Spectralon® Diffuse ReflectanceStandards
High Lambertian reflectance over their effective spectral range
Hemispherical Spectral Reflectance Factors for Spectralon Standards

Consistent
All reflectance calibration tests are performed in theReflectance Spectroscopy Laboratory at Labsphere.
The standards used in these tests are directly traceable
to the National Institute of Standards and Technology(NIST).
Spectralon Diffuse Reflectance Standards are available
individually and in sets, consisting of a diffuse white
standard and a selection of diffuse gray standards. Eachstandard is supplied with complete diffuse reflectancedata from 250 - 2500, every 50 nm. All standards arehoused in a durable delrin holder with a protective
cover.

AccurateSpectralon® Diffuse Reflectance Standards can offer the highest diffuse
reflectance values of any known substance. These durable, chemically inert
standards can have typical reflectance values ranging from 2% to 99% and arespectrally flat over the UV-VIS-NIR spectrum. All Spectralon materials are opticallyflat to +/- 4% over the range of 250 - 2500 nm and +/- 1% over the photopic
region of the spectrum.
Spectralon Diffuse Reflectance Standards are highly Lambertian, with Spectralon
SRM-99 reflectance material being the most Lambertian reflector available for use
over the wavelength range from 250 - 2500 nm.

Calibrate:
Densitometers
Integrating Sphere Systems
Optical Equipment
Photographic Equipment
Reflectometers
Remote Sensing Instruments

Labsphere, Inc. • 231 Shaker St. • North Sutton, NH 03260 • USA • Tel: +1 (603) 927-4266 • www.labsphere.com

Specifications
Set Part
Numbers
RSS-04-010

Standards
Included
SRS-99-010
SRS-75-010
SRS-50-010
SRS-02-010

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

Order
Numbers
AS-01163-060
AS-01160-060
AS-01160-260
AS-01160-460
AS-01161-960
AS-01165-060
AS-01161-060
AS-01161-260
AS-01161-460
AS-01161-960
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
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

Reflectance
FactorReflective Area
(Inches)

Dimensions(Inches)

99%
75%
50%
2%

1.25 D
1.25 D
1.25 D
1.25 D1.50 D x 0.55 H
1.50 D x 0.55 H
1.50 D x 0.55 H
1.50 D x 0.55 H

99%
75%
50%
2%

2.00 D
2.00 D
2.00 D
2.00 D2.38 D x 0.60 H
2.38 D x 0.60 H
2.38 D x 0.60 H
2.38 D x 0.60 H

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

1.25 D
1.25 D
1.25 D1.25 D
1.25 D
1.25 D
1.25 D
1.25 D1.50 D x 0.55 H
1.50 D x 0.55 H
1.50 D x 0.55 H
1.50 D x 0.55 H
1.50 D x 0.55 H
1.50 D x 0.55 H
1.50 D x 0.55 H
1.50 D x 0.55 H

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

2.00 D
2.00 D
2.00 D
2.00 D
2.00 D
2.00 D
2.00 D
2.00 D2.38 D x 0.60 H
2.38 D x 0.60 H
2.38 D x 0.60 H
2.38 D x 0.60 H
2.38 D x 0.60 H
2.38 D x 0.60 H
2.38 D x 0.60 H
2.38 D x 0.60 H

Diffuse Reflectance Standard Sets
Diffuse Reflectance Standards are available in sets of four or eight standards in either 1.25 or 2.00 inch diameters. A setof four standards includes one each of the following reflectance values: 99%, 75%, 50% and 2%. A set of eight standards
includes one each of the following reflectance values: 99%, 80%, 60%, 40%, 20%, 10%, 5% and 2%.

Individual Diffuse Reflectance Standard
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%.

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

Labsphere, Inc. • 231 Shaker St. • North Sutton, NH 03260 • USA • Tel: +1 (603) 927-4266 • www.labsphere.com
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