I Inspect Industrial Gas for Air Products and Chemicals. The Real Problem Isn't Purity—It's Hidden Fees.

I think industrial gas has a trust problem, and it's not where most buyers look.

They look at purity. They look at delivery windows. They look at safety data sheets. I look at those too—I'm a quality and compliance manager at Air Products and Chemicals. Over the last four years, I've reviewed every gas certificate before it ships, roughly 1,200 items a year. Maybe 1,150, I'd have to check the system. I've rejected about 2% of first deliveries in 2024 due to mismatched paperwork or purity results that didn't match the batch record.

But the thing that makes me angriest isn't a bad batch. It's a quote that hides half the costs. Because if a supplier is willing to hide a fee, they're usually willing to hide a test result too. It's the same instinct.

What's not included is the first question

I've learned to ask what's NOT included before asking what's the price. That sounds basic. In B2B gas, it's not.

At the first congress on hydrogen sourcing I attended in 2022, a buyer told me he'd received five quotes for the same spec. The spread was about 40%. When he asked for itemized pricing, three vendors stopped returning his calls. He signed with the one that showed the full cost—even though it wasn't the lowest quote. That moment reshaped how I look at pricing.

Hidden fees are a quality issue

In my job, quality means the product matches the agreed spec. Pricing should work the same way: the final invoice should match the agreed quote. If it doesn't, that's a quality failure. Full stop.

I've seen quotes that looked 12% lower than the next option. Then the buyer got the final invoice with cylinder rental, hazmat surcharge, minimum order fee, gas management charge, and a return logistics fee. The savings disappeared. The surprise wasn't the price difference. It was how much hidden value came with the transparent option: a total that didn't move, a certificate that matched the lot, and a human being who answered the phone.

Before anyone fires off an angry email: I'm not saying every low quote is a trap. But the vendor who lists all fees upfront, even when the total looks higher, usually costs less in the end. Because you don't burn a ton of internal cycles re-approving invoices. You don't explain budget overruns to your CFO. That has a cost too.

Green hydrogen needs the same honesty

The bigger issue is green hydrogen. Air Products has put a lot behind this—the NEOM project, large-scale liquefaction, and a portfolio built around clean hydrogen supply. That's serious. But I worry about green becoming a label instead of a measurable claim.

Some buyers ask me whether green hydrogen air products are different from conventional industrial gases. The answer is no—the gas is the same. The difference is in the claims, the certificates, and the carbon accounting.

In 2023, I reviewed a proposal where a vendor called its product 100% green hydrogen. The certificate showed it was produced from natural gas with carbon capture. That can be legitimate under certain frameworks. But 100% green without qualification is not a quality claim—it's a marketing claim. Under the EU's Renewable Energy Directive and its delegated regulation on renewable fuels, renewable hydrogen has to meet a life-cycle emissions threshold of 28.2 gCO2eq/MJ (source: Delegated Regulation (EU) 2023/1184). And for fuel-cell use, hydrogen purity is covered by ISO 14687:2019, which sets limits for impurities like carbon monoxide, sulphur, and particulates. If a supplier can't show the test method behind those numbers, the number is not a spec. It's a hope.

That's why transparent carbon intensity matters. If a supplier says green but won't show the calculation, make them show it. If they say low-carbon but won't say what the carbon is, run. The same logic applies to a price: if they say the number but won't say what's in it, you don't have a quote. You have a question.

The cheap quote is the expensive one

Here's the argument that surprises people: low-price quotes are often a quality risk, not just a budgeting risk.

Let me walk through what happened in Q1 2024. We received a batch of argon cylinders where the analysis sticker claimed one purity level, but our incoming test showed it was below the contracted spec. Normal tolerance for that mix is a deviation of one part per million. The vendor said it was within industry standard. We rejected the batch, and they redid it at their cost. But the buyer had already lost time, and their production schedule had to be rebuilt. That quality issue cost us a $22,000 redo and delayed a launch. (Should mention: we had built in a buffer, but it still hurt.)

I've also been on the other side. I assumed same specifications meant identical results across vendors. Didn't verify. Turned out each vendor had slightly different interpretations of moisture content and oxygen content. The one with the cheapest price had the loosest interpretation. That's not a coincidence. If a supplier is cutting corners on how they measure quality, they're probably cutting corners on how they charge.

The most frustrating part of this: the same issues recur despite clear communication. You'd think written specs would prevent misunderstandings. But interpretation varies wildly. That's why I treat the invoice as part of the spec. If the final price doesn't match the original quote, the supplier has failed the same test as a gas that doesn't match its certificate.

We can't show all pricing — no, you can

I hear the objection a lot: our pricing model is complex. We can't itemize everything without giving away commercial secrets.

I get that. You don't need to publish production costs or expose internal margins. But you can show the buyer what they will pay before they pay it. That's not a secret. That's a contract.

If a supplier says trust us, the extra fee is normal, I've learned to translate that as we don't want to explain this. And if they won't explain it, I won't sign off on it. That's the same standard I apply to a certificate of analysis: if the data isn't there, the claim isn't real.

The bottom line

I'm not naive. Industrial gas pricing includes shipping, storage, purification, safety equipment, and credit terms. All of that can be itemized. Transparent pricing is not a back-office issue. It's the first quality check in the supply chain.

Air Products sells a lot more than hydrogen—welding gases, gas separation membranes, specialty chemicals. The materials are different. The trust issue is the same.

So if you're buying hydrogen, welding gas, or specialty chemicals, ask the supplier for a quote that lists every charge before you sign. Ask for the carbon intensity number behind the green label. Ask for a certificate that matches the lot that actually lands at your dock. And if a supplier says that's not how the industry works, remember this: I've seen it work.

Transparency is not about being perfect. It's about being willing to show your work. The supplier who does that is the one I'd trust with a 50,000-unit order. Oh, and with my reputation.

Bottom line: the real price of industrial gas is the final invoice. If you can't see it before you buy it, you can't measure the quality of the deal. So stop asking for the lowest price. Start asking what's not included.