Timberline Blog
Continuous Estuary Ammonium Monitoring & Methods
Explore continuous estuary ammonium monitoring for surface water. Learn about field ammonium analyzers for real-time nutrient measurement and phytoplankton inhibition studies.
Un-ionized Ammonia Calculation: Formula, pH, & Temperature
Master the un-ionized ammonia calculation. Learn how pH, temperature, and total ammonia nitrogen influence free ammonia levels for accurate environmental analysis.
Composite vs. Grab Sampling for Wastewater Ammonia
Compare composite and grab sampling for wastewater ammonia analysis. Learn about 24-hour collection, refrigerated preservation, and 40 CFR 136 compliance for accurate data.
Dechlorinate Ammonia Samples for Accurate Analysis
Residual chlorine interferes with ammonia analysis methods. Discover best practices for dechlorinating ammonia samples, including using sodium thiosulfate, to ensure accurate results.
40 CFR 136 Ammonia Methods: EPA Approved Procedures
Explore EPA-approved ammonia methods under 40 CFR 136 Table IB, including updates from the 2017 MUR. Understand compliance and analytical options for wastewater labs.
Standard Methods 4500-NH3 Ammonia: Guide & Comparison
Explore Standard Methods 4500-NH3 for ammonia analysis. Learn its principles, common variants (4500-NH3 D, G), and practical considerations for lab operations.