PTC x Tianxin - Group Testing Get started

Learn / Pricing

What a contribution covers

Prices below are read from the live price list, with Tianxin20 at 20% off lab lines. A pledge is still unpaid until a treasurer confirms it.

COA (purity, identity, mass)
$249.00
$199.20 after Tianxin20
Heavy metals add-on
$149.00
$119.20 after Tianxin20
Endotoxins USP<85>
$250.00
$200.00 after Tianxin20

Worked example

A standard COA only, no heavy metals, no endotoxin, vendor-supplied vial, suggested across 10 people.

List COA$249.00
After Tianxin20$199.20
Suggested per person$20.00

Minimum pledge $15.00. Custom COA is an extra $50.00 and does not replace the group COA. Endotoxins USP<85> is $250.00 both as an add-on and as a standalone test.

If a member supplies the vial

Example: $80 sample and $18 shipping, on top of the discounted COA.

Standard COA (purity, identity, mass)$199.20
Member-supplied sample (reimbursed)$80.00
Member shipping (reimbursed)$18.00
Target$297.20
Suggested per person$30.00
The sample cost is credited against that supplier's own suggested share. It is not paid out as cash on top of the target. When the lab receives the vial, the group reimburses the supplier from confirmed funds.

After the target

Return to Learn