Send liquid sample for analysis: can I submit oil, liquid resin or another non-aqueous liquid?
Short answer
We do not receive oils, neat silicone fluids, solvent-free liquid resins or other non-water-based liquids from overseas as supplied. Declare the original product and proposed alternative together: where the product can be cured, a cured specimen can be proposed for review, while a prepared solid fraction needs its actual form and preparation explained. The English report describes supported retained ingredients and semi-quantitative proportions in the accepted specimen, without reconstructing volatile solvents or reactive material lost while making the alternative.
Is my liquid water-based, and can another form answer the same question?
A non-aqueous liquid has an organic solvent, oil, liquid monomer or liquid resin as its main liquid medium rather than water as the continuous phase; examples include silicone oil, lubricating oil, liquid plasticizer and styrene-containing resin. A water-based product can contain dispersed organic material and still be aqueous, but a small water contribution does not automatically make an oil or solvent product water-based.
Water-based status changes the receiving question rather than guaranteeing acceptance, and unlisted aqueous formulations are reviewed case by case after declaration. For solvent-based coatings, inks and adhesives, our sample-form guide covers cured films and solids fractions; this page addresses the wider oil, silicone-fluid, liquid-resin and liquid-additive question.
A curable resin can leave a solid network, whereas a neat oil should not be assumed to produce a representative cured or dry specimen simply because an alternative form would be convenient. If the same material can be bought or delivered within mainland China, say so in the declaration because no import is involved on that route, while declaration, quotation, payment and an acceptance number still come first.
How would we assess and analyze a proposed solid or cured alternative?
1. We would connect the accepted alternative to the declared original product, record whether it is a cured specimen, dried film or prepared solids fraction, and divide it so every result remains tied to that actual state.
2. We would choose preparation for retained accessible ingredients and relevant elements, reviewing what drying, cure or fraction separation removed so the accessible material is not mistaken for the complete original liquid.
3. We would investigate suitable surviving small molecules with GC-MS and suitable nonvolatile additives with LC-MS/MS, reporting supported compounds or families while keeping transformation products distinct from assumed starting ingredients.
4. We would use ICP-MS for relevant elements where needed and estimate supported component contributions semi-quantitatively on the prepared-specimen basis, without rescaling the findings into an original liquid recipe whose missing fraction is unknown.
5. We would compare corresponding prepared states where available and review the lost and chemically changed portions, leaving the original-solvent question or unresolved reactive contribution visible in the conclusion rather than filling the gap by assumption.
Why can these techniques only analyze what the alternative specimen retains?
GC-MS separates suitable gas-phase molecules and reads their mass-spectral patterns, but it cannot detect an original solvent that has already evaporated before the specimen reaches the analysis. LC-MS/MS separates suitable dissolved nonvolatile ingredients and examines selected ion-fragment relationships, supporting retained additives while a reactive diluent consumed during cure may no longer exist as the same free molecule.
ICP-MS supplies relevant elemental amounts after suitable preparation, yet the proportion of a retained element can appear higher when another fraction has been removed, even without any extra elemental ingredient being added. Combining the routes supports the chemistry of the actual alternative, while the original product description and preparation record explain why that chemistry cannot automatically be transferred back to the complete non-aqueous liquid.
What will the report say after I change the specimen form?
The conclusion card, component table, estimated proportions and data appendix would describe the accepted specimen and state the lost or unresolved portions, keeping the original-liquid question distinct from the retained-material answer. Volatile solvents can disappear, reactive diluents can enter the cured network and separation can remove soluble additives, so the prepared sample cannot by itself restore the original liquid proportions or mixing recipe.
Our reports are research-grade analytical reports from a laboratory that is not accredited. They cannot be used for product registration or legal proceedings.
What must I put in the declaration before proposing an alternative?
Declare the original product, actual proposed form, SDS, photographs and analytical question, including how any cured film or solids fraction was prepared and whether residual liquid remains. Non-aqueous liquids are not received as supplied, and unlisted alternatives are reviewed case by case after declaration; a carrier’s dangerous-goods service does not change our receipt decision. Use the industrial inquiry page and shipping guide; ship after agreement, payment and an acceptance number.
Which related guides should I read?
FAQ
Does solvent-free liquid resin count as a receivable solid?
No; solvent-free liquid resin is still non-water-based liquid and is not received as supplied from overseas, although a cured specimen can be proposed where that product can be cured.
Can I dilute an oil with water and call it water-based?
Adding water does not by itself establish an aqueous continuous phase or make the result representative of the original oil, so describe the actual mixture rather than assuming a changed label resolves the sample question.
Can a dried alternative reveal the original solvent blend?
No; a dried specimen cannot recover solvent already lost, and its estimated ingredient proportions refer to the retained material rather than the complete original liquid.
Does a solid outer carrier establish acceptance of liquid contents?
No; a solid exterior does not make a non-water-based liquid receivable, so disclose any contained liquid and obtain review of the actual proposed construction before shipment.
Send a sample declaration and tell us what you want to learn from the proposed specimen.