BS ISO 21994:2007

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Variables
  5.1 Reference system
  5.2 Variables to be measured
6 Measuring equipment
  6.1 Description
  6.2 Transducer installation
  6.3 Calibration
  6.4 Data processing
7 Test conditions
  7.1 General test conditions
  7.2 General data
  7.3 Test track
  7.4 Environmental conditions
  7.5 Test vehicle
8 Test procedure
  8.1 Test preparation
  8.2 Measurements
9 Data evaluation and presentation of results
  9.1 General
  9.2 Nomenclature of distances and decelerations
  9.3 Determination of normalized stopping distance
      s[A100,norm]
  9.4 Determining of ABS-braking distance
      s[L90,norm](100) (optional)
  9.5 Determination of normalised build-up distance
      s[F10,norm] (optional)
Annex A (informative) Test report - General data
Annex B (informative) Test report - Test conditions
        and results
Annex C (informative) Test sequence, specific terms and
        background information
Annex D (normative) Method for determination of F_ABS
Annex E (normative) Requirements for measurements and
        measuring equipment
Annex F (normative) Structure of the stopping distance
        calculation
Bibliography

Defines an open-loop test method to determine the stopping distance of a vehicle during a straight-line braking manoeuvre, with the Anti-lock Braking System (ABS) fully engaged. Applies to passenger cars as defined in ISO 3833 and light trucks.

This International Standard specifies an open-loop test method to determine the stopping distance of a vehicle during a straight-line braking manoeuvre, with the Anti-lock Braking System (ABS) fully engaged. This International Standard applies to passenger cars as defined in ISO3833 and light trucks.

This International Standard specifies a reference method and is especially designed to ensure high repeatability.