GB/T 12085.11-2022

Optics and photonics—Environmental test methods—Part 11:Mould growth (English Version)

Standard No.

GB/T 12085.11-2022

Language

Chinese, Available in English version

Release Date

2022

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 12085.11-2022

Replace

GB/T 12085.11-2010

Scope

This document describes the environmental test method for the optical and photonic mold growth test. This document applies to optical and photonic instruments, including mold growth tests on components from other fields such as mechanical, chemical and electronic equipment. This document is not intended for routine production inspections.

Introduction

Core changes in the new version of the standard

Comparison dimensions	2010 version	2022 new version
Scope of application	Pure optical instruments	Optical + photonic instruments
Temperature and humidity tolerance	±1.5℃	±0.5℃/h
Number of mold species	8 species	10 strain systems

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Key Experimental Parameter Control

Culture Medium Standard

• NF XPX105 Sterile Distilled Water Preparation
• Precise Control of Spore Concentration: 10?±2×10? cfu/mL
• ED57 Humidity Control: RH 96%±2%

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Instrument Protection Implementation Guide

Modular Protection Solution

Risk Points	Prevention and Control Measures	Validation Cycle
High Transmittance Membrane Layer	Tetramethylthiourea coating	14d accelerated aging
Sealed chamber	Molecular sieve drying system	1000h verification

GB/T 12085.11-2022 Referenced Document

• GB/T 12085.1 Optics and photonics—Environmental test methods—Part1: Definitions, extent of testing

GB/T 12085.11-2022 history

• 2022 GB/T 12085.11-2022 Optics and photonics—Environmental test methods—Part 11:Mould growth
• 2011 GB/T 12085.11-2010 Optics and optical instruments.Environmental test methods.Part 11:Mould growth
• 1989 GB/T 12085.11-1989 Optics and optical instruments--Environmental test methods--Mould growth

GB/T 12085.11-2022 -All Parts