ISO 25649-1:2017 水上および水中で使用するためのフローティングレジャー用品—パート1：分類、材料、一般要件、および試験方法 | ページ 6

3.1

buoyancy

resultant upthrust of a body when totally submerged in water with its uppermost part just below the water surface

Note 1 to entry: For the purpose of measuring, the buoyancy of boats (see ISO 25649-7) is measured as the volume of any chamber, which forms the inflatable hull including components which are permanently fixed to it. This buoyancy is measured by calculation or water filling and measuring the amount of water.

3.2

residual buoyancy

provision of remaining buoyancy in case of a defect of any buoyancy chamber

3.3

inflatable system

components (parts) of a device which contribute to stable floating conditions and/or safety

3.4

component

subgroup of the entire device which contributes to buoyancy, function and safety, integrated or detachable

3.5

static use

use which requires little action with regard to the user

Note 1 to entry: Product is mainly used for relaxing, sun bathing, laying, sitting, etc.

Note 2 to entry: In accordance with intended use.

3.6

dynamic use

use during which the user is in full action

Note 1 to entry: Product is mainly used for activities like jumping, climbing, rollicking (horse playing, rocking), sliding, swinging in and out from the water into or onto the inflatable, etc.

Note 2 to entry: In accordance with intended use.

3.7

positional use

product is used within a limited area

Note 1 to entry: This area is supposed to be in safe proximity to the shore, pool edge, etc.

Note 2 to entry: In accordance with intended use.

3.8

means of propulsion

devices used to generate the movements of a manually operated floating article

3.9

test panel

group of test subjects

3.10

assessment panel

group of independent experts checking process to establish compliance with the requirements specified in this document

3.11

conditioning

process to which the complete device is submitted prior to testing

3.12

load

human subjects and other items carried on or in an inflatable structure

3.13

floating stability

capability of a non-moving buoyant structure to withstand internal and external forces which tend to capsize it and maintaining a stable floating position

Note 1 to entry: Internal forces leading to capsizing can result from uneven load distribution, external forces leading to capsizing can result from wind or waves.

3.14

stable floating position

in-water position of a buoyant structure safeguarding upright floating and the on-board position of all passengers in sitting posture but in a position most likely to cause capsizing

3.15

load capacity

value stated by the manufacturer representing the maximum load on a buoyant structure under which a safe floating position is assured

3.16

permanent sealed buoyancy

sealed airtight compartment(s) filled with air, gas or inherent buoyant material

3.17

reinforced material

material which consists of a basic fabric and coated or laminated layer which ensure the air tightness

3.18

permissible maximum working pressure

permissible maximum overpressure indicated by the manufacturer which is measured immediately after the first inflation of the boat using a defined measuring device

Note 1 to entry: Where the permissible maximum working pressure is given by a range, the upper limiting value is decisive.