what pages in the guidebook are ordered by id number
Emergency Response Guidebook The second section, with yellow page borders, references the material in order of its assigned 4-digit ID number/UN/NA number (which is often placarded with the other hazardous materials placards) and identifies the appropriate guide number to reference in the Orange Section). Items highlighted in green in this section will have evacuation distances included in the Green Section.
PageRank PageRank is a link analysis algorithm and it assigns a numerical weighting to each element of a hyperlinked set of documents, such as the World Wide Web, with the purpose of "measuring" its relative importance within the set. The algorithm may be applied to any collection of entities with reciprocal quotations and references. The numerical weight that it assigns to any given element E is referred to as the PageRank of E and denoted by   P R ( E ) .  {\displaystyle PR(E).}  Other factors like Author Rank can contribute to the importance of an entity.