Are these tubes 40ul?

They are standard capillary tubes

Is it the 'receptacle' that has one open end or the tubes themselves that each have an open end? Or is it both??

The tubes themselves have only one open end and the the vial they come in has a hole in the top

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Description

🔥 Elevate your lab game with precision & durability! 🧪

AUTOCLAVABLE HEAT RESISTANT - Withstands extreme lab conditions up to 820°C softening point without compromising integrity.
CONVENIENT DISPENSER CONTAINER - Innovative single-tube access design minimizes contamination and maximizes efficiency.
TRUSTED QUALITY FROM EISCO LABS - Manufactured under strict quality control with premium raw materials for consistent performance.
PRECISION ENGINEERED BOROSILICATE GLASS - Ensures superior chemical durability and thermal shock resistance for reliable lab results.
OPTIMIZED 4 INCH LENGTH WITH 0 05 INCH DIAMETER - Perfectly sized for accurate melting point determination and other precise measurements.

Eisco Labs Borosilicate Glass Capillary Tubes are 4 inches long with a 0.05-inch outside diameter, designed for precise melting point analysis. Packaged in a smart dispenser container for easy single-tube access, these tubes are autoclavable and withstand extreme temperatures up to 820°C. Crafted from premium borosilicate glass, they offer exceptional chemical resistance and durability, making them an essential tool for professional laboratories.

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Manufacturer	EISCO
Part number	CH0882B
Item Weight	22.7 g
Product Dimensions	15.24 x 10.16 x 10.16 cm; 22.68 g
Is Discontinued By Manufacturer	No
Material	Glass Borosilicate Glass
Batteries Included	No
Batteries Required?	No
Item Dimensions LxWxH	15.2 x 10.2 x 10.2 cm

Eisco Labs Borosilicate Glass Capillary Fused Tube Container with 1 Open End

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