The multichannel format thins out at the top of the volume range, because eight channels of a millilitre is a heavy instrument moving a lot of liquid, and above it the work moves to serological pipettes and a controller instead.
A 10ml pipette and the format it belongs to
A 10ml pipette is a serological pipette used with a controller rather than an air displacement instrument, which is why it is graduated along its length and read by eye. Whether it is a blow out type decides how the last volume is delivered, and that is printed on the pipette rather than on the box.
A 50 ml pipette, also listed as a 50ml pipette
A 50 ml pipette, written either way in a catalogue, is the largest common serological format and it needs a controller with the aspiration speed to fill it without drawing liquid into the filter. At that volume the meniscus and the delivery time dominate accuracy, so a graduated cylinder is the better instrument for a bulk measurement.
A 25 ml serological pipette and where it sits
A 25 ml serological pipette covers the transfers a cell culture actually makes, and individually wrapped sterile versions with a filter plug are the ones that belong in a cabinet, since the plug protects the controller rather than the sample. Plastic and glass differ in how much protein sticks to the wall, which matters for a dilute sample.
A science pipette, and what the question usually means
A request for a science pipette is usually a new laboratory asking what to buy first, and the answer is one adjustable air displacement instrument covering the volumes in use, a serological pipette with a controller for millilitres, and tips that match the instrument's own cone rather than a compatibility chart.
rnase free tips, and what the certificate covers
rnase free tips are tested for ribonuclease, for DNA and for pyrogens rather than simply moulded in a clean room, and for RNA work that test is the reason to buy them. A filter tip additionally protects the instrument's piston, which is the route by which a laboratory contaminates its own next sample.
A pipette 10 ml, written the other way round
A pipette 10 ml, written with the volume last, is the same serological pipette used with a controller, and the controller decides the experience rather than the pipette: aspiration speed, a fine delivery control and a filter that protects it. Whether it is a blow out type is printed on the pipette itself.
Questions people ask about multi channel pipette 1000ul
Why is there no common 1000ul multichannel?
Weight and liquid volume. Above a few hundred microlitres the work moves to serological pipettes.
Serological or adjustable above 1 ml?
Serological with a controller. An air cushion is inaccurate at those volumes.
Do tips need to match the brand?
Check gravimetrically on your own instrument. A tip that almost seals under delivers with no visible fault.