Transparent Pyrex Glass Blowing Tubes Long Thick Wall Test Tu~m'

EUR 6,18 Achat immédiat, EUR 0,82 Livraison, 30-Jour Retours, Garantie client eBay
Vendeur: malphite-b ✉️ (3.407) 97.1%, Lieu où se trouve: Shanghai, CN, Lieu de livraison: EUROPE, Numéro de l'objet: 155330585989 Transparent Pyrex Glass Blowing Tubes Long Thick Wall Test Tu~m'.



Outside diameter: 15mm  Length :120mm/150mm/180mm Thick Wall: 1mm Material: glass Color: transparent
Fire polished ends on Both Sides. Durable in use. Fire polished ends on Both Sides. Used as the reaction vessel in a small amount of reagent and used in room temperature or heat. The Pyrex Glass has low thermal expansion coefficient that is about a third of ordinary glass. Resistant to high temperatures(About up to 200 degrees)
Package Includes : 10 x Tubes
Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.
Precautions for use:: 1.Do not exceed 1/2 of the test tube capacity when filling the solution, and not exceed 1/3 of the test tube capacity when heating. 2. When dripping liquid into the test tube with a dropper, it should be suspended in the air, and it should not be extended into the test tube mouth. 3. To take the blocky solid, use tweezers to hold it to the test tube mouth, and then slowly erect the test tube to slide the solid into the bottom of the test tube. Do not allow the solid to fall directly to prevent the bottom of the test tube from breaking. 4.Use test tube clamps for heating, and the test tube mouth should not face people. When heating the test tube containing the solid, the mouth of the tube is slightly downward, and when the liquid is heated, it is inclined about 45°. 5.The heating should be uniform to avoid bumping or tube explosion. 6. After heating, it cannot be quenched to prevent cracking. 7.Preheat when heating to prevent the test tube from bursting due to sudden heat. 8. When heating, keep the outer wall of the test tube free of water droplets to prevent uneven heating and bursting. 9.After heating, do not wash the test tube before it has cooled to room temperature. 10.When using the test tube clamp to clamp the test tube, put the test tube clamp up from the bottom of the test tube and clamp it on the middle and upper part of the test tube.  11.External flame is used for heating.

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Le 28 déc. 2022 à 10:53:39 CET, le vendeur a ajouté les informations suivantes :

  • Condition: Neuf
  • SIZE: B
  • Country/Region of Manufacture: China
  • Material: Glass
  • Brand: Unbranded
  • Type: //
  • Model: //

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