Product Overview
Rimmed Glass Test Tubes are glass lab tubes with a finished rim around the mouth. They are used for routine liquid handling in chemistry, biology, and teaching labs. The rimmed opening is suited to repeated filling, pouring, rack movement, and temporary contact with rubber stoppers, cork stoppers, or caps.
Specifications
|
Item |
Details |
|
Product Name |
Rimmed Glass Test Tubes |
|
Material |
Lead-free, arsenic-free Borosilicate 3.3 glass |
|
Standard Sizes |
12×75mm, 15×100mm, 18×150mm |
|
Capacity Range |
5ml, 10ml, 15ml |
|
Wall Thickness |
0.8–1.0mm |
|
Rim Width |
3–4mm |
|
Bottom Type |
Round bottom |
|
Mouth Structure |
Integrated fired rimmed edge |
|
Graduation |
Printed scale, reading error within 0.8% |
|
Temperature Range |
-18℃ to 140℃ |
|
Sterilization |
121℃ pressure sterilization |
Key Features
- Fired rim for frequent handling: the thicker rim gives the mouth a steadier grip point during rack movement, clamp holding, and manual transfer.
- Smoother pouring at the edge: the finished rim helps liquid leave the tube mouth more evenly and keeps dripping around the opening lower during repeated use.
- Better contact with stoppers: the rim shape gives rubber or cork stoppers a more consistent contact area for temporary covering and short bench storage.
- Safer mouth feel: the burr-free opening reduces sharp-edge contact when technicians pick up, rinse, or move tubes many times in one shift.
Customization Options
- Rim Structure: rim width, mouth edge thickness, and fired-edge finish
- Size Range: outer diameter, tube length, and small-volume size extensions
- Mouth Matching: rubber stopper, cork stopper, or cap-contact opening
- Graduation & Printing: printed scale, scale interval, logo position, and item identification
- Private Label: product label, barcode label, and distributor item code
Quality Control
Rimmed tube inspection checks mouth consistency, rim smoothness, tube dimensions, and visible glass defects. The rim is compared with the approved sample so the opening does not feel sharp, uneven, or poorly formed during handling or stopper use.
Before packing, Yukang checks every tube and removes pieces with cracks, bubbles, scratches, poor rim formation, or unstable dimensions.
FAQ
Q: What is the MOQ for Rimmed Glass Test Tubes?
A: Standard MOQ starts from 1 export carton per rimmed tube size. Custom rim width, printed scale, label, and private-label versions start from 1,000 pcs per specification.
Q: Are samples free for rim and stopper-fit checking?
A: Standard samples are free, with freight excluded. Custom samples take 2 weeks after rim width, tube size, printing, and label direction are confirmed.
Q: How long does production take?
A: Standard rimmed tube orders are usually scheduled in 7–15 days. Custom rim, graduation, and private-label orders are scheduled in 20–30 days after sample approval.
Q: How are the rimmed tubes protected in export cartons?
A: The tubes use inner separation, grid or foam support, and reinforced cartons, so the mouth edge and tube body are protected during transport.
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