Plate type

Plate type heat exchange units for industrial and HVAC duty

BIS QCO APPLICABLE · ISI MARK SCHEME · IS 11329

HSN 8419 50 12 (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 read with S.O. 4354(E). No separate customs-clearance overlay applies beyond the BIS obligation.

What this is

HSN code

8419 50 12

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. Verify the supplier's CM/L number, licensed product scope, and licensed manufacturing facility on the BIS online register before placing the purchase order.
IS 11329:2018 · Air Conditioner and its Related Parts Hermetic Compressor and Temperature Sensing Controls (Quality Control) Amendment Order 2025 · S.O. 4354(E) dated 05-12-2019
2
Ensure each 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. The mark must appear on the product itself, not packaging alone.
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 QCO notifications — S.O. 4354(E), S.O. 1518(E), S.O. 4671(E), S.O. 5095(E), S.O. 5972(E), S.O. 32(E), S.O. 695, and S.O. 1815(E) — as amended from time to time. Document the applicable exemption basis in writing if any carve-out is claimed.
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, supported by the CM/L certificate and product test reports against IS 11329:2018. Customs verifies the CM/L in real time against the BIS register; an absent, expired, or scope-mismatched licence triggers consignment detention.
BIS Act, 2016 · BIS (Conformity Assessment) Regulations, 2018 · Customs Act, 1962

A word of counsel

The single most common error on this tariff line is importing plate type heat exchangers on the assumption that the BIS QCO scope is limited to air-conditioner finned coils, leaving shell-and-tube, spiral, or brazed-plate variants from a separate manufacturing facility unlicensed. IS 11329:2018 covers construction, performance, and safety requirements across heat-exchanger configurations; a CM/L licence is scope-specific to the product configuration and manufacturing facility. Importers who switch to a variant or plant not covered by the licensed scope face detention even where the supplier holds a CM/L for an adjacent product line.

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Frequently asked

Does HSN 8419 50 12 require BIS certification?

Yes. Finned type heat exchangers for room air conditioners under this tariff line require conformity to IS 11329:2018 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.

Are there any exemptions from the BIS QCO obligation for heat exchangers under this tariff line?

Exemptions are set out in paragraph 2 of S.O. 4354(E) and its successive amendment notifications through S.O. 1815(E) dated 17-04-2025. Each claimed exemption must be documented in writing at the time of customs filing.

Does the IS 11329:2018 scope cover only finned-type heat exchangers used in room air conditioners?

The CCR cites IS 11329:2018 in the context of finned type heat exchangers for room air conditioners; the standard itself covers shell-and-tube, plate, spiral, and brazed-plate configurations for process, refrigeration, and HVAC duty. The licensed CM/L scope must match the specific configuration being imported.

Does a single CM/L licence cover all heat exchanger configurations and manufacturing plants of a supplier?

No. A CM/L licence is specific to the licensed product configuration, size range, and manufacturing facility; variants or plants not covered by the licence scope are not authorised, and customs detention follows on a scope mismatch.

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