--- title: Cleanroom and Pharmaceutical Blog | EU GMP Annex 1 Update description: EU GMP Annex 1 Update | Gain insights into the latest happenings in the world of cleanroom technology and equipment. --- [![analytichem_Logo+claim_RGB](https://www.cherwell-labs.co.uk/hs-fs/hubfs/analytichem_Logo+claim_RGB.png?width=7907&height=1706&name=analytichem_Logo+claim_RGB.png "analytichem_Logo+claim_RGB")](https://www.cherwell-labs.co.uk/) [![analytichem_Logo+claim_RGB](https://www.cherwell-labs.co.uk/hs-fs/hubfs/analytichem_Logo+claim_RGB.png?width=7907&height=1706&name=analytichem_Logo+claim_RGB.png "analytichem_Logo+claim_RGB")](https://www.cherwell-labs.co.uk/) [![50th Logo Cherwell logo final](https://www.cherwell-labs.co.uk/hubfs/50th%20Logo%20Cherwell%20logo%20final.svg "50th Logo Cherwell logo final")](https://www.cherwell-labs.co.uk/50-years-of-cherwell) Search # Our Blog ### AnalytiChem UK (formerly Cherwell Laboratories) is a leading supplier of prepared microbiological media and environmental monitoring instrumentation for the pharmaceutical and related industries. ### I want to read about Select Option *By Martin Sketchley* #### Data Integrity in Environmental Monitoring – Locking Plates vs Standard Plates In this blog, we’ll discuss: - The critical role of data integrity in regulatory compliance and microbial monitoring - The challenges of manual data entry with traditional settle and contact plates - The benefits of side labelling locking plates with GS1 DataMatrix codes for faster and more efficient... [Read More](https://www.cherwell-labs.co.uk/cherwell-labs-post/data-integrity-environmental-monitoring-locking-plates-vs-standard-plates) ![GPT guide cta-min-1](https://www.cherwell-labs.co.uk/hs-fs/hubfs/GPT%20guide%20cta-min-1.png?width=300&height=196&name=GPT%20guide%20cta-min-1.png "GPT guide cta-min-1") #### Growth Promotion Testing: A Guide to Good Practices Get an in-depth understanding of key considerations and best practices when undertaking growth promotion testing (GPT). [![Download Guide](https://no-cache.hubspot.com/cta/default/2885977/5115d7a2-703f-4f11-b1f5-447e516585fc.png)](https://cta-redirect.hubspot.com/cta/redirect/2885977/5115d7a2-703f-4f11-b1f5-447e516585fc) [ *By Gill Power* #### Cherwell launches Redipor® TwistLock Plates To Enhance Sample Security ](https://www.cherwell-labs.co.uk/cherwell-labs-post/cherwell-launches-redipor-twistlock-plates-to-enhance-sample-security-in-microbial-environmental-monitoring) [ *By Gill Power* #### Cherwell supports microbiological environmental monitoring best practices conference ](https://www.cherwell-labs.co.uk/cherwell-labs-post/cherwell-supports-microbiological-environmental-monitoring-best-practices-conference) [ *By Martin Sketchley* #### Cherwell's new video series: The Future of Environmental Monitoring ](https://www.cherwell-labs.co.uk/cherwell-labs-post/announcing-cherwells-new-video-series-the-future-of-environmental-monitoring) [ *By Andy Whittard* #### Cherwell: Review of 2023, Look-ahead for 2024 ](https://www.cherwell-labs.co.uk/cherwell-labs-post/cherwell-review-2023-look-ahead-2024) [ *By Gill Power* #### RMM unlocked with Biofluorescent Particle Counters Article ](https://www.cherwell-labs.co.uk/cherwell-labs-post/rmm-unlocked-with-biofluorescent-particle-counters-article) [ *By Gill Power* #### Cherwell to Participate in Sterile Product Manufacturing Think Tank Discussions ](https://www.cherwell-labs.co.uk/cherwell-labs-post/cherwell-to-participate-in-sterile-product-manufacturing-think-tank-discussions) ### Sign Up for our Blog We promise that we won't SPAM you. #### What's next #### Recent news [![Specialist products for boosting microbial EM protocol reliability spotlighted by AnalytiChem UK at Pharmig 2025](https://www.cherwell-labs.co.uk/hs-fs/hubfs/Redipor%20TwistLock%20Contact%20Plates%20with%20GS1%20DataMatrix%20Codes.png?width=50&height=50&name=Redipor%20TwistLock%20Contact%20Plates%20with%20GS1%20DataMatrix%20Codes.png) **Specialist products for boosting microbial EM protocol reliability spotlighted by AnalytiChem UK at Pharmig 2025** 10 November 2025 ](https://www.cherwell-labs.co.uk/cherwell-labs-post/analytichem-uk-highlight-specialist-em-products-pharmig-2025-annual-conference) [![New AnalytiChem UK appointment strengthens customer focus and growth strategy](https://www.cherwell-labs.co.uk/hs-fs/hubfs/Tom%20Pickford%20AnalytiChem%20UK%20Business%20Development%20Manager%20Midlands.jpg?width=50&height=50&name=Tom%20Pickford%20AnalytiChem%20UK%20Business%20Development%20Manager%20Midlands.jpg) **New AnalytiChem UK appointment strengthens customer focus and growth strategy** 20 October 2025 ](https://www.cherwell-labs.co.uk/cherwell-labs-post/new-analytichem-uk-appointment-strengthens-customer-focus-and-growth-strategy) #### Subscribe Receive the latest articles as they are published. #### Contact us Registered Office 7 & 8 Launton Business Centre, Murdock Road, Bicester, OX26 4XB **Phone** Tel: +44 (0) 1869 355 500 **Email** [sales.uk@analytichem.com](mailto:sales.uk@analytichem.com)    ![analytichem_Logo+claim_RGB](https://www.cherwell-labs.co.uk/hs-fs/hubfs/analytichem_Logo+claim_RGB.png?width=2000&height=431&name=analytichem_Logo+claim_RGB.png "analytichem_Logo+claim_RGB") ![BSI-ISO-9001-Certified-50px](https://www.cherwell-labs.co.uk/hs-fs/hubfs/BSI-ISO-9001-Certified-50px.png?width=130&height=77&name=BSI-ISO-9001-Certified-50px.png "BSI-ISO-9001-Certified-50px") AnalytiChem UK ©2025 (Formerly Cherwell) Reg. in England No: 01159518 VAT Reg. 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