REFLECT
any wavelength

Spectralon Diffuse
Reflectance Standards®

High Lambertian reflectance over their effective spectral range

Accurate
Spectralon Diffuse Reflectance Standards
offer the highest diffuse reflectance values ofany known substance. These durable, chemicallyinert standards can have typical reflectance values
ranging from 2% to 99% and are spectrally flat over
the UV-VIS-NIR spectrum. All Spectralon materials
are optically flat to +/- 4% over the photopic regionof the spectrum.
Spectralon Diffuse Reflectance Standards
are Lambertian, with Spectralon SRM-99
reflectance material being the most Lambertianreflector available for use over the wavelength
range from 250 - 2500 nm.

Advancing the Technology of Light: Measure. Create. Reflect.

Consistent
All reflectance calibration tests are performedin the Reflectance Spectroscopy Laboratory atLabsphere. The standards used in these tests
are directly traceable to the National Institute ofStandards and Technology (NIST).
Spectralon Diffuse Reflectance Standards areavailable individually and in sets, consisting of adiffuse white standard and a selection of diffuse
gray standards. Each standard is supplied withcomplete diffuse reflectance data from 250 - 2500,
every 50 nm. All standards are housed in a durable
delrin holder with a protective cover.

sales@labsphere.com

www.labsphere.com© 2019 Labsphere, Inc. All Rights Reserved
PB-13058-000 Rev 01

Value• Calibrated Spectralon standards accredited
under NVLAP ISO 17025 Lab Code 200951-0• Highly Lambertian• Durable• Chemically inert

Hemispherical Spectral Reflectance Factors

Applications• Densitometers• Integrating sphere systems• Optical equipment• Photographic equipment• Reflectometers• Remote sensing instruments

Advancing the Technology of Light: Measure. Create. Reflect.

sales@labsphere.com

www.labsphere.com© 2019 Labsphere, Inc. All Rights Reserved
PB-13058-000 Rev 01

Specifications and Ordering Information			
Diffuse Reflectance Standards are available in sets of four or eight standards in either 1.25 or 2.00 inch diameters.
A set of four standards includes one each of the following reflectance values: 99%, 75%, 50% and 2%. A set of eightstandards includes one each of the following reflectance values: 99%, 80%, 60%, 40%, 20%, 10%, 5% and 2%.
Set Model
NumberStandards
Included

OrderNumber

Reflectance
FactorReflective Area
Dimensions(Inches)		(Inches)

RSS-04-010 		
SRS-99-010
SRS-75-010
SRS-50-010
SRS-02-010

AS-01163-060
AS-01160-060
AS-01160-260
AS-01160-460
AS-01161-960

99%
75%
50%
2%

1.25 D 		1.50 D x 0.55 H
1.25 D 		1.50 D x 0.55 H
1.25 D 		1.50 D x 0.55 H
1.25 D 		1.50 D x 0.55 H

RSS-04-020		
SRS-99-020
SRS-75-020
SRS-50-020
SRS-02-020

AS-01165-060
AS-01161-060
AS-01161-260
AS-01161-460
AS-01161-960

99%
75%
50%
2%

2.00 D 		2.38 D x 0.60 H
2.00 D 		2.38 D x 0.60 H
2.00 D 		2.38 D x 0.60 H
2.00 D 		2.38 D x 0.60 H

RSS-08-010		
SRS-99-010
SRS-80-010
SRS-60-010
SRS-40-010
SRS-20-010
SRS-10-010
SRS-05-010
SRS-02-010

AS-01163-160
AS-01160-060
AS-01160-160
AS-01160-360
AS-01160-560
AS-01160-660
AS-01160-760
AS-01160-860
AS-01160-960

99%
80%
60%
40%20%10%5%2%1.25 D 		1.50 D x 0.55 H
1.25 D 		1.50 D x 0.55 H
1.25 D 		1.50 D x 0.55 H
1.25 D 		1.50 D x 0.55 H
1.25 D 		1.50 D x 0.55 H
1.25 D 		1.50 D x 0.55 H1.25 D 		1.50 D x 0.55 H
1.25 D 		1.50 D x 0.55 H

RSS-08-020		
SRS-99-020
SRS-80-020
SRS-60-020
SRS-40-020
SRS-20-020
SRS-10-020
SRS-05-020
SRS-02-020

AS-01165-160
AS-01161-060
AS-01161-160
AS-01161-360
AS-01161-560
AS-01161-660
AS-01161-760
AS-01161-860
AS-01161-960

99%
80%
60%
40%
20%
10%
5%
2%

2.00 D 		2.38 D x 0.60 H
2.00 D 		2.38 D x 0.60 H
2.00 D 		2.38 D x 0.60 H
2.00 D 		2.38 D x 0.60 H
2.00 D 		2.38 D x 0.60 H
2.00 D 		2.38 D x 0.60 H
2.00 D 		2.38 D x 0.60 H
2.00 D 		2.38 D x 0.60 H

Individual Diffuse Reflectance Standard

Custom Reflectance Standards

Diffuse Reflectance Standards are available individually(1.25 or 2.00 inch diameter) in the following reflectance values:
99%, 80%, 75%, 60%, 50%, 40%, 25%, 20%, 10%, 5%
and 2%.

Spectralon Diffuse Reflectance Standards are available
on custom order with reflectance properties to meet yourspecific needs. Please contact our Technical Sales
Department for details.

Advancing the Technology of Light: Measure. Create. Reflect.

sales@labsphere.com

www.labsphere.com© 2019 Labsphere, Inc. All Rights Reserved
PB-13058-000 Rev 01