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The Parlin Cup
MEETS ASTM D 1084A

  • Viscosity Range of Cups 1 - 4 (7-15000 cs)
  • Accuracy
    • #1 Cup ±3%;
    • #2 Cup ±3%;
    • #3 Cup ±3%;
    • #4 Cup ±5%
  • Meets and exceeds ASTM D 1084 method A and Federal Specifications MMM-A-189C
  • Includes Gardco conversion table relating drain time in seconds to viscosity in centistokes
  • Calibration traceable to NIST standard oils in accordance with ISO 9002
  • Calibration and certification procedures qualify under ANSI/NCSL Z540-1 or MIL-STD-45662A as applicable
Dimensions:
1.50" Dia x 3.687" Tall
without drip well



The Parlin cup was originally developed by the E.I. DuPont de Nemours Company in Parlin, New Jersey, for consistency measurement of cellulosic lacquers. Today this cup is cited in the ASTM designation D 1084 under method A of the Standard Test Methods for viscosity of Adhesives as well as Federal Specification MMM-A-189C. This particular apparatus, though a flow cup for the viscosity determination of Newtonian and near Newtonian materials, differs from the conventional viscosity cup in that the final determination is established at a volumetric point of 50 mL and not the breaking point of the efflux stream upon the completion of draining.

Machined from solid brass the flat bottom of the cup has a press-fitted stainless steel orifice 0.0625 inches long (1.588mm) which is available in four different diameter sizes ranging from 0.070 to 0.250 inches (1.78 to 6.35mm).

 

 

 

Procedure


Bring the sample to be tested and the Gardco/Parlin viscosity cup to a temperature of 23 ±0.5C (73.4 ±0.9F) (preferably in a constant-temperature room). Then mount the viscosity cup in in a suitable clamp holder for this purpose and place the receiving cylinder in position so that the distance from the Parlin cup base is 8" above the base of a low form graduate. With the outlet of the cup closed by means of the finger, pour the sample into the cup until it is filled to overflowing.

Strike off the excess with a straightedge, and then remove the finger from the outlet and allow the sample to flow into a clean, empty 90-100mL graduated glass receiving cylinder. With a stopwatch, determine the number of seconds from the time the finger is removed from the orifice until the top of the meniscus in the receiving cylinder reaches the 50mL mark in the cylinder. Record as the viscosity time of the material.

Note in the case of the high viscosity range #4, formation of air bubbles in the viscosity standard after just one test run makes repeat runs inaccurate unless done at another time. Typically, with heavier bodied liquids, a settling period of 24 hours is necessary for air bubbles to dissipate. With due care, this precaution need not be observed with cups 1, 2 & 3.

Specifications


Cup
Number		 Seconds
Range 		Centistoke
Range 		Midrange
Sensitivity¹ 		Calibration Oil Number/
Centistokes²
1 25 to 110 7 to 165 1.6 G-35/64
2 25 to 120 117 to 582 4.8 G-200/270
3 25 to 110 498 to 2297

20.6

 G-350/1020
4 25 to 110 3445 to 15408 138.9 G-J3000/10800
¹ Stated as Centistokes per secod of efflux time
² Centistoke Values are nominal - actual values printed on labels

 

 

 

Available Items
Item Number Item Description Orifice Centistoke Range
VI-9002 Gardco / Parlin #1 0.070" (1.78mm) 7 - 165 cs
VI-9004

Gardco / Parlin #2

 0.100" (2.54mm) 117 - 582 cs
VI-9006 Gardco / Parlin #3 0.150" (3.81mm) 498- 2297 cs
VI-9008

Gardco / Parlin #4

 0.250" (6.325mm) 3445 - 15408 cs
Viscosity Standards
VI-3810 G-35 Certified Viscosity Standard
VI-3820 G-100 Certified Viscosity Standard
VI-3826 G-350 Certified Viscosity Standard
VI-3842 G-J3000 Certified Viscosity Standard
Recommended Apparatus
LA-9010 Support Stand, 5½" x 9"
LA-9012 Ring Support, 2"
LA-9014 Clamp to 1½" diameter
LA-9020 Clamp Holder fixed Aluminum alloy
LA-7622 Low Form Pyrex Graduate (highly recommended)

 

 

 

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