference Materials: Use of Standard Light-Sensitive Paper for Calibrating Carbon Arcs Used in Testing Textiles for Colorfastness to LightNbs Misc. Publ. 260-1, Standard Reference Materials: Preparation of nbs White Cast Iron Spectrochemical Standards, June 1964. 30 cents.* nbs Misc. Publ. 260-2, Standard Reference Materials: Preparation of nbs copper-base Spectrochemical Standards, October 1964. 35 cents.* nbs Misc. Publ. 260-3, Standard Reference Materials: Metallographic Characterization of an nbs Spectrometric low-alloy Steel Standard, October 1964. 20 cents.* (out of print).Nbs Misc. Publ. 260-4, Standard Reference Materials: Sources of Information on Stand ard Reference Materials, February 1965. 20 cents.* (out of print).About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.