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Pyrex 8200-100 Conical-Bottom Glass Centrifuge Tubes, 100 mL, for Oil Testing

Pyrex  |   Mfr# 8200-100  |   Item# EW-34731-01

$144.00 USD/EACH

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    Tubes are manufactured from Pyrex® brand borosilicate glass for greater strength and clarity. Manufacturing process ensures that tubes are strengthened at stress points.
    Note: To minimize the risks of tube breakage, use the proper adapters or cushions in centrifuge rotors.
    Product Type Conical-bottom Tubes
    Description Pear-shaped for oil testing
    Dimensions (OD (mm)) 58
    Dimensions (L (mm)) 158
    Capacity (mL) 100
    End type Conical
    Graduations White enamel
    Qty/ea 1
    Material Glass
    Model 8200-100
    Manufacturer number 8200-100
    Brand Pyrex

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    Questions and Answers

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    Get answers from real customers and in-house experts with AnswerBox.

    3 Questions | 3 Answers
    Displaying questions 1-3
    • Q:

      What is the diameter of the narrow end of the tube (bottom as shown in photo)?
      Asked on 9/23/2013 by Don

      1 answer



        The ID of the bottom tube will be approximately 6.5 to 7.5 mm with a wall thickness of 1.0 to 1.75 mm.

        Answered on 9/24/2013 by Jose from Technical Support
    • Q:


      I am currently using this kind of tube to separate solids by centrifugation. Is there an advised tool to clean the tube without damaging the inside surface of the tube?
      Asked on 4/24/2012 by Anonymous

      1 answer

      • Staff Reviewer


        Brush set, part number 84552-00, is made of foam as to not risk the chance of scratching the glass with any metal parts. In this set there is also a long thin brush that will work well for cleaning out the tip.

        Answered on 4/26/2012 by Jen from Technical Support
    • Q:

      How about the stopper for this product (KH-34731-01) ? I do'nt know Stopper Catalog number. Please provide me.

      Asked on 6/11/2009 by Rahel from Soroako, Indonesia

      1 answer

      • Staff Reviewer


        A Size 1 stopper would fit this flask.

        Answered on 11/15/2010 by Jen from Technical Support
    Displaying questions 1-3

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    Product Reviews


    by PowerReviews
    Conical-Bottom Glass Centrifuge Tubes, 100 mL, for Oil Testing

    (based on 1 review)

    Reviewed by 1 customer

    Displaying review 1

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    (1 of 1 customers found this review helpful)


    Too thin now- breaks easy

    By China man

    from lakeland, Fl

    About Me Academic/Professional Researcher

    Verified Buyer


    • Accurate
    • Easy To Use
    • Well Calibrated
    • Works Properly


    • Breaks Easily

    Best Uses

    • In The Field
    • In The Lab
    • Research

    Comments about Conical-Bottom Glass Centrifuge Tubes, 100 mL, for Oil Testing:

    The weight of these use to be 65-75 grams, now they are 40-45 grams (less glass). They seem to break easier now. Weight down but price the same?

    Displaying review 1

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