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form:","table: [Metric units, kg/kkg of product; English units, lb/1,000 lb of product]"],"cite":{"instrument":"us_40cfr418","title":"40 CFR Part 418 — PART 418—FERTILIZER MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=418","source_sha256":"881822302cd9912ec4678ba7ccaa00276ff06f33a48ae154f399db6986c1ffda","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 418.52 (BPT)","page":null,"quote":"Ammonia (as N) 0.007 0.0007"}},{"id":"62119d4cfc97bf1d","parameter":"Ammonia (as N)","value":"0.0007","value_num":0.0007,"unit":"kg/kkg of product","statistic":"monthly_avg","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7664-41-7","place":["US"],"conditions":["route is direct","cites is 40 CFR 418","the discharge is of 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N)","value":"0.08","value_num":0.08,"unit":"kg/kkg of product","statistic":"daily_max","direction":"max","kind":"limit","medium":"water_discharge","level":"national","route":"direct","parameter_key":"cas:7664-41-7","place":["US"],"conditions":["route is direct","cites is 40 CFR 418","the discharge is of the Subpart E—Nitric Acid Subcategory","existing sources (BPT)","(b) The following limitations establish the quantity or quality of pollutants which may be discharged in process waste water from nitric acid production in which all the raw material ammonia is in the shipped liquid form:","table: [Metric units, kg/kkg of product; English units, lb/1,000 lb of product]"],"cite":{"instrument":"us_40cfr418","title":"40 CFR Part 418 — PART 418—FERTILIZER MANUFACTURING POINT SOURCE CATEGORY","issuer":"U.S. Environmental Protection Agency","edition":"eCFR as of 2026-08-01","source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-01/title-40.xml?part=418","source_sha256":"881822302cd9912ec4678ba7ccaa00276ff06f33a48ae154f399db6986c1ffda","fetched_at":"2026-09-24","source_status":{"checked":"2026-10-15","status":"unchanged"},"section":"40 CFR 418.52 (BPT)","page":null,"quote":"Ammonia (as N) 0.08 0.008"}}],"next":[{"tool":"check_values","says":"Has your user measured this? check_values sets each of their results beside every row held here, with a verdict and the row's cite.","arguments":{"place":"US-PA"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"ammonia\", value, unit}, ...], any other parameters too."},"post":"/api/v1/check"},{"tool":"read_certificate","says":"Has your user a laboratory certificate? read_certificate reads every row it prints, each with its page, and checks them against these limits.","arguments":{"place":"US-PA"},"needs":{"content_base64":"The laboratory's certificate (PDF) or its XLSX, XLS or CSV export, as base64; or file_url, a public https address of it."},"post":"/api/v1/certificate"}]}