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Square Stage


Toxicity Test





500 Terry Francois Street
San Francisco, CA 94158

Date of Birth:

March 14th, 1984

WhatsApp Image 2021-12-14 at 11.12.33.jpeg

What do you need for this test?

So you want to know what is happening, you want a rough guesstimate as to how your leather or biomaterial will react to being composted. This is the cheapest and quickest option for you bla bla bla.

We need (SO MANY) samples from you (WEIGHING IN AT) this much. Please enclose the leathers safely so tha tbla bla 

What happens with your samples?

Placed in reactors with compost @ 58’c

Mixed and watered


EcoTox Report

When the materials are received, they are shredded into tiny particles. These are then placed in reactors in industrial composting conditions with standard compost ingredients.

The compost mixtures are mixed according to the method and water is added to keep the compost moist. The test is mixed and watered for 90 days (whilst being incubated).

The final compost is analysed for a standard ecotoxin screen (metals, pesticides, solvents, oils/grease, phytotoxins, PBvTs).

The values received in the ecotoxin screen are then included in a final report to the customer that compares the leather compost levels to the typical requirements of the EU and US soils.

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