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Nine items: a moisture barrier bag, desiccant conforming to MIL-D-3464, a humidity indicator card, a real heat seal, the standard revision on the label, bake records, floor-life tracking, ambient monitoring and a documented reseal procedure. Miss the labelling clause or the seal and the pack fails an audit even though the materials are correct.
| # | Item | Requirement |
|---|---|---|
| 1 | Moisture barrier bag | An MBB — a dry cabinet is explicitly not a substitute |
| 2 | Desiccant | Conforming to MIL-D-3464; fresh or regenerated |
| 3 | Humidity indicator card | 5% / 10% / 60% RH spots; reversible; cobalt-free if shipping into the EU |
| 4 | Heat seal | Properly heat-sealed — not folded, not taped |
| 5 | Container marking | Part number, description, lot / date number, manufacturer name, quantity of cards, and IPC/JEDEC J-STD-033 including revision level |
| 6 | Bake records | Which parts, which profile, when; reflow within the label's time limit |
| 7 | Floor-life tracking | Clock starts when the MBB is opened, at the stated ambient condition |
| 8 | Ambient monitoring | Floor life is defined at a stated temperature and relative humidity |
| 9 | Documented reseal procedure | Dry → reseal with fresh desiccant and a card → heat seal; shelf life resets |
1. The standard revision on the label. J-STD-033 has moved through several revisions — D was published in April 2018. A pack that names no revision cannot be checked against the process it was built for, and the standard itself requires the revision level to be marked. The marking list is set out in how the dry pack fits together.
2. Evidence that the desiccant is live. "Bag contains desiccant" is not the requirement — the requirement is desiccant conforming to MIL-D-3464 in fresh or regenerated condition. Exhausted desiccant provides no protection, and it looks identical on a packing list. This is the whole reason a desiccant supplier belongs in this conversation.
3. A reseal that is actually a seal. Folded and taped bags are the most common practical violation. If a customer's own line reopens a pack, the procedure has to say heat seal, not close. The conditions are in floor life and baking.
| Document | Purpose |
|---|---|
| Declaration of conformance | Which revision of J-STD-033 the pack follows |
| Desiccant specification | Conformance to MIL-D-3464, and the grade used |
| Humidity indicator card datasheet | Spot set, reversibility, cobalt-free status, and standard conformance |
| Pack labelling sample | Showing all the required marking fields |
| Shelf life and storage statement | Including what resets it |
Our humidity indicator card and desiccant sachets are quoted together for this application, and the wider range sits under desiccants.
Written by the VEN Desiccant export team from the published text of IPC/JEDEC J-STD-033 and the card specifications we supply against. Drafting was AI-assisted; every marking field, the MIL-D-3464 reference and the sealing conditions were checked against the standard text and edited by our team before publication. We publish it because the desiccant is the part of a dry pack that can fail without anyone seeing it — the bag, the card and the seal are all visible, the sachet is not. Ask us for the document set and we will return it filled in for the grade and card type you are specifying.
Last checked: 11 October 2026.
Tell us the MSL, the card type and the sachet format and we will return the paperwork filled in.
