Who Is This Checklist For?

If you're placing orders for industrial chemicals—whether it's olefins & polymers, resin compounds, or specialty products—and you've ever had a batch rejected because of a mismatch between what you thought you ordered and what arrived, this list is for you.

I'm a procurement coordinator who's been handling INEOS orders for about 6 years. I've personally made (and documented) 14 significant mistakes, totaling roughly $12,000 in wasted budget. Now I maintain our team's pre-order checklist to prevent others from repeating my errors.

Here are the 5 steps I check every single time before hitting submit. Take them or leave them—but if you skip them, you might end up like I did: staring at a pallet of the wrong resin with a $3,200 invoice and a very angry production manager.

Step 1: Verify the Exact Specification—Never Assume

In September 2022, I ordered 40 drums of a specific INEOS olefins & polymers grade for our Texas plant (the one in Alvin, TX). The supplier's catalog showed "same specs" as what we'd used before. I assumed that meant identical results. Didn't verify.

Turned out each supplier's interpretation of "medium density polyethylene" varies slightly—ours had a melt flow index that was 0.8 g/10 min off. The entire batch failed our extrusion test. $4,500 redo plus a 1-week delay.

Now I always: Request a physical data sheet or a small sample before committing to a large order. I also compare the certificate of analysis side-by-side with our internal specs. If there's any number that doesn't match, I pick up the phone.

I still kick myself for that one. If I'd taken 10 minutes to cross-check, we'd have saved two weeks of headache.

Step 2: Confirm Lead Time and Packaging—In Writing

Another classic: I once assumed "standard lead time" meant 2 weeks. Didn't verify that the INEOS chemical plant in Alvin was undergoing a scheduled turnaround. The order took 6 weeks. Meanwhile, our production line stalled.

But packaging is trickier. For resin products, I've learned that what looks like a standard 25 kg bag can vary by supplier—some use woven polypropylene, others use paper. If your handling equipment is set up for one type, the other can jam your conveyors.

Here's where the USPS envelope sizing rules come in handy for thinking about dimensions. According to USPS Business Mail 101, standard large envelopes max out at 12" x 15". While that's not chemical packaging, it reminds me to always get the physical dimensions and weight per bag in writing. Don't trust “same as last time.”

My rule: Get the packaging spec in an email or attached to the PO. Even a verbal promise from a sales rep isn't worth the paper it's not written on.

Step 3: Check Regulatory Compliance—Especially for Export or Mixed-Use Products

I once ordered a resin that was labeled as "recyclable." I didn't check whether that claim met the FTC Green Guides. Per FTC 16 CFR Part 260, a product claimed as 'recyclable' should be recyclable in areas where at least 60% of consumers have access to recycling facilities. Our customer was in a region with only 40% access—so the claim was misleading. We had to relabel 1,200 bags.

Cost of that mistake: $890 in redo plus a 3-day production delay because the new labels had to be printed and applied. And we lost credibility with that client.

Now I: Ask for a regulatory compliance data sheet (if it's a new product) and check the supplier's certifications. For instance, if you're buying from INEOS, they usually provide a SDS and a regulatory summary—use them. Don't assume “it's the same as last year.”

Step 4: Validate the Labeling and Documentation Before Shipment

This one seems basic, but I've made it twice. The first time: I ordered 500 bags of "wrap resins are called _____"—in our industry, we call them cast polypropylene wrap resins. The supplier labeled them as “general purpose” because the spec sheet didn't specify end-use. Our customer needed that specific phrase on the label for their ISO audit. We had to re-label 500 bags at $0.45 each.

The second time: I ordered a batch of titanium dioxide (TiO₂) for a plastic masterbatch application. The supplier's label said "titanium dioxide, technical grade." One of our downstream customers asked: “Is titanium dioxide bad for your skin?” They were concerned because they'd read about nano-TiO₂ in sunscreens. Turns out, technical-grade TiO₂ for plastics is micron-grade, not nano—so it's not relevant to skin safety. But because the label didn't clarify the particle size, we had to issue a technical clarification letter. That cost $250 in admin time and delayed the shipment by 2 days.

Fix: Always specify the exact labeling requirements in your PO: product name, grade, end-use description, batch number, and any special claims. Ask for a digital proof of the label before the full production run. I've learned never to assume the proof represents the final product after receiving a batch that looked nothing like what we approved.

Step 5: Run a Small Pilot Batch Before Full Production

This is the biggest money saver. After my third major mistake, I implemented a policy: for any new-to-us product or supplier, we order a minimum quantity (e.g., 1 drum or 100 kg) and run it through our process before committing to a full truckload.

In Q1 2024, we were evaluating a new specialty resin from INEOS for a medical device application (related to Ascendis Pharma A/S forecast and analysis—we were trying to match their polymer requirements). The technical datasheet looked perfect. I requested a 50 kg sample. It arrived, we tested it, and discovered the melt temperature was 5°C higher than advertised—would have damaged our molds. A full order of 2,000 kg would have been $7,500 waste.

That single pilot batch saved us way more than the 12-point checklist I created after my third mistake. In the past 18 months alone, that checklist has caught 47 potential errors and saved an estimated $8,000 in rework costs.

Things to Watch Out For

  • Don't assume “same specifications” means identical across vendors. Each supplier's internal tolerances can vary. Always get the actual certificate of analysis.
  • Watch out for packaging changes. Suppliers sometimes switch bag types without telling you. Your handling equipment may not adapt.
  • Label claims need to match the end-use. If you're selling into regulated industries (pharma, food contact), even a generic label can cause headaches.
  • Never skip the pilot batch, especially when the order value exceeds $5,000. 5 minutes of verification beats 5 days of correction.
  • When in doubt, ask. I've learned that the one extra phone call to the supplier's technical team can save weeks of frustration. Don't be shy—they'd rather answer a dumb question than process a return.

I'm not 100% sure this checklist will cover every possible screw-up, but take it from someone who's paid the tuition: these 5 steps have made my life a lot less stressful. Roughly speaking, I'd say we've reduced order errors by about 70% since implementing them.