MISCO Digital Handheld Refractometer

Refractometer for Testing Gas Treatment Chemicals

Testing initial amine or glycol concentration is essential to ensure optimal fluid properties.

Petrochemical plants, refineries, and others rely on amine gas scrubbing or sweetening to remove acid gasses, such as hydrogen sulfide (H2S) and carbon dioxide (CO2). The process most commonly depends on the use of water-soluble chemicals known as alkylamines, or simply amines. These amines include Diethanolamine (DEA), Monoethanolamine (MEA), Methyldiethanolamine (MDEA), and Diglycolamine (DGA), frequently blended with certain additives. The process is intended to mitigate human health hazards, processing plant delays, pipeline damage, and environmental harm.

Testing the initial amine concentration is essential to ensure optimal fluid performance. Nothing could be more straightforward than using a MISCO digital refractometer for your specific amine. We have several different amine scales from which to choose.

Likewise, natural gas processing plants use triethylene glycol, diethylene glycol, ethylene glycol, and tetraethylene glycol to eliminate water from natural gas. The process, known as glycol dehydration, depends on the glycol’s ability to act as a desiccant.

Pre-Configured Refractometers

Easy Order: Here are a few popular scale combinations and refractometer models for chemical testing. If you require different programming, you can mix and match scales through the Flexible Custom Programming section below, or call customer service for assistance:

Flexible Custom Programming Options

MISCO Palm Abbe Digital Refractometers can be custom-programmed with up to 5 scales to your exact specifications. There are two easy online options to create your customized units from hundreds of measurement scales:

“Build Your Own” Tool

  1. Use the Industry, Application and Fluid filters to quickly find your scales.
  2. Click scale boxes to add scales to your device.
  3. Select Accessories
  4. Add To Cart

Order Refractometer by Scale#

  1. Browse the refractometer scale options in the dropdown tabs below and record the scale numbers you want.
  2. Type in your scale numbers on the Order by Scale# page.
  3. Select Accessories
  4. Add To Cart
Amine Treatment

Diglycolamine (Huntsman) % w/v

Scale# 340
UoM: % w/v
Range: 0 to 100
Resolution: 0.1
Precision: 0.25

Gas Spec CS-1110 % w/w

Scale# 743
UoM: % w/w
Range: 0 to 80
Resolution: 1
Precision: 3

GAS/SPEC CS-1 % w/w

Scale# 700
UoM: % w/w
Range: 0 to 100
Resolution: 1
Precision: 3

GAS/SPEC CS-1160 % w/w

Scale# 699
UoM: % w/w
Range: 0 to 100
Resolution: 1
Precision: 3

GAS/SPEC CS-2020 % w/w

Scale# 695
UoM: % w/w
Range: 0 to 90
Resolution: 1
Precision: 3

GAS/SPEC SS (MDEA)

Scale# 721
UoM: % w/w
Range: 0 to 90%
Resolution: 1
Precision: 3

MDEA/DEA Blend % w/w

Scale# 701
UoM: % w/w
Range: 0 to 90
Resolution: 1
Precision: 3

Methyldiethanolamine % w/w

Scale# 592
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: .2

SG-3500 % w/w

Scale# 696
UoM: % w/w
Range: 0 to 100
Resolution: 1
Precision: 3

UCARSOL AP-802 % w/w

Scale# 725
UoM: % w/w
Range: 0 to 100
Resolution: 1
Precision: 3
Glycol Dehydration

DEG Boil 760 mm Hg

Scale# 588
UoM: Boiling Point 760 mm Hg
Range: 100 to 180
Resolution: 1
Precision: 2

Diethylene Glycol % v/v

Scale# 045
UoM: % v/v
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

Diethylene Glycol % w/w

Scale# 046
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: 0.1

Diethylene Glycol (D60/60 °F)

Scale# 049
UoM: Specific Gravity (D60/60)
Range: 1.0000 to 1.1184
Resolution: 0.0001
Precision: 0.0001

Diethylene Glycol (H20 % w/w)

Scale# 591
UoM: % Water w/w
Range: 100 to 0
Resolution: 0.1
Precision: .1

Diethylene Glycol Freeze °C

Scale# 048
UoM: Freeze Point °C
Range: 0 to -45
Resolution: 1
Precision: 1

Diethylene Glycol Freeze °F

Scale# 047
UoM: Freeze Point °F
Range: +32 to -49
Resolution: 1
Precision: 2

Triethylene Glycol % v/v

Scale# 382
UoM: % v/v
Range: 0 to 100
Resolution: 0.1
Precision: 0.12

Triethylene Glycol % w/w

Scale# 383
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: 0.12

Triethylene Glycol (D 20/20)

Scale# 386
UoM: Specific Gravity (D 20/20)
Range: 1.000 to 1.1255
Resolution: 0.0001
Precision: 0.0002

Triethylene Glycol (g/cm3)

Scale# 387
UoM: Density (g/cm3)
Range: 0.998 to 1.1235
Resolution: 0.0001
Precision: 0.0002

Triethylene Glycol (H20 % w/w)

Scale# 692
UoM: % w/w
Range: 0 to 100
Resolution: 0.1
Precision: .12

Triethylene Glycol Freeze °C

Scale# 385
UoM: Freeze Point °C
Range: 0 to -35
Resolution: 1
Precision: 0.25

Triethylene Glycol Freeze °F

Scale# 384
UoM: Freeze Point °F
Range: +32 to -31
Resolution: 1
Precision: 0.5

Refractometer Platform Choices

Inline-Process Refractometer:

The above scales are also available on any MISCO inline process refractometer or concentration sensors. They are made for continuous concentration measurement of process fluids.

MISCO Handheld Digital Refractometer:

MISCO has the most extensive refractometer scale library on the planet. Don't see what you want? Browse by handheld refractometer model or by refractometer application. Or give us a call. We can help!

From our Q&A Forum

Gas Treatment (4)

Can the Palm refractometer be used to check Trieythelene Glycol?

Thanks for your question. The Palm Abbe digital refractometer can measure several triethylene glycol (TEG) physical properties including, percent by weight, percent by volume, freeze point, specific gravity, density, and boiling point.

I am wanting to find out if you have a handheld meter that can measure: TEG EG DEG PG MEA DEA DGA Any assistance that you can provide would be greatly appreciated.

Scales are currently available for the Palm Abbe digital refractometer that can measure EG (ethylene glycol), PG (propylene glycol), TEG (triethylene glycol), DEG (diethylene glycol), MEA (Monoethanolomine), DEA (Diethanolomine), and DGA (Diglycolamine). Please contact MISCO customer service for details on ordering, or see the Build-Your-Own section of our website.

We are interested in determining the level of ethylene glycol and triethylene glycol in the field and wonder if the PA203 is suitable to do that.

Yes, scales are available for the Palm Abbe digital refractometer for measuring both ethylene glycol (EG) and triethylene glycol (TEG). TEG scales are available for measuring percent by volume, percent by weight, freeze point, specific gravity (D20/20), and density. The same scales are available for ethylene glycol plus boiling point and percent water content. You can mix and match any five of these scales in the Palm Abbe PA203.

I have a gas dehydration system which used TEG. Typical concentrations of Tri-ethylene Glycol (TEG) vary from 88% to 98%. Do you have a device that could measure the concentration of TEG to within +/- 0.5%. The typically impurities are 1) water ( 2-12%) and 2) oil (300- 1000 ppm). Thanks in advance.

No problem. Our Palm Abbe digital refractometer can measure the percent concentration of triethylene glycol (TEG) in your dehydration system from 0 to 100 percent (+/- 0.1%). You can choose a scale for TEG percent by concentration or TEG percent water. The oil contaminate should not be a problem because the refractometer only measures in the parts per thousand (ppt) range, not in parts per million.