1.1该分类包含一对尺度，用于对办公设施的可用性进行分类，即办公设施满足布局和建筑因素某些可能要求的能力。 1.2在适用性方面，每对天平，如图所示。1到3用于对一个可用性主题进行分类。乘员需求量表（见图1至图3）中的每个段落总结了乘员可能需要的该主题的一个可用性水平。设施评级量表中的匹配条目（见图1至图3）是将要求转换为设施某些特征的描述，这些特征组合在一起，表明设施可能满足所需的可用性水平。 1.3设施评级表（见图1至图3）中的条目是指示性的，并不全面。它们用于快速扫描，以大致、快速和经济地估计办公设施随着时间的推移可能满足一种或另一种类型居住群体的需求的程度。 这些条目不是为了衡量、了解或评估办公设施的表现。 1.4该分类可用于估计现有设施的可用性水平。它还可用于估计已规划但尚未建造的设施的可用性，例如已编制单线图和轮廓规范的设施。 1.5该分类表明了什么会导致设施被评为某一可用性水平，但没有说明如何进行可用性评级，也没有说明如何分配可用性分数。该信息可在规程E1334中找到。本分类中的量表是对规程E1334的补充，并与规程E1334兼容。每一个都需要另一个。

1.1 This classification contains pairs of scales for classifying an aspect of the serviceability of an office facility, that is, the capability of an office facility to meet certain possible requirements for layout and building factors. 1.2 Within that aspect of serviceability, each pair of scales, shown in Figs. 1 through 3, are for classifying one topic of serviceability. Each paragraph in an Occupant Requirement Scale (see Figs. 1 through 3) summarizes one level of serviceability on that topic, which occupants might require. The matching entry in the Facility Rating Scale (see Figs. 1 through 3) is a translation of the requirement into a description of certain features of a facility which, taken in combination, indicate that the facility is likely to meet that level of required serviceability. 1.3 The entries in the Facility Rating Scale (see Figs. 1 through 3) are indicative and not comprehensive. They are for quick scanning to estimate approximately, quickly, and economically, how well an office facility is likely to meet the needs of one or another type of occupant group over time. The entries are not for measuring, knowing, or evaluating how an office facility is performing. 1.4 This classification can be used to estimate the level of serviceability of an existing facility. It can also be used to estimate the serviceability of a facility that has been planned but not yet built, such as one for which single-line drawings and outline specifications have been prepared. 1.5 This classification indicates what would cause a facility to be rated at a certain level of serviceability but does not state how to conduct a serviceability rating nor how to assign a serviceability score. That information is found in Practice E1334. The scales in this classification are complimentary to and compatible with Practice E1334. Each requires the other.