Product Classification Standards: ETIM, ECLASS, GPC and UNSPSC

Short answer

Product classification standards are shared schemes that group products into classes and define the attributes each class must carry. ETIM and ECLASS describe technical products with detailed features, GS1 GPC classifies consumer goods for retail data exchange, and UNSPSC codes goods and services for procurement and spend analysis. Most manufacturers need more than one.

Key takeaways

ETIM and ECLASS define classes plus technical attributes, while GS1 GPC and UNSPSC focus mainly on categorisation.
ETIM 10.0 is current, with ETIM 11.0 scheduled for 1 December 2026; ECLASS 16.0 was released in November 2025.
GS1 GPC publishes new releases twice a year, in May and November, and is used in retail data pools.
Store classification once in a governed model and map it to each standard, which avoids parallel copies.

Why classification standards matter for product data

A classification standard gives trading partners a common vocabulary. When a wholesaler, retailer or marketplace receives a product, the class code tells its systems which attributes to expect, which units apply and how to place the item in search and navigation. Without a shared class, every customer requests a different template and supplier teams re-key the same facts many times.

Classification also drives internal value. Engineering teams use classes to find reusable parts, procurement uses them to group spend, and compliance teams use them to scope which regulations apply to which product families. A clean class assignment is the first input for product data quality rules, because completeness can only be measured against a defined attribute set.

How ETIM, ECLASS, GS1 GPC and UNSPSC differ

The four standards answer different questions and serve different industries.

Standard	Main scope	Structure	Typical users
ETIM	Technical products (electrical, HVAC, plumbing, building, shipbuilding)	Groups, classes, features and values	Manufacturers and wholesalers in installation trades
ECLASS	Industrial products and services across many sectors	Four-level hierarchy with properties, units and value lists	Industrial manufacturers, procurement, Industry 4.0 projects
GS1 GPC	Consumer goods traded in retail	Segment, family, class and brick, with brick attributes	Brand owners and retailers using GS1 data pools
UNSPSC	Goods and services for procurement	Five-level code hierarchy	Purchasing, e-procurement and spend analysis

ETIM and ECLASS are attribute-rich: a class arrives with a defined list of features, data types and units. GPC links attributes only at brick level, and the higher levels serve navigation. UNSPSC is mainly a coding scheme and carries few product attributes.

Current versions and release cycles

Version control matters because partners often request a specific release. Facts as of October 2026:

ETIM: ETIM 10.0 was published in December 2024. ETIM International moved to a two-year release cycle from ETIM 9.0, and ETIM 11.0 is scheduled for 1 December 2026 after a beta test period.
ECLASS: ECLASS 16.0 was released in November 2025, adding close to 1,000 new classes and more than 1,250 new properties. Around 23,300 definitions in this release were machine generated and labelled as such, an early example of AI support inside a standards body.
GS1 GPC: GS1 publishes GPC releases twice a year, in May and November. Bricks can be deprecated, so mappings need periodic review.
UNSPSC: managed by GS1 US for the UN Development Programme, with the current codeset downloadable at no cost.

Plan for upgrades. A new ETIM or ECLASS release can split classes, rename features or change value lists, and each change ripples into templates, validation rules and channel feeds.

Where classification lives in the PLM and PIM stack

In most architectures, PLM owns the engineering classification used for part reuse and change control, and PIM owns the commercial classification sent to channels. The PLM vs PIM boundary decides which system is the master for each attribute. A PIM system typically stores one internal taxonomy and maps it to ETIM, ECLASS or GPC per channel, then sends the result through product data syndication connectors.

Classification is also becoming relevant for regulation. Delegated acts under ESPR will define product groups, and the data required for a Digital Product Passport depends on which group a product falls into. Mapping internal classes to those groups early reduces later rework.

How to choose and implement a classification standard

Start from customer and channel demand. Installation wholesalers in Europe usually require ETIM, industrial buyers often request ECLASS, grocery and retail data pools require GPC bricks, and public or corporate procurement portals often ask for UNSPSC.

Practical steps:

Inventory which standards and versions each key customer requires.
Define one internal class model and maintain mappings to each external standard.
Assign class ownership to named data stewards per product family.
Automate validation so that mandatory class attributes block release when missing.
Budget for each release upgrade, including regression tests on channel feeds.

AI-assisted classification can propose class codes from descriptions and drawings, and accuracy is often good for well-described products. Treat such proposals as suggestions that a steward confirms. Independent directories such as PIM Vendors list PIM systems with native ETIM, ECLASS and GPC support, which helps when standards coverage is a selection criterion.

Frequently asked questions

Is ETIM or ECLASS better for a manufacturer?

Neither is better in general. The choice depends on customers. Electrical, HVAC and plumbing wholesalers in Europe mostly request ETIM, while industrial buyers and many automation suppliers request ECLASS. Many manufacturers maintain both, with mappings from one internal class model. Check customer requirements and the exact version they expect before investing.

How often do classification standards change?

Release cycles differ. GS1 GPC publishes twice a year, in May and November. ETIM follows a two-year cycle, with ETIM 11.0 scheduled for December 2026. ECLASS issues major releases periodically, the latest being 16.0 in November 2025. Each release can change classes and attributes, so plan regular mapping reviews.

Can AI classify products automatically?

AI models can suggest class codes from product names, descriptions and attributes, and suggestion accuracy is often high for well-documented products. Results degrade for ambiguous or new product types. Most organisations use AI to propose a class and route low-confidence cases to a data steward, keeping a log of who approved each assignment.

Sources

Reviewed 16 October 2026 by the PLM Vendors editorial team. Regulatory dates and vendor details change; check the sources for the latest position.