Fall Cannabis Study Is Now OPEN for Ordering!
S & A Scientific Laboratories
Developed & Manufactured by Scientists, for Scientists.
S & A Scientific Laboratories
Developed & Manufactured by Scientists, for Scientists.
PTs we are currently offering in 2026
Nuts
Cannabis
Nuts
Specialized PT for mycotoxin testing in nuts is critical for ensuring food safety.
Food
Cannabis
Nuts
Proficiency testing for meat, dairy, fruit & vegetables purees to ensure accurate detection of pathogens, contaminants, and quality markers to meet USDA and FDA standards.
Cannabis
Cannabis
Cannabis
Cannabis testing for potency, contaminants, and microbial safety (e.g., yeast and mold) using USP-aligned methods.
Our 2026 Catalog is now Available!
S & A offers a comprehensive catalog of proficiency testing (PT) programs tailored for testing laboratories. Discover our PT solutions for cannabis, food, nuts, and mold testing, utilizing USP-based methods.
READY TO ORDER A PT?
Standard PTs
Order a PT through our customer portal. Click "Request New Account" below the Sign-In button to create your S&A Scientific account and access all PT features.
Express PTs
Need PT on a tight deadline? Order Express PT through our customer portal. If you don’t have an account yet, click “Request New Account” below the sign in button to create your profile and access all Express PT features.
Custom PTs
Get proficiency testing that fits your exact needs. When standard PT programs don’t fit your lab’s workflow, our Custom PTs provide fully tailored analytes, matrices, and schedules.
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Exclusive at S&A Scientific
Express PT for Food Testing
Get proficiency testing when you need it. No waiting for quarterly studies