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Sizing and fit for protective clothing 295

Primary dimension—body dimension, in centimeters, that is used to designate the size of a
l
garment for the customer. For example, chest girth, waist girth, bust girth, hip girth, body
height, neck girth.
Secondary dimension—body dimension, in centimeters (or body mass in kilograms), that
l
can additionally be used to designate the size of a garment for the customer. For example,
body height, waist girth, back shoulder width, inside leg length, hip girth, chest girth, under-
arm length, arm length, back neck point to wrist length, neck girth.
These primary and secondary dimensions are listed separately for men’s, women’s,
boy’s, and girl’s clothing. These body measurements provide the basis for designation
of sizes, and this standard is used in combination with ISO 8559-1:2017 “Size desig-
nation of clothes—Part 1: Anthropometric definitions for body measurement,” which
comprises the definition and generation of anthropometric measurements that can be
used for the creation of size and shape profiles and their application in the field of
clothing (ISO 8559-1:2017, 2017; ISO 8559-2:2017, 2017).
The design of protective clothing shall facilitate its correct positioning on the user
and shall ensure that it remains in place for the foreseeable period of use, taking into
account ambient factors, together with the movements and postures that the wearer
could adopt during the course of work. For this purpose, adequate adjustment systems
or adequate size ranges shall be provided so as to enable protective clothing to be
adapted to the morphology of the user (ISO 13688:2013, 2013).
The intended user group will need to be defined to ensure that appropriate dimen-
sions are specified to encompass that population. Variations in size may be accommo-
dated by means of adequate adjustment systems or the provision of size ranges as
appropriate. Because different body dimensions are not necessarily closely correlated,
standards writers should consider the need to specify more than one essential anthro-
pometric dimension in order to ensure satisfactory fit for the intended user group.
Where necessary, the body mass of users may be specified. Writers of PPE product
standards should address at least the topic related to anthropometric factors detailed
in EN ISO 15537:2004 (EN 13921:2017, 2017; ISO 15537:2004, 2004).
For assessment of the anthropometric characteristics of PPE and their impact on the
wearer, it is necessary to determine the:

l range of users;
l purpose for which the PPE is intended (e.g., activities and environment);
l adequate fit requirements (e.g., closeness, coverage);
l anthropometric measurements of users it is necessary to define to ensure adequate fit across
the range of users;
l means of establishing actual PPE dimensions (including tolerances) for intended size
category(ies) within the range of users;
l means of describing size category(ies) to ensure correct selection of PPE by users
(EN 13921:2017, 2017).

11.3.1 Traditional anthropometry and databases

Anthropometry is a study and measurement of the physical dimensions and mass of
the human body and its constituent (external) parts. Taken from the Greek words
anthropos (human being or Man) and metron, to measure (ISO 15535:2012, 2012).