A procurement manager searches your company on Google before answering your quote.

The minimum entry requirement in most industrial supply chains. Having them doesn't mean the same as having an integrated management system. When all three coexist in a single IMS, the documentary regime and audit cycles are different from when they run separately.

Entry requirement for Tier 1 and Tier 2 supplier panels. It's not ISO 9001 with additional modules: it has PPAP, APQP and FMEA as native system tools. Without IATF, the part approval process doesn't begin.

Unlike ISO 9001, requirements cannot be excluded due to inapplicability. Traceability is complete, change control is strict, and the supplier is part of the device manufacturer's quality system. Without ISO 13485 you don't enter as a qualified supplier in the medical chain.

The first filter in any aerospace RFQ is a valid AS9100 certificate. It adds risk management, configuration control and FOD prevention on top of ISO 9001. Without it, the conversation doesn't reach material specifications.

Specific to civil nuclear supply chain suppliers. Full traceability, product qualification and record management for plant lifetime. An elastomer supplier for nuclear handles material qualification processes that can last two to three years.

IMDS is the global database where OEMs require full composition declaration for every component before approval. PPAP is the documentary process that closes part approval for series production. No IMDS, no panel entry. No PPAP, no production.

HL1, HL2, HL3 are not a generic severity scale: they correspond to risk categories based on service type. Underground metro requires HL3. A material that meets HL2 is not valid for HL3 even if it's the same base compound. The railway buyer specifies the exact level, not "fire-resistant".

Validates the material composition, not the final product or the manufacturing process. It is not equivalent to medical grade. If the client also needs NSF/ANSI 61 for drinking water distribution in the North American market, these are independent validations that don't overlap.

General safety principle for food contact materials. For elastomers without specific EU harmonisation, validation falls under national legislation: BfR IX and XV in Germany, Arrêté 25/11/92 in France. Knowing which documentation applies based on the target market is part of the job.

They are not equivalent and one does not replace the other. USP Class VI evaluates systemic response and irritation: it's a starting point, not the finish line. ISO 10993 is a family of standards applied selectively based on nature of contact and duration of exposure. MDR 2017/745 determines which parts are mandatory for the device's CE marking.

The distinction between sour service and sweet service completely changes elastomer selection. A seal in sour service without NACE MR0175 qualification is an integrity issue, not a technical preference. The upstream integrity engineer doesn't search for "acid resistant": they search for the specific H₂S qualification.

An aeronautical component is not approved by generic material properties. It is qualified against the AMS that appears in the equipment manufacturer's specification. The AMS reference must appear in the material documentation. It cannot be inferred from equivalent mechanical properties.

These are legal obligations of the manufacturer, not voluntary certifications. When a buyer asks for "the REACH certificate", it doesn't exist as such. What exists is the supplier's declaration of conformity. That difference matters when managing approval documentation.

Classifies equipment by fluid type and operating conditions. A seal manufacturer for chemical process or oil & gas needs documentation aligned with the PED category of the equipment where they're fitted, not just with material properties.

A seal in an ATEX environment has no marking of its own, but the equipment manufacturer needs materials with electrical behaviour documentation: surface conductivity, volume resistance, absence of static charge accumulation. The buyer doesn't search for "ATEX compatible": they search for the specific values in the technical datasheet.

It is not a quality certification or a European approval seal. It is the manufacturer's declaration that the product meets the applicable directives. Machinery, Low Voltage, Pressure Equipment, Medical Devices: each sector has its directive, its evaluation procedure and its specific technical documentation.