China Laboratory Boro 3.3 glass or Soda Lime glass Glass Test Tube Manufacture and Factory

Laboratory Boro 3.3 glass or Soda Lime glass Glass Test Tube

Short Description:

Material: Boro 3.3 glass/Soda Lime glass

Color: Clear

OEM is available

Payment Term: T/T,L/C,Western Union,Palpay

Samples: Offered within 5 days generally

Loading Port: Qingdao /Shanghai port or up to customer

Delivery Time:15-30 days up to customer’s quantity

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Product Detail

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Test Tube Introduction

The test tube is used as a reaction container for a small amount of reagents, and can also be used to collect a small amount of gas. The size of the test tube is generally specified by the product of the tube outer diameter and the tube length. Commonly used are 12 × 100 mm, 15 × 150 mm, 18 × 180 mm, 20 × 150 mm, and 25 × 200 mm.

About Test Tube

Product Specification

The dimensions are all measured by hand, so there may be some errors. Please contact us for the specific freight.

1230	Test culture tube with screw cap
O.D.of. tube(mm)	Length (mm)
12	75
12	100
13	100
15	100
15	150
16	100
16	150
16	160
18	150
18	180
20	125
20	150
25	200

*1231*	Test tube without rim plain
O.D.of. tube(mm)	Length (mm)
12	75
12	100
13	100
15	100
15	150
16	100
16	150
16	160
18	150
18	180
20	125
20	150
25	200

*1232*	Test tube with rim plain
O.D.of. tube(mm)	Length (mm)
12	75
12	100
13	100
15	100
15	150
16	100
16	150
16	160
18	150
18	180
20	125
20	150
25	200

*1236*	Test Tube With graduations
Capacity(ml)	Graduation(ml)	O.D.of. tube(mm)	Length(mm)
5	0.1	11	110
10	0.2	14	130
15	0.2	15	150
20	0.5	17	165
25	0.5	18	180
30	0.5	19	180
50	1	23	200

*1233*	Fermentation Test Tube
O.D.of. tube(mm)	Length(mm)
6	30

Precautions for the use of glass test tubes

1.When the solution is filled, it does not exceed 1/2 of the capacity of the test tube, and when it is heated, it does not exceed 1/3 of the test tube.
2.When dripping liquid into the test tube with a dropper, do not reach into the test tube mouth;
3.Tweezers should be used to take the block solid into the test tube. Do not drop the solid directly into the test tube to prevent the bottom of the test tube from cracking;
4.The test tube clamp is used for heating, and the test tube mouth should not face people. When heating the test tube containing the solid, the nozzle of the tube should be slightly downward, and when the liquid is heated, it should be tilted about 45°; the test tube clamp should be clamped at 1/3 of the bottle opening.
5.Heat evenly to avoid bumping or tube explosion;
6.After heating, it cannot be cooled rapidly 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. Within one of the positions is reasonable.
11.Heating application outer flame

Note: The test tube can be heated directly.