Chemical Inventory Management: Building a List That Works

Why an inventory matters

OSHA's HazCom standard requires the written program to include a list of the hazardous chemicals known to be present, using a product identifier that is referenced on the SDS. Beyond that, the inventory supports storage segregation, spill planning, waste management, purchasing control, emergency response and regulatory reporting. It also answers the question "what were we using in this area ten years ago?", which can matter for exposure records; see how long to keep SDS records.

What to record

How to build it

1. Walk the site. Include storage rooms, workshops, labs, vehicles, janitorial closets and maintenance areas. Photograph labels.
2. Collect the sheets. Mark missing ones and request them; see how to get an SDS.
3. Classify. From Section 2 of each sheet, record the pictograms and hazard classes.
4. Remove what you do not need. Dispose of expired or surplus chemicals through appropriate routes; see Section 13.
5. Link to storage. Use the data to design segregated storage.
6. Assign owners. A named person per area keeps it current.

Keeping it current

• Require new products to be approved and added before purchase.
• Review the inventory at least annually, and after any process change.
• Reconcile against purchase records to catch unlisted products.
• Track SDS revisions; see SDS update requirements.
• Use barcodes or QR codes if you have many containers.

Regulatory reporting it can support

Inventories feed several other duties. US facilities with significant quantities of hazardous chemicals may have to report them to state and local emergency planning bodies under EPCRA (see SARA Title III and EPCRA), and some chemicals are reportable for TSCA or other programs (see EPA TSCA). Transport of chemicals off site brings in DOT rules. Check which thresholds and lists apply to you; the SDS Section 15 can point you to relevant ones, but it is not a complete check.

Tools

A spreadsheet works for small sites. Larger sites use inventory software with SDS linking. Whatever you use, make sure the data are searchable by product name, CAS number and location, and that the system can produce a list of what was held in a given area at a given date. The chemical index on this site can help you check hazards of common substances, but your own SDS is the authority for your products.

Worked scenario: a first inventory for a small workshop

A ten-person workshop has never kept a list. One person spends an afternoon walking the shop with a phone camera, photographing every label. They log each product in a spreadsheet with the name, location and hazard pictograms, and mark which products lack a sheet. Over the next week they request the missing sheets and file the ones that arrive. They also find five containers with no label, which they arrange to identify or dispose of, and two products that are no longer used, which they remove.

The result is a one-page list, a folder of sheets and a handful of cleaned-up shelves. That is already enough to run a training session on the real products and to answer an inspector's first questions.

Pitfalls to avoid

• Building a perfect database before collecting any sheets. Start simple and add fields later.
• Listing chemicals but not linking them to their sheets.
• Forgetting vehicles, outbuildings, janitorial closets and one-off project chemicals.
• Letting purchasing bypass the inventory, so that new products appear without review.

Frequently asked questions