ISTA 3A vs ISTA 6-Amazon.com-SIOC — Which One Your Channel Requires

Short answer: ISTA numbers are categories, not grades. The 3-series covers general simulation for parcel shipment; the 6-series covers member-specific protocols written by particular companies. ISTA 6-Amazon.com-SIOC is the sequence behind Amazon's Ships-In-Own-Container programme. A mirror sold on Amazon without an over-box is aiming at the 6-series; a mirror going to a distributor's warehouse is aiming at the 3-series.

The numbering is a classification, not a ladder

This is the single most common misunderstanding, and it costs money because it sends people to the wrong test.

Series	What it is	Typical use for mirrors
ISTA 3-series	General simulation of the parcel distribution environment	Parcel-shipped goods generally; 3A is the common reference
ISTA 6-series	Protocols written by specific member companies	6-Amazon.com-SIOC for Ships-In-Own-Container listings

ISTA 6 is not "higher" than ISTA 3A. A package that passes 3A has not automatically satisfied a 6-series protocol, and the reverse is equally true. They ask different questions on behalf of different audiences.

When each one is the right target

Going to a warehouse, then re-shipped. The carton will be palletised, moved by forklift, and broken down at the far end. The 3-series parcel profile is the sensible design target, and edge protection matters more than surface presentation.

Going straight to a consumer from a marketplace listing. The item ships in its own container with no over-box, so the retail carton *is* the shipping carton. That is what the SIOC programme is about, and it changes the design: printed carton faces have to survive handling, tape lines have to work for a courier, and the drop sequence is the member protocol rather than the general one.

Selling on your own site with your own 3PL. You choose. Most sellers design to the parcel profile and add a spare-parts kit, which handles the tail of damage more cheaply than over-engineering every carton.

Why mirrors break, and what the profile actually tests

Mirrors rarely break because a carton was dropped flat. They break from edge impact, panel flex and unsupported profile points — a corner catching a door frame, a stack leaning, a long panel loaded across an unsupported span. A packing design that survives a drop sequence but leaves the long edge unprotected is solving the wrong failure.

That is why the drop sequence is worth understanding rather than just quoting. It tells you which orientations get tested, and therefore which edges your internal fitment has to protect.

Who owns the report

This is where buyers get surprised, and it is worth stating plainly rather than discovering it during a platform review.

An ISTA test report belongs to whoever commissioned the test. When a factory runs a sequence for one customer, that customer owns the report; it does not become a document the factory can hand to the next buyer. So a supplier saying "we are ISTA 3A tested" and a supplier able to send you a report with your model number on it are making different claims.

So when you need a report with your own model number on it, the route is a commissioned test on your SKU — run to whichever profile your channel calls for, with the report issued to you. Our export cartons are built to the ISTA 3A parcel profile and have been run to the ISTA 6-Amazon.com-SIOC sequence, which is the design starting point for that test.

One more thing most factories do not mention: if you need the SIOC or FFP badge on a listing, the test has to go through a laboratory on Amazon's APASS directory. A test run elsewhere, however competently, will not register against the programme.

What we ship with every order

Packing built to the parcel profile, carton marks to your specification, and a free spare-parts kit — because on fragile goods moving through parcel networks, replacing one panel is cheaper for both sides than processing a return.

The full catalogue covers decorative, bathroom, floor and vanity mirrors, and the e-commerce programme sets out the packing, labelling and spare-parts terms in detail. Send the models and the destination channel and we will come back within 24 hours.