TERMIUM Plus®

From: Translation Bureau

On social media

Consult the Government of Canada’s terminology data bank.

REFLECTANCE STANDARD [9 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2012-02-20

English

Subject field(s)
  • Optical Instruments
  • Optics
  • Pulp and Paper
OBS

photometer: A device for measuring light intensity.

CONT

The whiteness of pulp is measured by its ability to reflect monochromatic light in comparison to a known standard.... The instrument most commonly used is the Zeiss Elrepho reflectance meter which provides a diffuse light meter.

French

Domaine(s)
  • Instruments d'optique
  • Optique
  • Pâtes et papier
DEF

Appareil à réflectance servant à mesurer des intensités lumineuses.

Spanish

Save record 1

Record 2 2011-03-09

English

Subject field(s)
  • Photography
OBS

A [color specification] system that specifies colors by the amount of each of the primary colors required to match a given sample. A spectrophotometric curve of each sample color is produced to specify hue(dominant wavelength), saturation(excitation purity) and brightness(luminous reflectance or transmittance). The system provides a scientific standard for the measurement of color.(CIE=Commission internationale de l'éclairage-International Commission on Illumination.).

Key term(s)
  • CIE system

French

Domaine(s)
  • Photographie
OBS

Système qui détermine les couleurs d'après la quantité de chacune des couleurs primaires nécessaire pour composer la couleur d'un échantillon donné. Une courbe spectrophotométrique est tracée pour chaque échantillon de couleur pour déterminer la tonalité (longueur d'onde prédominante), la saturation (pureté colorimétrique) et la luminance (facteur de luminance et de transmission). Le système constitue un étalon scientifique de mesure de la couleur (C.I.E. = Commission internationale de l'éclairage).

Key term(s)
  • système de la CIE

Spanish

Save record 2

Record 3 - external organization data 2009-08-04

English

Subject field(s)
  • Compartment - ISO/IEC JTC 1 Information Technology Vocabulary
Universal entry(ies)
02.02.07 (19762)
ISO/IEC standard entry number
DEF

ratio of the reflected radiant or luminous flux to the incident flux in incident radiation of given spectral composition, polarization and geometrical distribution [IEC 50 (845), 845-04-58]

OBS

Reflectance (sometimes in AIDC techniques called reflectance factor) is measured on a scale of 0 to 1, at a wavelength or bandwidth of light (spectral response) specified in the particular application specification.

OBS

Barium sulphate or magnesium oxide are used as ’near perfect’ reference white standards(a perfect standard of pure white would have a reflectance of 1, 00 at any wavelength of light). The absence of any light in a vacuum is used as reference black standard.

OBS

Samples (such as substrates, inks, etc.) are tested against the standards under similar illumination.

OBS

reflectance: term and definition standardized by ISO/IEC [ISO/IEC 19762-2:2008].

French

Spanish

Save record 3

Record 4 - external organization data 2009-08-04

English

Subject field(s)
  • Compartment - ISO/IEC JTC 1 Information Technology Vocabulary
Universal entry(ies)
02.02.04 (19762)
ISO/IEC standard entry number
DEF

device used for verification of a symbol

OBS

A verifier is used to measure and analyse quality attributes of a symbol such as symbol element width and quiet zone dimensions, reflectance, and other aspects against a standard to which the linear bar code and two-dimensional symbols should conform.

OBS

verifier: term and definition standardized by ISO/IEC [ISO/IEC 19762-2:2008].

French

Spanish

Save record 4

Record 5 2007-03-13

English

Subject field(s)
  • Simulation (Cybernetic Systems)
  • Intelligence (Military)
  • Physical Geography
  • Surveillance, Detection and Reconnaissance (Military)
CONT

DFAD is a standard NIMA [National Imagery and Mapping Agency] product that supports radar return simulation, navigation and terrain obstruction studies. When combined with DTED [Digital Terrain Elevation Data], DFAD provides an off-line data base for use by weapon system flight simulators and other types of simulation, such as line of sight, obstruction and perspective view development. It portrays major natural and man-made features on the Earth's surface; the features and associated attributes of which are generally of radar reflectance significance. Content is derived from both cartographic and photo-grammetric source material.

French

Domaine(s)
  • Simulation (Systèmes cybernétiques)
  • Renseignement (Militaire)
  • Géographie physique
  • Surveillance, détection et reconnaissance (Militaire)
Key term(s)
  • données d'analyse des caractéristiques numériques

Spanish

Save record 5

Record 6 2004-03-18

English

Subject field(s)
  • Photography
DEF

A card with an 18 percent gray tint (reflectance) used to determine exposure by taking a meter reading from subject light reflected by the card.

CONT

Neutral test card. A panel, usually with an 18% reflectance gray surface on one side and a 90% reflectance white surface on the other. Such a card is useful as a standard object for light measurement in estimating the required camera settings, and also for checking color balance in color images.

Key term(s)
  • grey card

French

Domaine(s)
  • Photographie
DEF

Carte gris neutre [...] dont la réflexion est de 18 %, ce qui correspond à un sujet moyen.

OBS

On la place devant le sujet et on mesure la lumière qu'elle réfléchit, cette méthode permettant de faire abstraction de la couleur du sujet, de son éventuel aspect composite ou très contrasté ou de l'influence des sources d'éclairage.

Spanish

Save record 6

Record 7 2000-09-26

English

Subject field(s)
  • Radiological Physics (Theory and Application)
  • Food Industries
CONT

Analyses of whole or ground grain by physical methods would be better suited to handling large numbers of samples, as in protein segregation of carlots, or continuous monitoring as in loading an export cargo. Such procedures are now known and include near infrared reflectance(NIR) and near infrared transmission spectroscopy. NIR instruments have been in use for protein segregation in Canadian terminal elevators since 1975. The accuracy and precision of these instruments are equivalent to most of the standard methods of protein analysis including the Kjeldahl. NIR instruments are the most recent introduction to protein testing. They are very rapid and do not require the grain to be ground. An additional advantage of these instruments is their capacity for similarly determining moisture as well as protein. The accuracy of NIR instruments seems adequate for protein segregation.

French

Domaine(s)
  • Physique radiologique et applications
  • Industrie de l'alimentation
CONT

Les analyses de grain entier ou moulu par des méthodes physiques conviendraient mieux aux échantillons multiples (triage de wagons de grain selon la teneur en protéines, contrôle continu comme dans le chargement d'une cargaison pour l'exportation). Il en existe aujourd'hui, notamment la spectroscopie de réflection ou de transmission dans le proche infrarouge. On se sert de spectroscopes de réflection dans le proche infrarouge depuis 1975, dans les silos des ports canadiens. La précision et l'exactitude des mesures équivalent à celles de la plupart des méthodes courantes de dosage, y compris la méthode Kjeldahl. Les spectroscopes constituent ce qu'il y a de plus récent pour le dosage des protéines. La méthode est très rapide et n'exige pas que le grain soit moulu; en outre, l'appareil permet de doser l'eau de la même façon. La précision des spectroscopes de transmission dans le proche infrarouge semble convenir à la ségrégation des protéines.

Spanish

Save record 7

Record 8 1998-08-19

English

Subject field(s)
  • Federal Government Bodies and Committees (Canadian)
OBS

This laboratory is equipped with a range of microscopes, including standard petrological microscopes for determining thermal maturity(including vitrinite reflectance and fluorescence) and organic facies, for interpreting the origin of pyrobitumens, for measuring homogenization temperatures, and for investigating hydrocarbon fluid inclusions. Geological Commission of Canada.

French

Domaine(s)
  • Organismes et comités fédéraux (Gouvernement canadien)
OBS

Ce laboratoire est équipé d'une gamme de microscopes, notamment de microscopes pétrologiques standard permettant de déterminer la maturité thermique (y compris la réflectance et la fluorescence de la vitrinite) et les faciès organiques, d'interpréter l'origine des pyrobitumes, de mesurer les températures d'homogénéisation et d'étudier les inclusions fluides d'hydrocarbures. Commission géologique du Canada.

Spanish

Save record 8

Record 9 1994-11-23

English

Subject field(s)
  • Optics
  • Mining of Organic Materials
DEF

Polished surface of a material of known reflectance which is used for calibrating reflectance measuring equipment.

OBS

Term standardized by ISO.

French

Domaine(s)
  • Optique
  • Exploitation de matières organiques (Mines)
DEF

Surface polie d'un matériau de réflectance connue, utilisée pour étalonner l'équipement de mesurage du pouvoir réflecteur.

OBS

Terme normalisé par l'ISO.

Spanish

Save record 9

Copyright notice for the TERMIUM Plus® data bank

© Public Services and Procurement Canada, 2026
TERMIUM Plus®, the Government of Canada's terminology and linguistic data bank
A product of the Translation Bureau

Display options

Change the order of display of the official languages of Canada
Option to display the non-official languages (Spanish or Portuguese)
Display definitions, contexts, etc., on records

Features

GCtranslate (available on the Government of Canada network only)

Use this artificial intelligence prototype to translate Government of Canada content up to and including Protected B. Available to employees of selected departments and agencies only.

Writing tools

The Language Portal’s writing tools have a new look! Easy to consult, they give you access to a wealth of information that will help you write better in English and French.

Glossaries and vocabularies

Access Translation Bureau glossaries and vocabularies.

Date Modified: