The Chalk Crushing Value is determined by using the chalk impact crushing test, which measures the rate at which a sample of chalk lumps crushes under impacts from a freefalling rammer. The chalk crushing value can be used, together with the saturation moisture content of the intact chalk lumps, to classify chalk in relation to its behaviour as a freshly placed fill material. The test procedure is described for a single sample of chalk lumps, but normal procedure should be to calculate the mean value derived from six such tests on representative samples.
Database handle for the object. It is of XML type ID, so is constrained to beunique in the XML document within which it occurs. An external identifier for the object inthe form of a URI may be constructed using standard XML and XPointer methods. This is doneby concatenating the URI for the document, a fragment separator, and the value of the idattribute.
<div><h3>lang (as an attribute name)</h3><p>denotes an attribute whose value is a language code for the natural language of the content of any element; its value is inherited. This name is reserved by virtue of its definition in the XML specification.</p></div><div><h4>Notes</h4><p>Attempting to install the relevant ISO 2- and 3-letter codes as the enumerated possible values is probably never going to be a realistic possibility.</p><p>See BCP 47 at<a href="http://www.rfc-editor.org/rfc/bcp/bcp47.txt">http://www.rfc-editor.org/rfc/bcp/bcp47.txt</a>and the IANA language subtag registry at<a href="http://www.iana.org/assignments/language-subtag-registry">http://www.iana.org/assignments/language-subtag-registry</a>for further information.</p><p>The union allows for the 'un-declaration' of xml:lang with the empty string.</p></div>
Source
<element name="ChalkCrushingValueTest" type="diggs:ChalkCrushingValueTestProcedureType" abstract="false" substitutionGroup="diggs:AbstractLaboratoryTestProcedure"><annotation><documentation>The Chalk Crushing Value is determined by using the chalk impact crushing test, which measures the rate at which a sample of chalk lumps crushes under impacts from a freefalling rammer. The chalk crushing value can be used, together with the saturation moisture content of the intact chalk lumps, to classify chalk in relation to its behaviour as a freshly placed fill material. The test procedure is described for a single sample of chalk lumps, but normal procedure should be to calculate the mean value derived from six such tests on representative samples.</documentation></annotation></element>