Certified Standards for ASTM Test Methods


ISO 17025 Certified Viscosity Reference Standards

 

 

• Manufactured and certified according to ASTM D2162, the primary method for viscosity reference standards

• Supplied with an ISO/IEC 17025 Certification Report

• Fully compliant to ASTM and related test procedures

• Custom standards available


 

Koehler viscosity reference standards are used for calibration and verification of kinematic and dynamic viscosity test equipment, both manual and automatic. All viscosity standards are based upon the National Institute of Standards and Technology (NIST) value of 1.0034 cSt (Centistokes) for water at 20C (68F). All standards are traceable to National Standards and are manufactured and certified according to ASTM D2162, the internationally recognized primary method for viscosity reference standards, under ISO/IEC 17025 guidelines.

The viscosity standards are calibrated to a precision of 0.2% for the viscosity and kinematic viscosity. Nominal or approximate values are listed in the following tables. With each standard, actual certified values for kinematic viscosity (cSt), dynamic viscosity (cP), and density (g/mL) according to ASTM D1480 are provided at each temperature point of calibration along with uncertainty measurements. Each standard is calibrated at a minimum of five temperatures and supplied in a 500mL quantity in an amber-colored bottle complete with full certification and a Material Data Safety Sheet (MSDS).

In addition to the many viscosity standards described in this catalog, we can supply custom viscosity standards made specifically to meet your individual needs including high volume supply used for Statistical Quality Check and Statistical Process Control (SQC/SPC) applications.


Important Information About Viscosity Standards

 

All Koehler certified viscosity standards are Newtonian fluids manufactured from high stability base oils and polybutenes. The standards have an expiration date on the label at least twelve months or longer from the date of purchase. With time, changes resulting from slow oxidation or loss of volatiles may occur. These changes can be minimized by storing the standard in the closed bottle at ambient laboratory temperatures and out of sunlight. The expiration date on the label is part of Koehler’s program of total quality control and is intended to ensure that the standard will be utilized while the certified viscosity data remains valid.


Kinematic Viscosity Reference Standards

 

Approximate Kinematic Viscosity in Centistokes

 

 

Catalog
Number

Visc
Std

20C
68F

25C
77F

37.8C
100F

40C
104F

50C
122F

60C
140F

98.9C
210F

100C
212F

355-004-004

N.4

0.47

0.45

0.41

0.4

355-004-008

N.8

0.95

0.89

0.77

0.75

355-004-001

N1.0

1.3

1.2

1

0.97

355-002-003

S3

4.6

4

3

2.9

2.4

1.2

1.2

355-003-005

D5

7

6.1

4.2

3.4

1.5

355-002-006

S6

10

8.7

6

5.7

4.5

1.9

1.9

355-003-010

D10

14

12

8

7.5

5.8

2.3

2.3

355-004-010

N10

21

17

11

10

7.3

2.7

2.7

355-002-020

S20

43

34

20

18

13

4

3.9

355-004-035

N35

77

59

35

29

20

5.3

5.2

355-002-060

S60

165

121

60

54

35

7.7

7.5

355-004-100

N100

372

268

128

114

70

13

13

355-002-200

S200

672

468

200

181

107

18

17

355-003-500

D500

825

578

226

133

21

355-004-350

N350

1,255

865

371

324

186

28

27

355-003-103

D1000

1,689

1,151

418

236

32

355-002-600

S600

2,184

1,472

600

518

286

37

36

355-004-103

N1000

4,678

3,089

1020

542

350

57

355-002-203

S2000

8,323

5,422

2,000

1,719

889

87

83.3

355-003-503

D5000

8,800

5,700

2,150

1,850

950

88

355-003-752

D7500

13,296

8,609

2,681

1,365

118

355-004-403

N4000

17,889

11,470

3,448

1,720

850

137

355-002-803

S8000

34,931

22,383

8,000

6,710

3,317

242

355-004-153

N15000

79,423

49,714

13,994

6,650

3,000

406

355-002-304

S30000

84,687

28,079

23,570

11,058

628


Saybolt Viscosity Reference Standards

 

 

Catalog
Number

Viscosity
Standard

SUS
100F

SUS
210F

SFS
122C

355-002-020

S20

96.6

355-004-035

N35

152.1

355-002-060

S60

281

355-004-100

N100

592

355-002-200

S200

955

88.2

355-004-350

N350

131.5

355-002-600

S600

174

135.2

355-002-203

S2000

405


Cold-Cranking Simulator Viscosity Standards

 

Approximate Dynamic Viscosity in Centipoise

 

 

Catalog
Number

Viscosity
Standard

-5C
23F

-10C
14F

-15C
5F

-20C
-4F

-25C
-13F

-30C
-22F

-35C
-31F

355-005-010

CL10

1,700

355-005-012

CL12

800

1,600

3,200

355-005-014

CL14

1,600

3,250

7,000

355-005-016

CL16

2,500

5,500

11,000

355-005-019

CL19

1,800

3,500

7,400

17,000

355-005-022

CL22

1,300

2,500

5,100

11,100

355-005-025

CL25

1,800

3,500

7,400

17,200

355-005-028

CL28

1,200

2,500

5,000

9,300

355-005-032

CL32

1,800

3,500

7,300

15,900

355-005-038

CL38

2,900

5,800

13,000

355-005-048

CL48

2,300

4,500

9,500

21,000

355-005-060

CL60

3,700

7,400

15,600

355-005-074

CL74

6,000

11,600


Low Temperature Viscosity Reference Standards

 

 

Catalog
Number

Viscosity
Standard

Viscosities in centipoise
at the following temperatures

355-005-027

N27B

-40, -30, -20, -15, -10, 0F

355-005-115

N115ZB

-20, -15, -10, 0, +10, +20F


High Viscosity Standards (for asphalts & polymers)

 

 

Catalog
Number

Viscosity
Standard

20C
68F

25C
77F

60C
140F

60C
140F

135C
275F

 

 

cP

cP

cP

cSt

cSt

355-004-600

N600

1,400

140

160

12

355-004-103

N1000

2,000

280

350

355-004-203

N2000

4,900

380

440

26

355-004-403

N4000

11,000

730

850

355-004-803

N8000

20,000

1,400

1,600

355-004-153

N15000

41,000

2,600

3,000

355-004-304

N30000

130,000

80,000

4,700

5,400

355-004-623

N62000

200,000

13,000

355-004-154

N150000

420,000

24,000

355-004-194

N190000

900,000

520,000

33,000

355-004-454

N450000

1,600,000

100,000

355-004-275

N2700000

5,300,000

340,000


 

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