X-ray diffraction services: XRD.us-sample submission

Sample Requirements:

All types of powder diffraction analyses are non-destructive. XRD measurements require about 1 g sample. Intensity aberration minimization for samples with large unit cells may require about 5 g sample. Generally 5 g of sample material are preferred, although quantities as small as 0.25 g can be analyzed. For routine qualitative analysis, approximately 1 g sample is sufficient. In case of well-crystalline, single grain, about 1 mg of material is sufficient. For bulk sample analysis, where certain fraction is to be extracted, we require preferably more than 10 g sample. Neutron diffraction require normally larger amounts samples ~-5-10 g. The sample should be representative of the bulk material and should be crushed to less than 50 micron powder - our technician can prepare the samples if required.

Please call for assistance if there are any other questions.

Please read our terms and conditions.

Sample Submission

All samples sent to XRD.US should be accompanied by XRD.US sample submission form. Please take your time to fill out the details on the submission form, they will stay with the sample records in the database, and will be available for future reference.

Please provide representative samples of the products to be analyzed. Results apply only to the samples submitted.
Provide specific written instruction together with the sample. Clearly label and identify each of the samples. DO NOT SEND INSTRUCTIONS SEPARATELY.
Package and ship samples wrapped in bubble plastic, Styrofoam etc. Plastic sample vials with screw cap, snap cap or locking-lid tubes are the best and safest option (There are many varieties: check Fisher Scientific^TM catalog Centrifuge Tubes section).
Sample submission should be accompanied by XRD.US sample submission form and a purchase order or a letter of request from our company. Include sample identification, written instructions, a list of analyses to be performed, name and address, and telephone and fax numbers.
All samples are shipped via UPS, Federal Express, or Certified Mail unless otherwise specified.

XRD.US has several types of sample submission forms which we encourage you to use. Our sample submission forms can be downloaded by clicking links below. If you have any questions please contact us.

Sample submission form PDF

You can also print the same sample submission form in MS Word (.doc) and Rich Text Format (.rtf)

Storage of Samples After Analysis

Samples will be retained for a period of 2 weeks after reporting results. If your sample needs to be retained longer than this, please contact us. Storage fees may apply. Hazardous Material samples may be returned to client at our discretion and a return fee will be added to the analyses.

All samples should be accompanied by written instructions which include the following information

1.	Report To	Name, address, phone number, and fax number of the person who should receive "Report of Analysis".
2.	Invoice To	Name, address and phone number of the person or department to whom the invoice should be sent.
3.	Sample Description	Complete sample description (including quantity) and identification numbers as they should appear on your final "Report of Analysis". Please include a description of the of the sample container or packaging.
4.	Purchase Order Number	A Purchase Order Number is required for all testing. Many clients issue standing P.O.'s for routine testing.
5.	Test Required	Specify all tests to be performed.
8.	Safety & Storage	Special storage and safety information NOTE: Hazardous samples must be accompanied by an MSDS or other adequate safety information.
9.	Good Laboratory Practice (GLP) Request	Some studies intended for submission to EPA and FDA must be performed in accordance with GLP regulations. There is an additional charge for GLP treatment. Please indicate if GLP treatment is required.
10.	Special Instructions	Information on preparation, handling or testing of samples, report format, report or invoice copies etc.
11.	Results Needed Date	If you need your test results by a certain date, indicate the date on your Request for Analysis. If we cannot meet your target date and/or if a rush surcharge is applicable, we will call you.
12.	Disposition of Samples	Indicate whether samples should be returned or discarded. We reserve the right to return any samples. NOTE: Unless you request otherwise, all non-hazardous, non-GLP samples are discarded within 2 weeks after report is issued.
13.	Signature/Date:	Please sign and date the sample submission forms.

Note: For each test requested, please submit separately packaged, labeled samples. This will expedite the testing of your samples.

The submission of a complete “Request for Analysis” with your samples will reduce the turnaround time of your test and ensure that the information on the “Report of Analysis” meets your expectations.