Luminous reflectance testing
Scope
AS1428.4 sets out requirements for the design and application of tactile indicators, to ensure safe and dignified mobility of people who are blind or vision impaired. To do this the luminous contrast between the Tactile Ground Surface Indicator (TGSI) and adjacent surfaces must be determined. LightLab offers a testing service that satisfies this need by accurately quantifying the surfaces in terms of luminous reflectance or contrast.
Results
Results can be issued using either of the two test methods set out in F3 and F5 of the standard. Using these results the luminous contrast can be determined to prove suitability of materials.Each category and sample type has a defined test report format containing a summary of the test measurements and a pass/fail summary if required by the standard.
Depending on your application:-
F3) Determining luminous reflectance (Yd or Yw) for a material. This result is specific to the product tested, and provides a value that can be used to determine the contrast between it and other known surfaces. This is useful to manufacturers in providing specifications of their product to their customers. Results can be determined for both wet and dry applications.
F5) Measurement of luminous contrast. This is a site specific method, typically the test is carried out under the prevailing lighting and weather conditions.
AS1428.4 sets out requirements for the design and application of tactile indicators, to ensure safe and dignified mobility of people who are blind or vision impaired. To do this the luminous contrast between the Tactile Ground Surface Indicator (TGSI) and adjacent surfaces must be determined. LightLab offers a testing service that satisfies this need by accurately quantifying the surfaces in terms of luminous reflectance or contrast.
Results
Results can be issued using either of the two test methods set out in F3 and F5 of the standard. Using these results the luminous contrast can be determined to prove suitability of materials.Each category and sample type has a defined test report format containing a summary of the test measurements and a pass/fail summary if required by the standard.
Depending on your application:-
F3) Determining luminous reflectance (Yd or Yw) for a material. This result is specific to the product tested, and provides a value that can be used to determine the contrast between it and other known surfaces. This is useful to manufacturers in providing specifications of their product to their customers. Results can be determined for both wet and dry applications.
F5) Measurement of luminous contrast. This is a site specific method, typically the test is carried out under the prevailing lighting and weather conditions.
