LT1 Flashcards

1
Q

What solvent do you clean the Auto Freeze Point (ASTM D7153) equipment with?

A

Heptane

Do Not Use Acetone

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2
Q

When running D86 distillation what size aperture do you use for gasoline?

A

38mm aperture

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3
Q

When running D86 distillation what size aperture do you use for diesel?

A

50mm aperture

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4
Q

D86 Distillation - What is the time from initial heat to IBP?

A

Group 1&2 is 5-10 minutes

Group 4 is 5-15 minutes

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5
Q

D86 Distillation - What is the time from IBP to 5%?

A

Group 1&2 is 60-100 seconds

Group 4 is NA

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6
Q

D86 Distillation - What is the time from 5ml residue to FBP?

A

5 minutes max

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7
Q

D86 Distillation - In what group does gasoline with an RVP greater than 9.5psi belong?

A

Group 1

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8
Q

D86 Distillation - In what group does gasoline with an RVP less than 9.5psi belong?

A

Group 2

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9
Q

D86 Distillation - In what group does diesel belong?

A

Group 4

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10
Q

D86 Distillation - What temperature range should group 1 & 2 gasoline be prior to measuring sample?

A

55-65degF

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11
Q

D86 Distillation - How much sample is required to run distillation?

A

100mL

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12
Q

D86 Distillation - Group 1 & 2 samples should be conditioned to what temperature before sample is run?

A

Less than 50degF

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13
Q

D86 Distillation - Your percent loss should not be over what?

A

3.1% vol

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14
Q

Gravity - Density equals?

A

g/mL or g/cm3

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15
Q

Gravity - What is the common API temperature that we report at?

A

60degF or 15degC

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16
Q

What samples are tested in Pour Point by Phase?

A

Diesel products

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17
Q

What samples are tested in Auto Freeze Point by Phase?

A

Jet or Kero products

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18
Q

Pour and Cloud is reported in what increments?

A

To the nearest 1degF

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19
Q

Freeze point is reported in what increments?

A

To the nearest 0.1degC

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20
Q

What size sample is used for Freeze point by ISL?

A

10mL sample

Rinse twice with 10mL sample

When running sample dispense the sample into the test cell STOPPING at the 2mL mark

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21
Q

D86 Distillation - What should the average rate of condensation be from 5% recovered to 5mL in flask?

A

4-5 mL/min

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22
Q

Baume gravity should be checked at what temperature?

A

60-75degF

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23
Q

What grit paper do you use for initial copper strip preparation?

A

150 grit followed by 220 grit

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24
Q

What is used for final polishing of a copper strip?

A

120-150 grit silicon carbide grain/powder

25
Q

How much sample do you use for a corrosion test?

A

30mL sample

26
Q

In what temperature and for how long do you run corrosion on a Jet/Alky sample?

A

212degF for 2 hours

27
Q

In what temperature and for how long do you run corrosion on a Diesel sample?

A

122degF for 3 hours

28
Q

What size test tube do you use for corrosion tests?

A

25 by 150mm tube

29
Q

In what temperature and for how long do you run corrosion on a LPG sample?

A

100degF for 1 hour

30
Q

Before testing for Haze or Workmanship what temperature should sample be at?

A

70degF

31
Q

How full must your sample bottle be in order to run an RVP?

A

70-80%

32
Q

What is used to run QC on the RVP?

A

Pentane

Run each shift for product certification and once daily for other units

Pentane QC target is 15.29

33
Q

What do you use to clean the RVP machine?

A

Toluene and Isopropanol

34
Q

When running an RVP, what temperature must the sample be?

A

32-34degF

35
Q

Describe preparation steps for an RVP

A

Chill to 32-34degF

Preaerate sample - remove some sample if over 80%

Return to bath for 2 minutes

Aerate bottle again, then shake vigorously and return to ice bath for 2 minutes.

Aerate bottle again, then shake vigorously and return to ice bath for 2 minutes.

Aerate bottle again, then shake vigorously and return to ice bath for 2 minutes.

Remove from ice bath and run RVP test.

36
Q

What cell size is used for ASTM color?

A

33mm

37
Q

What cell size is used for Saybolt color and the Platinum Cobalt color?

A

100mm

38
Q

What is the Saybolt color range?

A

-16 to +30

39
Q

What is the ASTM color range?

A

0 to 8

40
Q

What is the Platinum Cobalt color range?

A

0 to 100

41
Q

In what increments is the ASTM color reported?

A

Samples will be reported as either whole numbers or 0.5 increments

42
Q

In what increments is the Saybolt or Platinum Cobalt color reported?

A

Nearest whole number

43
Q

Platinum Cobalt is a requirement for what product?

A

BTX products

44
Q

Saybolt color is a requirement for what product?

A

Jet fuels

Kero/Alki

45
Q

ASTM color is a requirement for what product?

A

ULSD

Diesel/Lubes

46
Q

Who designed the QC Plus software?

A

Baytek

47
Q

What grit paper do you use for initial silver strip preparation?

A

240 grit

48
Q

What is used for final polishing of a silver strip?

A

105 micron silicon carbide grain

49
Q

What is FID

A

Flame Ionization Detector (Used to detect boiling point)

50
Q

The D2887 is a gas chromatograph used to determine boiling points in what temperature range?

A

1000degF or below

51
Q

What is the wash solvent for the 2887?

A

Carbon Disulfide (CS2)

52
Q

What is IICAR?

A

Incident Investigation and Corrective Action Report

53
Q

What is OOC?

A

Out of Control

54
Q

What is EWMA?

A

Exponentially Weighted Moving Average

55
Q

What is ARV?

A

Assigned Reference Value

56
Q

What is ILCP?

A

Inter Laboratory Cross Check Programs

57
Q

What is SQC?

A

Statistical Quality Control

58
Q

How often are Round Robins completed?

A

ASTM is done monthly and the Spectrum is done quarterly.