United Kingdom
UK / English
Choose your region
Choose your language
Register
Mast_Group.svg
ProductsMarketsAboutResourcesNews & Events
Contact us
ProductsMarketsAboutResourcesNews & Events
logo-mast.svg
+44 (0) 151 933 7277
Email us
Sign up to Newsletter
Products
  • Gastrointestinal Diseases
  • Immunology
  • Microbiology
  • Molecular
  • Pharmaceutical Services
  • Urinalysis
Markets
  • Clinical Diagnostics
  • FIT testing
  • Infectious Disease
  • Pharmaceutical & Industrial
  • Point of Care
  • Veterinary
About
  • Careers
  • Our Culture
  • Our Governance
  • Our History
  • Our Locations
  • Our Partners
  • Our Quality
Resources
  • Faqs
  • Certificates of Analysis
  • Quality Certification
News & Events
  • News
  • Events
  • Blog
United Kingdom
UK / English
Manage Cookies|
Terms & conditions|
Privacy and Data Protection|
Policy Ordering Information|
Terms and Conditions For Supply of Goods and/or Services|
Standard Conditions of Purchase
|© Mast Group Ltd. 2026
Follow Us
LinkedIn.svgUK
© Mast Group Ltd. 2026
Home
MASTRING-S®M13/NCE
M13/NCE

MASTRING-S® Systemic Gram Negative Ring

Enquire now
MASTRING-S® is a specialised antibiotic susceptibility testing (AST) ring, developed by Mast Group, designed for rapid, simultaneous, and standardised susceptibility testing of 6 or 8 antibiotics in a single device. Originally designed in the 1960s to facilitate the Stokes technique, it remains a widely used, convenient alternative to traditional individual antibiotic disc diffusion. Antibiotics included within this MASTRING-S® includes: Chloramphenicol 25µg, Erythromycin 5µg, Fusidic acid 10µg, Oxacillin 5µg, Novobiocin 5µg, Penicillin G 1 unit, Streptomycin 10µg, Tetracycline 25µg,
Pack Size
100 Rings
Status
Stock
Commodity Code
38229000
Pack Size
Pack Size
100 Rings
EUCAST
✗
CE
CE
✗
CLSI
✗
Storage Temperature
Storage Temperature
2 to 8˚C

Resources