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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 suitable thermal environment and indoor air conditions.

1.2 Within this aspect of serviceability, each pair of scales shown in Figs. 1-53 is for classifying one topic of serviceability. Each topic typically is broken down into two more demand functions and supply features. Each paragraph in an Occupant Requirement Scale (DEMAND Scale, see Figs. 1-5) summarizes one level of requirement for serviceability on that function, which occupants might require. The matching paragraph in the Facility Rating Scale (SUPPLY Scale, see Figs. 1-5) 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.

FIG. 1 Demand Scale A.4.1 for Information on Temperature and Humidity

FIG. 1 Demand Scale A.4.1 for Information on Temperature and Humidity (continued)

FIG. 1 Demand Scale A.4.1 for Information on Temperature and Humidity (continued)

FIG. 1 Supply Scale A.4.1 for Information on Temperature and Humidity (continued)

FIG. 1 Supply Scale A.4.1 for Information on Temperature and Humidity (continued)

FIG. 1 Supply Scale A.4.1 for Information on Temperature and Humidity (continued)

FIG. 2 Demand Scale A.4.2 for Information on Indoor Air Quality Conditions

FIG. 2 Demand Scale A.4.2 for Information on Indoor Air Quality Conditions (continued)

FIG. 2 Supply Scale A.4.2 for Information on Indoor Air Quality (continued)

FIG. 2 Supply Scale A.4.2 for Information on Indoor Air Quality (continued)

FIG. 2 Supply Scale A.4.2 for Information on Indoor Air Quality (continued)

FIG. 3 Demand Scale A.4.3 for Information on Ventilation Supply Air

FIG. 3 Demand Scale A.4.3 for Information on Ventilation Supply Air (continued)

FIG. 3 Supply Scale A.4.3 for Information on Ventilation Supply Air (continued)

FIG. 3 Supply Scale A.4.3 for Information on Ventilation Supply Air (continued)

FIG. 3 Supply Scale A.4.3 for Information on Ventilation Supply Air (continued)

FIG. 4 Demand Scale A.4.4 for Information on Local Adjustment by Occupants

FIG. 4 Demand Scale A.4.4 for Information on Local Adjustment by Occupants (continued)

FIG. 4 Supply Scale A.4.4 for Information on Local Adjustment by Occupants (continued)

FIG. 4 Supply Scale A.4.4 for Information on Local Adjustment by Occupants (continued)

FIG. 5 Demand Scale A.4.5 for Information on Ventilation with Openable Windows

*Center for the Built Environment, University of California, Berkeley, 2013, https://cbe.berkeley.edu/research/mixed-mode-building-research/.

FIG. 5 Demand Scale A.4.5 for Information on Ventilation with Openable Windows (continued)

FIG. 5 Supply Scale A.4.5 for Information on Ventilation with Openable Windows (continued)

*Center for the Built Environment, University of California, Berkeley, 2013, https://cbe.berkeley.edu/research/mixed-mode-building-research/.

FIG. 5 Supply Scale A.4.5 for Information on Ventilation with Openable Windows (continued)

FIG. 5 Supply Scale A.4.5 for Information on Ventilation with Openable Windows (continued)

1.3 The paragraphs in the Facility Rating Scale (see Figs. 1-5) are indicative and not comprehensive. They are for quick scanning to estimate approximately, quickly, and economically how well a facility is likely to meet the needs of one or another type of occupant group over time. The paragraphs 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 schematic or preliminary drawings and outline specifications have been prepared.

1.5 This standard indicates what would cause a facility to be rated (classified) at a certain level of serviceability but does not state how to conduct a serviceability rating or 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.

1.6 This standard indicates what would cause a requirement to be classified as being at a specific level, but does not state how to ascertain a requirement, or how to assign a specific level. This information is found in Practice E1679. The scales in this classification are complimentary to and compatible with Practice E1679. Each requires the other.

1.7 The scales are intended to identify the levels of various requirements unique to a particular user, and the serviceability (capability) of a building to meet those requirements. The scales thus supplement rather than include code requirements. It remains the responsibility of designers, builders, and building managers to meet applicable code requirements relative to their respective roles in facility design, construction, and ongoing management.

1.8 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.9 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, health, and environmental practices and determine the applicability of regulatory requirements prior to use.

1.10 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

4.1 Each Occupant Requirement Scale (see Figs. 1-5) in this classification provides a means to set the required level of serviceability of a building or facility for one topic of serviceability and to compare that level against any level of any other occupant, or of any building or facility.

4.2 Each Facility Rating Scale (see Figs. 1-5) in this classification provides a means to estimate the level of serviceability of a building or facility for one topic of serviceability and to compare that level against any level of requirement of any occupant, or of any other building or facility.

4.3 This classification can be used for comparing how well different buildings or facilities meet a particular requirement for serviceability. It is applicable despite differences such as location, structure, mechanical systems, age, and building shape.

4.4 This classification can be used to estimate the amount of variance of serviceability from target or from requirement, for a single office facility, or within a group of office facilities.

4.5 This classification can be used to estimate the following:

4.6 Use of this classification does not result in building evaluation or diagnosis. Building evaluation or diagnosis generally requires a special expertise in building engineering or technology, and the use of instruments, tools, or measurements.

4.7 This classification applies only to facilities that are building constructions, or part thereof. (While classification may be useful in rating the serviceability of facilities that are not building constructions, such facilities are outside the scope of this classification. See discussion under definition 3.1.1.)

4.8 This classification is not intended for, and is not suitable for, use for regulatory purposes nor for fire hazard assessment nor for fire risk assessment.