Isothermal reefer container prepared for accredited thermal testing at COCH Kraków

Accredited testing of isothermal containers

Accredited testing of land, sea and rail refrigerated containers in compliance with the ATP Agreement and ISO 1496-2.

AB 308
PCA Accreditation
-40°C … +30°C
Measurement range
ISO 1496-2
Standard compliance
ATP
Intl. agreement

What is isothermal container testing and who must carry it out?

In an era of global logistics and rising requirements for temperature-sensitive goods, COCH Kraków — as the only unit in Poland — offers a full scope of accredited isothermal container testing. That foundation supports safe transport of food, pharmaceuticals and chemicals.

COCH Kraków is the only laboratory in Poland with full PCA AB 308 accreditation scope for sea, rail and road containers, combined with ILAC MRA recognition. Test reports are recognised across the ILAC zone — more than 100 countries.

We test new containers placed on the market and units undergoing periodic inspection (typically every 3 years under ATP), as well as equipment for pharmaceutical transport under GDP. The laboratory operates under ISO/IEC 17025:2017.

Our tests confirm the ability of your equipment to maintain a rigorous microclimate anywhere in the world, regardless of external conditions.

  • Temperature and humidity control: verification of stable conditions (from -40 °C to +30 °C).
  • Thermal insulation: precise determination of the heat transfer coefficient K.
  • Mechanical resistance: structural testing for demanding international transport conditions.
Accredited Laboratory
AB 308 (PCA)
International Recognition
ILAC MRA · 100+ krajów
Isothermal container testing — K-coefficient measurement at COCH Kraków

Scope of testing & offer

The widest accreditation scope in Poland — road, rail, sea and air transport.

Refrigerated containers

What is a Reefer container and which parameters do we verify?

  • Temperature & humidity control: Precise maintenance of parameters necessary for product freshness.
  • Thermal insulation: Verification of wall, door and floor tightness to minimise energy losses.
  • Mechanical resistance: Structural testing for shocks in sea and rail transport.
  • ATP compliance: New refrigerated containers placed on the market must meet ATP requirements — a prerequisite for international use.
Container dimensions and specifications

We carry out accredited testing of thermally insulated transport equipment under the ATP Agreement and under PN-EN 17066-1 and PN-ISO 1496-2 — including refrigeration and heating units.

K-coefficient (heat transfer)

Determined by precisely heating the container interior and measuring energy losses through the walls — the basis for ATP and ISO insulation classes.

Refrigeration / heating unit efficiency

Calorimetric chamber method to determine real cooling or heating capacity and ATP functional classes A–F.

Airtightness tests

Pressure-method measurements to detect even microscopic leaks in insulation or the refrigeration installation.

Direct measurements & thermal mapping

Verification of geometric dimensions and temperature distribution inside the cargo space (incl. GDP/DPD needs).

PN-EN 17066-1 — insulated transport equipment

Containers, trucks, trailers, tankers, vans, wagons, land containers, small containers and insulated packaging — with or without independent temperature control, plus refrigeration/heating units.

PN-ISO 1496-2 — Series 1 thermal containers

ISO Series 1 isothermal containers for intermodal sea, rail and road cargo, including units with refrigeration or heating appliances.

GDP / pharmaceutical transport

Testing of equipment used to distribute human and veterinary medicinal products — critical ranges such as 2–8 °C or 15–25 °C per PKN-DIN SPEC 91323 / GDP.

Standards applied

ATP Agreement, PN-EN 17066-1, PN-ISO 1496-2 and PKN-DIN SPEC 91323:2019-08 — recognised by control bodies, shipowners and rail carriers.

How does container testing proceed?

From installation in the chamber to the accredited report and certificate.

Typical testing path at COCH

1Installation in the measurement chamber

The container is installed in the COCH measurement chamber and prepared for accredited thermal testing under controlled conditions.

How to order testing

This service has no public download forms. Contact the laboratory by email, use the contact page, or place an order through the order portal.

Contact the laboratory

Write to us about the service scope, sample delivery and timeline. We prepare an individual quote after the enquiry.

Order portalContact page

Prefer the order portal for a structured request, or the contact page for general laboratory enquiries.

Frequently asked questions

Everything you need to know about isothermal container certification.

In accordance with the ATP Agreement and international ISO standards, the first testing of a new refrigerated/isothermal container is usually carried out 6 years after the production date. Subsequent periodic tests for certificate extension are performed every 3 years. In the case of intensive operation or modernisation of the unit, earlier verification of insulation parameters is recommended. COCH Kraków carries out both initial testing of new containers and the periodic inspections required under ATP.

Accreditation AB 308 – PCA & ILAC MRA

COCH Kraków is the only body in Poland authorised to issue ATP certificates. PCA accreditation AB 308 with ILAC MRA recognition guarantees international acceptance of all test reports and certificates.

PCA AB 308

PCA · ILAC MRA · ACCREDITATION

Refrigeration Equipment Laboratory AB 308

The laboratory holds PCA accreditation with ILAC MRA international recognition. Certificates issued by COCH are mutually recognised by all signatory countries of the ATP Agreement worldwide.

Contact the laboratory

Arrange accredited container testing or ask a technical question.

mgr inż. Dorota Niedojadło

Laboratory Manager

Location & Directions

Centralny Ośrodek Chłodnictwa „COCH”

ul. Juliusza Lea 116, 30-133 Kraków

Tests available Mon–Fri, 7:00–15:00

SEMI-TRAILER ENTRY: GATE NO. 2

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Need container testing?

Contact our specialists to schedule accredited testing in compliance with ATP and ISO standards.