Before the Lonza PO Goes Out: An Admin Buyer's Checklist for SDS, Specs, and Total Cost

Who should use this checklist

This checklist is for people who manage chemical purchasing but don't spend their day at a lab bench. I'm the office administrator for a 180-person specialty manufacturing site. I place orders across maintenance, QC, and production—roughly $400,000 per year across eight or so vendors. I report to operations and finance, which is another way of saying I get blamed when a material arrives late and when it arrives on time but without the right paperwork.

It took me about three years and several expensive corrections to realize that the purchase order starts with documents, not with price. If you're about to order from the Lonza official website, or from a manufacturer that uses similar quality systems, run through these seven steps first.

The checklist

1. Put a usable specification on paper

Start by asking the requester for grade, concentration, product code, packaging, and quantity. A chemical name is not a spec. For example, sulfuric acid has the formula H2SO4, and the chemical properties of sulfuric acid include strong acidity, corrosivity, and a strongly exothermic reaction when mixed with water. But a 0.5 N volumetric solution and a 93% industrial grade are not the same purchasing decision. The product code and grade need to match the end use. I treat this as a non-negotiable first step.

2. Search from the manufacturer's official website

Before I talk to a distributor, I search from the manufacturer. If the product is a Lonza item, I use the Lonza official website at lonza.com. A distributor can make buying easier and sometimes offers better payment terms, but the official source is the place to verify active product names, grades, packaging options, and documentation. The phrase 'Lonza official website' may be the search you use, but check the URL once you're there; a third-party page can show old product data above the official result.

3. Pull the Lonza SDS before you compare prices

When I look for a safety data sheet, I don't read the whole PDF like a textbook. I check Section 1 for product identifier, Section 2 for hazard classification, Section 7 for handling and storage, and Section 14 for transport information. A current SDS should be in the 16-section format and include a revision date. According to OSHA's Hazard Communication Standard (osha.gov), the SDS is organized into that structure; I use that as a quick check.

I didn't always read SDSs before ordering. In 2024, a lower-price delivery sat at our receiving dock because the vendor sent an outdated version; the transport classification had changed, and our safety coordinator wouldn't accept it until we got the current one. The delay ate the savings. If I'm ordering a Lonza product, I now locate the Lonza SDS for the exact product code before I request a quote.

4. Compare total cost, not unit price

Once the spec and SDS are settled, I compare delivered cost. Total cost of ownership includes base price, freight, hazmat charges, document fees, and any likely delay cost. If a quote says it doesn't include shipping, that's a starting number, not a price. I ask each supplier to quote the same product delivered to our dock. Sometimes the lowest unit price becomes the highest total cost after accessorial charges.

5. Ask about the application context

If a product is headed into a process rather than to a lab bench, I include the intended application on the RFQ. For example, a request that says 'used in ethylene production' is still under-specified. It might mean a desiccant for drying, a corrosion inhibitor for cooling water, or a process chemical for acid gas removal. Each use raises different compatibility and safety questions, and each grade may differ. If I send just the phrase, I'm asking the supplier to guess. The same rule applies broadly: the more specific the application, the more useful the quote. And if the supplier's technical people ask about the application, that's a good sign, not a delay.

6. For pigments, order by color index or product code

Color requests can be tricky. An internal user once asked me, 'What are the primary colors of pigment?' In modern printing, the answer is cyan, magenta, and yellow, with black used as the key color. Traditional paint instruction often says red, blue, and yellow instead. Neither answer identifies a product to order. Pigment purchasing needs a Color Index name, an exact product code, particle size, dispersibility, or other technical data from the supplier. A common color word is only the starting point. If I order a 'cyan pigment' without those details, I'm asking the supplier to interpret a vague request.

7. Save a document trail before you send the PO

Once I know the product code, SDS, and price, I store the relevant documents in the same folder as the purchase order. If a certificate of analysis is required, I request it before the PO, not after delivery. I also note the SDS revision date on the PO. In an audit or an incoming inspection, a document without a date is not much better than no document.

Reminders I keep for myself

If I look back at the most expensive order mistakes I've dealt with, the pattern is usually a low price plus thin documentation. The vendor got the money for the order, but my company paid extra time, extra freight, and extra risk. I don't use that math anymore. I check the official source first, ask the application question second, and add the total delivered cost last.

The next time you need to place a chemical order—whether you're checking the chemical properties of sulfuric acid or the color match of a pigment—start from a reliable source. If the product is a Lonza material, that source is the Lonza official website, and the Lonza SDS should match the exact product code. The unit price can wait until the rest of the order is clear.