EMSI Source Testing Department Form 

o Pitot Calibration Procedure (Caliper) ST304-01 

Probe ID Number: 221033 Pitot ID Number: 222030

 NIST Master: 421002 Technician: Nate Traut

Location: Minnesota Date: 2-1-10 Status: Pass

 

Historical Data: F:\ASTM Compliance\ Historical Data\ Pitot/ini

Note: All measurements are in inches. 

Equation 1*: Equation 2*: 

*Equations 1 & 2 are used for both the Transverse and Longitudinal calculations. 

Transverse Tube Axis

 a. 0.972 f. 0.063 

 b. 0.391 

 c. 1.029

 d. 0.380 

 e.

1.034

 g.

0.0

 

 θ 87.1

 θ` 88.4 

Longitudinal Tube Axis 

a. 0.976 

b. 0.576 

c. 1.130

d. 0.587 θ 89.6

e.

1.116 θ` 87.4

Comments: 

cosθ

2

2 2 2

= + −

ab

a b c

Calculate

a

c

e

d

b

0

0'

cos ' 2

2 2 2

= θ + −

ad

a d e

( ) 80° < θ < 100°

f < 1/8"

g < 1/32"

d

b

c

e

0

0'

a

(85° < θ < 95°)

Save Clear Next Find

(85° < θ < 95°)
EMSI Source Testing Department Form 

o Pitot Calibration Procedure (Caliper) ST304-01 

Probe ID Number: 221019 Pitot ID Number: 222019

 NIST Master: 421002 Technician: Nathan Traut

Location: Minnesota Date: 9-8-09 Status: Pass

 

Historical Data: F:\ASTM Compliance\ Historical Data\ Pitot/ini

Note: All measurements are in inches. 

Equation 1*: Equation 2*: 

*Equations 1 & 2 are used for both the Transverse and Longitudinal calculations. 

Transverse Tube Axis

 a. 0.936 f. 0.049 

 b. 0.383 

 c. 1.000

 d. 0.380 

 e.

0.994

 g.

0.0

 

 θ 88.2

 θ` 87.4 

Longitudinal Tube Axis 

a. 0.946 

b. 0.617 

c. 1.101

d. 0.628 θ 86.9

e.

1.117 θ` 88

Comments: 

cosθ

2

2 2 2

= + −

ab

a b c

Calculate

a

c

e

d

b

0

0'

cos ' 2

2 2 2

= θ + −

ad

a d e

( ) 80° < θ < 100°

f < 1/8"

g < 1/32"

d

b

c

e

0

0'

a

(85° < θ < 95°)

Save Clear Next Find

(85° < θ < 95°)
EMSI Source Testing Department Form 

o Pitot Calibration Procedure (Caliper) ST304-01 

Probe ID Number: Pitot ID Number: 222029

 NIST Master: 421002 Technician: Nathan Traut

Location: Minnesota Date: 12-29-09 Status: Pass

 

Historical Data: F:\ASTM Compliance\ Historical Data\ Pitot/ini

Note: All measurements are in inches. 

Equation 1*: Equation 2*: 

*Equations 1 & 2 are used for both the Transverse and Longitudinal calculations. 

Transverse Tube Axis

 a. 0.950 f. 0.069 

 b. 0.379 

 c. 1.021

 d. 0.381 

 e.

1.016

 g.

0.0

 

 θ 89.7

 θ` 88.8 

Longitudinal Tube Axis 

a. 0.951 

b. 0.585 

c. 1.103

d. 0.597 θ 88.5

e.

1.124 θ` 90.1

Comments: Duel head Probe

cosθ

2

2 2 2

= + −

ab

a b c

Calculate

a

c

e

d

b

0

0'

cos ' 2

2 2 2

= θ + −

ad

a d e

( ) 80° < θ < 100°

f < 1/8"

g < 1/32"

d

b

c

e

0

0'

a

(85° < θ < 95°)

Save Clear Next Find

(85° < θ < 95°)
EMSI Source Testing Department Form 

o Pitot Calibration Procedure (Caliper) ST304-01 

Probe ID Number: 221035 Pitot ID Number: 222031

 NIST Master: 421002 Technician: Nate Traut

Location: Minnesota Date: 2-2-10 Status: Pass

 

Historical Data: F:\ASTM Compliance\ Historical Data\ Pitot/ini

Note: All measurements are in inches. 

Equation 1*: Equation 2*: 

*Equations 1 & 2 are used for both the Transverse and Longitudinal calculations. 

Transverse Tube Axis

 a. .858 f. .07 

 b. .386 

 c. .946

 d. .385 

 e.

0.930

 g.

.0

 

 θ 90.8

 θ` 88.3 

Longitudinal Tube Axis 

a. .864 

b. .667 

c. 1.089

d. .663 θ 89.7

e.

1.077 θ` 88.7

Comments: 

cosθ

2

2 2 2

= + −

ab

a b c

Calculate

a

c

e

d

b

0

0'

cos ' 2

2 2 2

= θ + −

ad

a d e

( ) 80° < θ < 100°

f < 1/8"

g < 1/32"

d

b

c

e

0

0'

a

(85° < θ < 95°)

Save Clear Next Find

(85° < θ < 95°)