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© Mast Group Ltd. 2026 Mast Group Limited is a limited company registered in England and Wales with registered number 00632512. Our registered office is at Mast House, Derby Road, Liverpool, L20 1EA.
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ASTMASTRING-S®

MASTRING-S®

Explore MASTRING-S®

MASTDISCS® AntibioticMASTDISCS® Antifungal ADATAB®MASTRING-S®

MASTRING-S® enables laboratories to perform efficient multi antibiotic susceptibility testing in a single, easy to use format, reducing preparation time, minimising handling and improving overall workflow. In addition to standard configurations, MASTRING-S® can be tailored to meet specific testing requirements, offering a practical alternative to individual discs.

MASTRING-S® Systemic Gram Negative Ring
AST
MASTRING-S® Systemic Gram Negative Ring
M43/NCE
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: Penicillin G 1 unit, Clindamycin 2µg, Gentamicin 10µg, Fusidic acid 10µg, Erythromycin 5µg, Trimethoprim 1.25µg, Sulphamethoxazole 25µg, Tetracycline 10µg
More Info
MASTRING-S® Systemic Gram Negative Rings
AST
MASTRING-S® Systemic Gram Negative Rings
M14/NCE
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: Ampicillin 10μg, Cephalothin 5μg, Colistin Sulphate 25μg, Gentamicin 10μg, Streptomycin 10μg, Sulphatriad 200μg, Tetracycline 25μg, Cotrimoxazole 25μg
More Info
MASTRING-S® Urine
AST
MASTRING-S® Urine
M26/NCE
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: Ampicillin 25μg, Chloramphenicol 50μg, Colistin Sulphate 100μg, Kanamycin 30μg, Nalidixic Acid 30μg, Nitrofurantoin 50μg, Streptomycin 25μg, Tetracycline 25μg
More Info
MASTRING-S® Systemic Gram Negative Ring
AST
MASTRING-S® Systemic Gram Negative Ring
M13/NCE
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,
More Info

Explore our Microbiology Solutions

AST

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Culture Media & Supplements

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AMR

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Instruments

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Sample Storage

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Identification & Detection

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