GB/T 9989.2-2025 Active National standards

GB/T 9989.2-2025 Vitreous and porcelain enamels—Determination of resistance to chemical corrosion—Part 2:Determination of resistance to chemical corrosion by boiling acids,boiling neutral liquids,alkaline liquids and/or their vapours

GB/T 9989.2-2025 Vitreous and porcelain enamels—Determination of resistance to chemical corrosion—Part 2:Determination of resistance to chemical corrosion by boiling acids,boiling neutral liquids,alkaline liquids and/or their vapours

Publish Date: 2025-08-29 Implement Date: 2026-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 9989.2-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Daily-use enamel products

ICS Name: Enamel

Publish Date: 2025-08-29

Implement Date: 2026-03-01

Pages: 24 pages

Scope

This document describes the test method for evaluating the chemical resistance of enamel to boiling acid, boiling neutral liquids, alkaline liquids, and their vapors.
This method allows for the simultaneous determination of the chemical stability of enamel materials against liquid and gaseous media.
This document is applicable to testing the chemical resistance of enamel products and enamel glaze layers to boiling acid, boiling neutral liquids, alkaline liquids, and their vapors.

Development Information

Word Count: 34 Thousand words Pages: 24 pages

Same series standard

GB/T 9989.3-2025 Vitreous and porcelain enamels—Determination of resistance to chemical corrosion—Part 3:Determination of resistance to chemical corrosion by alkaline liquids using a hexagonal vessel or a tetragonal glass bottle

Replace the following standards

GB/T 9989.2-2015 Vitreous and porcelain enamels—Determination of resistance to chemical corrosion—Part 2:Determination of resistance to chemical corrosion by boiling acids,boiling neutral liquids and/or their vapours

Referenced Standards

GB/T 6031-1998 Rubber,vulcanized or thermoplastic—Determination of hardness (hardness between 10 IRHD and 100IRHD) GB/T 6031-2017 Rubber,vulcanized or thermoplastic—Determination of hardness(hardness between 10 IRHD and 100 IRHD) GB/T 6579-1986 Laboratory glassware—Methods for thermal shock test GB/T 6579-2007 Laborator glassware—Thermal shock and thermal shock endurance test methods GB/T 6682-1992 Water for analytical laboratory use—Specification and test methods GB/T 6682-2008 Water for analytical laboratory use—Specification and test methods GB/T 12804-1991 Laboratory glassware—Graduated measuring cylinders GB/T 12804-2011 Laboratory glassware—Graduated measuring cylinders GB/T 28212-2011 Laboratory glassware—Condensers GB/T 348433.3 GB/T 38166-2019 Production of specimens for testing enamels on sheet steel,sheet aluminium and cast iron

Adopt standards

ISO 28706-2:2017

Related Standards

GB/T 7996-1987 Replaced

GB/T 7996-1987 Nominal volume and nominal diameter for glass-lined vessel

Publish Date: 1987-07-01

GB/T 11418-1989 Active

GB/T 11418-1989 Determination of resistance to heat of vitreous and porcelain enamels

Publish Date: 1989-07-04

GB/T 11419-1989 Replaced

GB/T 11419-1989 Determination of resistance to thermal shock of vitreous and porcelain enamels

Publish Date: 1989-07-04

GB/T 11420-1989 Replaced

GB/T 11420-1989 Measurement of specular gloss of vitreous and porcelain enamels

Publish Date: 1989-07-04

GB/T 13484-1992 Replaced

GB/T 13484-1992 Enamelled ware in contact with food

Publish Date: 1992-06-05

GB/T 13485-1992 Abolished

GB/T 13485-1992 Standard test method for lead and cadmium released from enamelled ware in contact with food

Publish Date: 1992-06-05