Compare composite and grab sampling for wastewater ammonia analysis. Learn about 24-hour collection, refrigerated preservation, and 40 CFR 136 compliance for accurate data.

Residual chlorine interferes with ammonia analysis methods. Discover best practices for dechlorinating ammonia samples, including using sodium thiosulfate, to ensure accurate results.

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.