Plate type

Plate type heat exchange units for process and HVAC duty

BIS QCO APPLICABLE · ISI MARK SCHEME · IS 11329

HSN 8419 50 92 (plate type heat exchange units) is covered by a Bureau of Indian Standards Quality Control Order. Conformity to IS 11329:2018 is mandatory under the ISI Mark Scheme with effect from 01 October 2023, pursuant to the Air Conditioner and Its Related Parts Hermetic Compressor and Temperature Sensing Controls (Quality Control) Amendment Order 2025. No separate customs-clearance overlay beyond the BIS obligation has been identified for this tariff line.

What this is

HSN code

8419 50 92

Chapter

84 · Nuclear reactors, boilers, machinery and mechanical appliances; parts thereof

BIS QCO

Applicable · ISI Mark Scheme · CM/L required

Indian Standard

IS 11329:2018 · effective 01-10-2023

Applicable Partner Government Agencies

BISBIS·Bureau of Indian Standards

Compliance steps

1
Source only from a Bureau of Indian Standards CM/L-licensed manufacturer holding a current licence against IS 11329:2018 for finned type heat exchangers used in room air conditioners. Verify the supplier's CM/L number, licensed product scope, and manufacturing facility address on the BIS online register before placing the purchase order.
IS 11329:2018 applicable on finned type heat exchangers for room air conditioners with effect from 01-10-2023 · S.O. 4354(E) dated 05-12-2019 and amendments
2
Ensure every heat exchange unit bears the ISI mark and the supplier's CM/L number under Scheme-I of Schedule-II to the BIS (Conformity Assessment) Regulations, 2018. Marking must appear on the unit itself; marking on packaging alone does not satisfy the statutory requirement.
Scheme-I of Schedule-II to the BIS (Conformity Assessment) Regulations, 2018 · Air Conditioner and Its Related Parts Hermetic Compressor and Temperature Sensing Controls (Quality Control) Amendment Order 2025
3
Review the exemption provisions under paragraph 2 of the controlling Quality Control Order and each successive amendment notification. Retain documentary evidence of the applicable exemption basis before shipment if the consignment falls within an exempted category.
S.O. 4354(E) dated 05-12-2019; S.O. 1518(E) dated 18-05-2020; S.O. 4671(E) dated 22-12-2020; S.O. 5095(E) dated 08-12-2021; S.O. 5972(E) dated 21-12-2022; S.O. 32(E) dated 02-01-2024; S.O. 695 dated 11-02-2025; S.O. 1815(E) dated 17-04-2025
4
Quote the supplier's BIS CM/L number on the bill of entry and ensure it matches the model and manufacturing facility in the BIS register on the date of filing. Customs verifies the CM/L in real time; an absent, expired, or scope-mismatched licence triggers consignment detention.
BIS Act, 2016 · Customs Act, 1962 · Air Conditioner and Its Related Parts Hermetic Compressor and Temperature Sensing Controls (Quality Control) Amendment Order 2025

A word of counsel

The single most common error on this tariff line is treating IS 11329:2018 as a broad heat-exchanger standard covering all plate-type configurations — shell-and-tube, brazed-plate, gasketed-plate — when the QCO scope as stated in the CCR is specifically finned type heat exchangers for room air conditioners. Importers sourcing plate heat exchangers for general process or refrigeration duty who incorrectly assume the same CM/L covers their variant risk port detention when customs queries the licensed product-scope description against the declared goods. Confirm in writing that the supplier's CM/L explicitly covers the specific configuration and duty of the units being imported.

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Frequently asked

Does HSN 8419 50 92 require BIS certification?

Yes. Finned type heat exchangers for room air conditioners classified under this tariff line require conformity to IS 11329:2018 under the ISI Mark Scheme with effect from 01 October 2023; import is permitted only from manufacturers holding a current BIS CM/L licence.

Do exemptions exist under the controlling Quality Control Order?

Yes. Paragraph 2 of S.O. 4354(E) and each subsequent amendment notification sets out exemption categories. Importers must review the latest amendment — currently S.O. 1815(E) dated 17-04-2025 — and document the applicable exemption basis before shipment.

Does the IS 11329:2018 QCO obligation cover all plate heat exchanger types, including brazed-plate and gasketed-plate units?

The CCR specifies the QCO scope as finned type heat exchangers for room air conditioners. Other plate configurations not within that notified scope may not attract the same CM/L obligation; the supplier's CM/L scope description must be verified against the specific product type being imported.

Does a single CM/L licence cover all product variants and manufacturing facilities of the supplier?

No. A CM/L licence is scope-specific by product configuration, size range, and licensed manufacturing facility; heat exchangers outside the licensed scope or produced at an unlicensed plant are not covered.

Last verified against gazette notifications: 2026-05-18. Source: BIS / Indian Customs CUSDATA.