Formats and prices
Artificial Saliva · toys
DIN 53160 Saliva · two-part kit
Sweat Simulant · DIN 53160
Which standard applies to your test?
Toys and mouthed articles. DIN 53160-1 tests colour fastness to saliva: the article is held against a saliva-soaked substrate and any transfer of colourant is assessed. It is the routine check for toys, childcare articles, writing instruments and cosmetics that reach the mouth, and it sits alongside the EN 71 toy-safety family.
Dental alloys. ISO 10271 specifies three corrosion tests for metallic dental materials, and they do not share a fluid. We supply the one the standard defines outright: the static immersion solution of clause 4.1.5, lactic acid and sodium chloride at 0.1 mol/L, which settles at pH 2.3 and is used to measure the mass of elements released from crowns, bridges, orthodontic wires and brackets. It is made against your order because the clause asks for it to be used within a few hours of preparation. The saliva-based electrochemical and tarnish methods use different media, which we do not currently catalogue.
Both are used for in vitro studies of dental materials and for pharmaceutical research on buccal and sublingual dosage forms, where a defined and reproducible medium matters more than physiological realism.
This is laboratory and testing material, not a dry-mouth product: it is not intended for human or animal use. Supplied with a Certificate of Analysis per batch, at the pH your protocol requires within the standard's range, with no minimum order.
What laboratories ask us
Why is the ISO 10271 immersion solution made to order when the toy saliva is stocked?
Because the standard asks for it. ISO 10271 clause 4.1.5 wants its static immersion solution used within a few hours of preparation, and does not put a number on that. We will not print a nominal shelf life against a clause written that way, so the solution is made against your order and dated on despatch. The DIN 53160 saliva carries no such clause and is stocked.
Why is the ISO 10271 solution at pH 2.3, and can we have it adjusted?
It is not adjusted at all, and that is the point. The clause 4.1.5 composition is lactic acid and sodium chloride, and the pH that composition settles at is about 2.3. Titrating it to a round figure would change the solution the standard specifies. We measure the value and put the measured figure on the certificate. If your protocol needs a different acidity, that is a custom formulation and we quote it as one.
What does the DIN 53160-1 saliva actually test?
Whether colour comes off an article into saliva. It is the staining test for things that go in the mouth, toys and common-use goods, run at pH 6.8 ± 0.1. Because the DIN 53160-1 saliva carries no labile species it travels at 15 to 25 °C with no cold chain, which is why it is the one of the two you can keep on a shelf.
Can we see it before committing to a batch?
Yes, 30 mL with a specimen certificate, by tracked letter. Ask for the ISO 10271 immersion solution rather than the DIN 53160 one if you want to judge us: it is the one where freshness is the whole argument, and what you are checking on arrival is that it reaches you clear and at the pH on its certificate.