ISO 22042:2021/Amd 1:2024
Blast chiller and freezer cabinets for professional use — Classification, requirements and test conditions AMENDMENT 1

Standard No.

ISO 22042:2021/Amd 1:2024

Release Date

2024

Published By

International Organization for Standardization (ISO)  IX  /  ISO

Latest

ISO 22042:2021/Amd 1:2024

Introduction

Core changes of the standard revision

Revised items	Original standard requirements	Changes to Amendment 1
Definition of test load	Not clearly defined	New clause 3.10: Test load refers to the total weight of the test food in all test containers (kg)
Cooling time requirements	Specify the specific time in clause 4.1	Moved to the new clause 4.3, 120 minutes for Quick freezer, 270 minutes for Quick freezer
Test load deviation	Not specified	5.6.4 New: Deviation between test load and full capacity ≤3%

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Analysis of key technical points

1. Precise definition of test load

The new standard clearly defines for the first time the calculation method of the test load through Clause 3.10, requiring that the total weight of food in all test containers be included. Things to note in actual application:

• The test food specified in the standard must be used (usually a protein matrix with a specific moisture content)
• The weighing system must achieve an accuracy of ±0.1kg

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2. Adjustment of time requirement structure

The time requirement in the original clause 4.1 was separated into clause 4.3 to highlight its normative nature:

Application case in the catering industry: When a chain catering group upgraded its rapid freezer, it adjusted the fan speed to shorten the time it took to reach the core temperature standard from 125 minutes to 118 minutes, which fully met the requirements of the new standard.

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Implementation Recommendations

Equipment Manufacturers

1. Upgrade the load detection algorithm of the control system to ensure 3% capacity deviation control
2. Clearly mark the definition of full capacity in the technical documentation

End Users

1. Regularly calibrate the weighing system, preferably once a month
2. Establish a test load record archive and keep it for at least 3 years

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Analysis of Standard Evolution

This revision reflects three major trends in the industry:

• Precision: Reduce test errors through quantitative indicators
• Modularity: Separate time requirements and basic terms
• Traceability: Strengthen test process record requirements

ISO 22042:2021/Amd 1:2024 history

• 2024 ISO 22042:2021/Amd 1:2024 Blast chiller and freezer cabinets for professional use — Classification, requirements and test conditions AMENDMENT 1
• 2021 ISO 22042:2021 Blast chiller and freezer cabinets for professional use - Classification, requirements and test conditions

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