Analytical Contract Lab Providing Particle Size and Characterization Testing Services

(630) 969-2703

International Shipping to PTL

With sample material arriving from more than 36 countries (and counting), Particle Technology Labs welcomes clients from around the world.

For a variety of reasons, international shipments may be held in U.S. customs.  To limit or prevent shipping delays and to avoid unexpected additional fees on your final invoice, please be sure to follow these special instructions for shipping sample material to Particle Technology Labs from outside the United States.

Important Instructions - Commercial Invoice

A commercial invoice or Pro Forma invoice is required for any shipment to pass through U.S. customs.

It is important to include as much information as possible on the invoice. Omitting any information on your invoice may result in shipping delays.

The following information has been compiled from several shipping companies. For specific instructions from your carrier, please visit their website.

If possible, ship samples using a common U.S. courier who can assist in international shipments to the U.S. such as UPS, FedEx or DHL. Contact them directly with questions regarding customs paperwork.

The following information must be included on the commercial invoice accompanying all international sample shipments to PTL:

1. Shipper Information

Company contact information in full including:

  • Address
  • Phone number
  • Email address
  • Contact name of individual to be contacted with any questions about the shipment
  • Value
  • Added Tax number (VAT)

2. Consignee (PTL’s Information)

Particle Technology Labs
555 Rogers Street
Downers Grove, IL 60515-3776


Attn: Order Entry

Phone # (630) 382-8758

3. Importer

  • Name and address of purchaser (importer) if different from the consignee, including a contact name and telephone number.

4. Invoice Date


5. Purchase Order or Invoice Number, if applicable.


6. Complete Detailed Description of Samples Being Shipped

  • Full description including reason / intended use.
  • Number of units, unit value, and total value of each item. For samples or articles with no commercial value, a nominal or fair-market value must be stated for customs purposes.


7. Non-Drug Samples

  • US HTS (Harmonized Tariff Code, 10 digit number)


8. For Drug Products

  • US HTS (Harmonized Tariff Code, 10 digit number)
  • FDA Product Code, Program Code, Processing Code and Intended Use Code
  • FDA Affirmation of Compliance (AOC) - if applicable
  • Name, Address, Country of Manufacturer
  • FDA FEI number for Manufacturing Facility
  • If required by the courier, a TSCA declaration and/or End Use Letter can be furnished by PTL upon request. To complete your request, you must provide the material type (chemical name).
  • Medical Device Listing (MDL) or 501(k) number. If none, state “Samples not Marketed in the United States”.
  • Product manufacturer’s full address and country of origin.
  • Declared value or insurance charges, total value of shipment including currency of settlement.
  • Provide instructions for sample or return of samples. Example: “Samples disposed of after analysis” or “samples returned to manufacturer after analysis.”

9. Reason for Export

Include statement that the sample materials are for testing purposes only. Example: “No commercial value or clinical application, for testing purposes only.”

10. Shipper's Signature and Date

Sign and date invoice certifying that the details provided are true and correct. Be certain that all information is consistent on all documents or your shipment could be delayed in customs.

If required by the courier, a TSCA declaration and/or End Use Letter can be furnished by PTL upon request. To complete your request, you must provide the material type (chemical name).

11. * Administrative Fees

Please note that couriers may charge an administrative fee on shipments that require an FDA release.

If the air waybill is not marked to bill all duties and taxes to the sender (shipper), by default the courier passes this fee to PTL. Should any fees be charged to PTL on behalf of a courier or other entity during shipment, these fees will be added to the final PTL project invoice.


FDA Product Code Builder website:

FDA Affirmation of Compliance website:

US HTS (Harmonized Tariff Schedule Codes)