Biology Specimen Lab Equipment Manufacturer, Supplier and Exporter in India

Biology Specimens

Preserved: ask what is in the jar

The traditional preservative for a wet specimen is a formaldehyde solution, commonly called formalin, and it works extremely well. It is also a respiratory and skin sensitiser, and formaldehyde is classified by the International Agency for Research on Cancer as carcinogenic to humans. Occupational exposure limits for it are strict, several jurisdictions restrict or discourage its use in schools, and some institutions have removed it entirely.

None of that makes preserved specimens unusable. It means the question has to be asked at the enquiry stage:

• Ask us which preservative each specimen is supplied in, and whether a formalin-free or reduced-formaldehyde alternative is available for the specimens you want. We will answer in writing rather than leaving it to be discovered when the consignment is opened.
• Ask for the safety data sheet for the preservative with the quotation, and give it to whoever is responsible for chemical safety at your institution before the specimens arrive.
• Plan the storage. Sealed jars, a ventilated cupboard rather than an open shelf in a classroom, and a procedure for spills - absorbent material, gloves and eye protection to hand, and a route for disposing of the contaminated absorbent.
• Do not decant on an open bench. Topping up a jar is the operation that produces real exposure, and it should be done with ventilation and eye protection, not casually at the end of a lesson.
• The commonest real-world exposure is a leaking jar. Check seals on delivery, check them again each term, and treat a jar with a crusted or weeping lid as a job to be done rather than a cosmetic problem.

If your institution has decided against formaldehyde, say so on the enquiry. Where we cannot supply a particular specimen in an alternative preservative we will tell you, and the plastic-embedded specimens range is the usual answer - sealed in resin, no preservative, no fumes, and handleable by students, with the trade-offs set out on that page.

Documented: a specimen without a name is an ornament

The teaching value of a specimen is in what it is, and that means the scientific name rather than only a common one. "Specimen of insect" tells a student nothing; a named genus and species lets them place it, look it up, and compare it with the next one. Ask for:

• The scientific name, on the jar label and on the packing list.
• What stage or structure the specimen shows - a development series is a sequence of stages, and a series whose jars are not in order and labelled by stage is much less useful than one that is.
• A label inside the jar as well as on it. External labels come off in storage, and a jar of unidentified material is thrown away by the next technician. An internal label in pencil or a solvent-resistant ink survives.
• A register. Number the jars, keep a list with the names and the date received, and check it annually. It takes an hour a year and it is the difference between a collection and a cupboard.

One correction we should make publicly: a record in this listing reads "Specimen Of Locus Development". The insect is the locust, and the series shows its development; "locus" is something else entirely. We are correcting the name, and we print the right word here because it is the word a specifier will search for.

Legal: several of these are dead wild animals

This is the part that is not on anyone else's category page and it is the part that can stop a consignment at a border. A preserved gecko, an octopus or a beetle is a specimen of a wild animal, and the movement of wild animal specimens between countries is regulated:

• The Convention on International Trade in Endangered Species - CITES - controls international trade in listed species, including dead specimens and parts, and a listed species requires permits in both the exporting and the importing country. The listing status of a species is a matter of fact that has to be checked, not assumed.
• National law applies on top of that. In India, trade in specimens of wild animals is regulated under the Wild Life (Protection) Act; importing countries have their own wildlife, biosecurity and customs rules, and some require a permit for any animal specimen regardless of species.
• Biosecurity rules are separate again. Several countries control the import of preserved biological material on plant and animal health grounds, independently of conservation status.

So: tell us the destination country with your enquiry. We will confirm in writing what we can supply to it and what documentation accompanies the consignment, and we will not offer a specimen of a listed species without the permits that species requires. We would rather lose an order than have a school's consignment seized, and we would rather say this plainly than leave a buyer to find out at customs. If your own institution has an ethics or biosafety committee, this is a question to put to them before ordering rather than after.

What a real specimen does that a model cannot

Given everything above, it is worth being clear about why preserved specimens are still worth the trouble:

• Real size. Models are made at convenient sizes and mislead about scale unless labelled; a specimen is the size the animal was.
• Real variation. Two specimens of the same species are not identical, which is the single most important thing biology has to teach and the one models remove by design.
• Real structure. Nothing is colour-coded, nothing is simplified, and a student has to find the structure rather than read a label.
• Development series. A locust, silkworm or frog series shows a process that students otherwise meet only as a diagram, and seeing the actual stages in order is memorable in a way a drawing is not.
• Seriousness. A class handles a real organism differently from a plastic one, and that difference is worth something in a biology course.

And what it cannot do: it cannot be dissected repeatedly, it deteriorates if the preservative is neglected, it bleaches in light, and it cannot be handled bare-handed. For handling by a whole class, use embedded specimens; for identification and structure, use the models in zoology anatomy models; for the tissue level, microscopes and slides. A good biology collection has all four, and each does what the others cannot.

Care: four habits that keep a wet collection

• Top up the preservative. It evaporates, and a specimen left partly exposed is permanently damaged. Check levels each term, and top up with ventilation and eye protection.
• Keep the jars out of light. Specimens bleach, and a bleached specimen has lost the contrast that made it legible.
• Do not stack jars or store them where they can be knocked. A broken specimen jar is a chemical spill as well as a lost specimen.
• Inspect and register annually. Seals, levels, labels, and a note of what has deteriorated. A collection that is inspected lasts decades.

What to tell us when you enquire

• The destination country - this is the first thing we need, for the reasons above.
• Which specimens or development series your syllabus names.
• Whether your institution permits formaldehyde preservatives, or requires an alternative.
• Whether the scientific name and stage must appear on the jar and the packing list.
• Your storage arrangement - ventilated cupboard, open shelf, classroom or prep room.
• Whether your institution has an ethics or biosafety approval requirement.

Related ranges in this branch: bioplastics for embedded specimens with no preservative, zoology anatomy models, specimen storage and cabinets for keeping a collection, dissecting and microtomy tools and microscopes and slides. The full biology lab equipments and educational lab equipment categories list the rest.

Frequently asked questions

Are these specimens preserved in formaldehyde?

Ask per specimen and we will answer in writing, because it matters. Formaldehyde solution is the traditional preservative, it is a respiratory and skin sensitiser, and formaldehyde is classified by the International Agency for Research on Cancer as carcinogenic to humans - so exposure limits are strict and some institutions have removed it. Where an alternative preservative is available for the specimens you want, we will say so; where it is not, embedded specimens are usually the answer.

Can you ship preserved animal specimens to our country?

Tell us the destination and we will confirm in writing. International trade in listed species is controlled under CITES and requires permits in both countries; national wildlife law applies on top of that, and some countries require a permit for any animal specimen regardless of species, with biosecurity rules separate again. We will not offer a specimen of a listed species without the permits it requires - we would rather lose an order than have a consignment seized.

Why does the scientific name matter?

Because it is what makes the specimen teachable. "Specimen of insect" cannot be looked up, compared or placed in a classification; a named genus and species can. Ask for the scientific name on the jar label and the packing list, with the stage or structure shown, and ask for a label inside the jar as well as on it - external labels come off in storage and unidentified jars get discarded.

Should we buy preserved specimens, embedded specimens or models?

All three if you can, because each does what the others cannot. Preserved specimens give real size, texture and variation and are the only way to show a genuine development series. Embedded specimens can be handled by a whole class with no preservative and no fumes. Models show idealised structure clearly at class size and can be dissected and reassembled. A collection with only one of the three has a predictable gap.

How do we look after a wet collection?

Top up the preservative each term, because it evaporates and a partly exposed specimen is permanently damaged; keep jars out of light, because specimens bleach; store them where they cannot be knocked, since a broken jar is a chemical spill; and inspect and register annually - seals, levels and labels. A collection that is inspected lasts decades, and one that is not is quietly replaced every few years.

What is wrong with the "Locus Development" specimen name?

It should read locust. The series shows the development of a locust, and "locus" is an unrelated word, so the record is currently unsearchable by the term a buyer would use. We have published the correction here and flagged the record to be renamed - and we would rather state it than leave a specifier wondering whether we know what is in the jar.

Key takeaways

• Ask what is in the jar. Formaldehyde is an effective preservative and a classified human carcinogen; get the safety data sheet before the specimens arrive.
• Tell us the destination country first. CITES, national wildlife law and biosecurity rules all apply to dead wild animals.
• Insist on scientific names, stage labelling, an internal label, and a numbered register.
• A leaking jar is the real exposure - check seals on delivery and every term.
• Top up the preservative and keep jars dark; evaporation and light are what destroy wet collections.
• Preserved, embedded and modelled material do different jobs. A collection needs all three.

About this page

Ray Export is a manufacturer and exporter of laboratory, scientific and educational equipment based at Plot No. 449, HSIIDC Industrial Area, Saha, Ambala, Haryana 133104, India. Enquiries: [email protected], +91-9817319615.

Written by Palak Mall, Senior Content Writer. Technically reviewed by Arvind Kumar, Lab Equipment Specialist, 12+ years in laboratory and testing instrumentation. Last updated: 17 October 2026.

Notes on this listing, published rather than hidden: "Specimen Of Locus Development" should read locust, and several records are named only by group - "Specimen Of Insect", "Specimen Of Pest", "Specimen Of Arthropod" - which gives a buyer no species and no stage; both are being corrected, and scientific names are being added. Every name also carries the padding phrase "For Biology Lab", which has truncated some records. The regulatory statements on this page are general and must not be treated as legal advice: CITES listings, national wildlife law and biosecurity requirements change and differ by country, and the position for your destination will be confirmed in writing before any consignment. Preservative identity, specimen condition and all other specifications will be confirmed on the quotation; obtain the safety data sheet and your own institution's chemical and biosafety approval before ordering.