Description
Tamper-evident closure PP is a blue polypropylene screw cap designed for wide-neck square laboratory bottles of 50 ml and 100 ml. Featuring a GL 32 thread, it provides a secure, resealable seal that clearly indicates whether a container has been opened, supporting sample integrity and chain-of-custody needs in analytical, quality-control and routine laboratory workflows. The wide-neck geometry facilitates filling, pouring and cleaning of the matching square bottles while the polypropylene construction offers chemical resistance suited to many aqueous and organic media used in lab practice. Supplied in packs of 10 pieces, each closure has a net weight of 0,005 kg, making it practical for stocking multiple bottle sizes side by side. This Originalitätsverschluss from manufacturer Witeg is intended for use with the corresponding wide-neck square bottles and helps laboratories maintain clear visual evidence of first opening without altering standard GL 32 handling. Ideal for reagent storage, sample transport preparation and general laboratory bottle systems where tamper indication and reliable thread engagement are required.
This article is part of Screw caps & closures, in Stoppers, caps & closures.
Key features
- Pack size: 10 pc(s)
- Material: PP
- Colour: blue
- Thread: GL 32
- Compatible bottles: square 50 and 100 ml
- Neck type: wide neck
- Technical Information Sheet:
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Questions about Tamper-proof cap PP for square bottle 50 + 100 ml
What is this article?
Tamper-proof cap PP for square bottle 50 + 100 ml is the article on this page. Luminix Health distributes Witeg for laboratory use. It sits in Screw caps & closures, inside Stoppers, caps & closures, in Labware.
A screw cap has a thread and a liner. The thread has to match the bottle. The liner has to survive the liquid: a pulp liner fails in a solvent that a PTFE-faced liner ignores. The colour of the cap is not the specification.
A closure is the part that decides whether a bottle stays shut and whether the contents attack the seal. A ground-glass stopper matches a ground neck. A screw cap needs the right thread and a liner that survives the liquid. Rubber and silicone stoppers push into a mouth. The liner, not the colour of the cap, is the chemical choice. The vessels they close are indexed under ISO laboratory glassware.
Which category should I open next?
The category is Stoppers, caps & closures. The sub-category is Screw caps & closures. The catalogue is Labware.
Shelves beside this one are Rubber & silicone stoppers, Ground-joint glass stoppers, Lids & seals and Closures (other).
What should I check before I order?
When this page shows a safety data sheet, use that manufacturer file. Hazard text does not belong in the sales description. For a pack size, a grade or a certificate that is not on the page, send a quote request or contact the team.
How does ordering and shipping work?
Luminix Health distributes this article from the heart of Europe. Articles in stock ship within 2–5 business days. Standard delivery is free from €250 excl. VAT. Cold-chain goods and dangerous goods under ADR are never included in that free delivery. The terms are in the Shipping Policy. The full brand index is on shop by brand. Who we are is on about us.
Which other categories should I open?
The seven catalogues are Labware, Lab chemicals, Lab instruments, Lab consumables, Chromatography equipment, Lab safety equipment and Life Science & Microbiology.