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适用范围：<p>This test method is intended to be used for compliance with compositional specifications for iron content in manganese ores. It is assumed that all who use these procedures will be trained analysts capable of performing common laboratory procedures skillfully and safely. It is expected that work will be performed in a properly equipped laboratory and that proper waste disposal procedures will be followed. Appropriate quality control practices must be followed such as those described in Guide <a href="http://myastm.astm.org/SUBSCRIPTION/NewValidateSubscription.cgi?E882-HTML">E882</a>. </p><p id="s00002">1.1 This test method covers the determination of iron in manganese ore in the range from 2 % to 20 %. </p> <p class="desc" id="N00101"> <span class="smallcap">Note</span> 18212;As used in this test method (except as related to the term <span class="italic">relative standard deviation</span>), <span class=''unicode''>x201C;</span>percent<span class=''unicode''>x201D;</span> or <span class=''unicode''>x201C;</span>%<span class=''unicode''>x201D;</span> refers to mass fraction (wt/wt) of the form g/100g.</p> <p id="s00003">1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.</p> <p id="s00004">1.3 <span class="italic">This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.</span>