Timberline Blog
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.
EPA Method 350.1 Ammonia: Principles & Requirements
Understand EPA Method 350.1 for ammonia analysis. Learn principles, sample preparation, and compliance requirements for automated phenate colorimetry in water/wastewater labs.
EPA 40 CFR Ammonia Sample Holding Time & Preservation
Understand ammonia sample preservation techniques and holding time requirements. Learn best practices for pH adjustment and cooling to meet EPA 40 CFR compliance for accurate lab results.
Turbid Ammonia Samples: Best Methods for Accurate Analysis
Struggling with turbid ammonia samples? Learn the best methods for accurate ammonia analysis in colored wastewater, including the advantages of gas diffusion for difficult samples. Get precise results.