Assessment of a supplier’s technical documents, specifically the Laboratory Testing Report (LTR), can be a bit challenging when comparing reports that are issued by different companies. An LTR is granted to a product that meets a minimum set of regulatory, technical and safety requirements. Occasionally, this type approval is required before a product is allowed to be sold in a particular country, so the requirements for a given product will vary around the world. This problem is often compounded by the use of different testing methods for different regulations, language barriers, and formatting styles. Source Intelligence (SI) utilizes the IEC 62321-1:2013 standard as the basis for determining if the supplier had provided sufficient information in their LTR and also to use as a reference for future documentation requests. Although the IEC 62321-1:2013 regulation was developed for the electronics industry, section 4.8 gives a clear outline for how a general laboratory test report should look.
The following are a list of the eight main points required in the LTR along with any specific pieces of information needed in each point:
1. Name, address and location of any laboratory involved in the analysis and name of the operator;
2. Date of receipt of sample and date(s) of performance of test(s);
3. Unique identification of report (such as a serial number) and of each page and total number of pages of the report;
4. Description and identification of the sample, including a description of any product disassembly performed to acquire the test sample;
5. A reference to this standard, the method used or performance-based equivalent (including digestion method(s) and equipment);
6. The limit of detection (LOD) or limit of quantification (LOQ);
7. The results of the test expressed as milligram/kilogram (mg/kg) in samples tested;
8. The signature (or equivalent sign of validation), name and function of the authorized person(s)
Include any details not specified in this standard, which are optional, as well as any other factors that may have affected the results. Also include any deviation, by agreement or otherwise, from the test procedure specified here. The results of all quality control (QC) tests (e.g. Results from method blanks, matrix spikes, etc.) and a list of reference materials used and their origin should be available from the testing laboratory upon request.