{"query":{"parameter":"xylene","place":"MX","medium":null,"statistic":null,"kind":null},"searched":{"places":["MX"],"parameter_keys":["cas:1330-20-7","cas:95-47-6","cas:108-38-3","cas:106-42-3","cas:2870-04-4","cas:1758-88-9","cas:6196-95-8","cas:98-19-1","cas:1477-55-0","name:xylene mixture","name:xylene, total m,p,o","name:para-xilene","name:xylenes, total"],"names_matched":[["xylene","cas:1330-20-7"],["1 2 xylene","cas:95-47-6"],["1 3 xylene","cas:108-38-3"],["1 4 xylene","cas:106-42-3"],["2 ethyl m xylene","cas:2870-04-4"],["2 ethyl p xylene","cas:1758-88-9"],["4 1 phenylethyl o xylene","cas:6196-95-8"],["5 tert butyl m xylene","cas:98-19-1"],["m xylene","cas:108-38-3"],["m xylene alpha alpha diamine","cas:1477-55-0"],["o xylene","cas:95-47-6"],["p xylene","cas:106-42-3"],["tert butyl m xylene","cas:98-19-1"],["xylene m","cas:108-38-3"],["xylene meta","cas:108-38-3"],["xylene mixture","name:xylene mixture"],["xylene o","cas:95-47-6"],["xylene ortho","cas:95-47-6"],["xylene p","cas:106-42-3"],["xylene para","cas:106-42-3"],["xylene total m p o","name:xylene, total m,p,o"],["para xilene","name:para-xilene","xilene"],["xylenes total","name:xylenes, total","xylenes"]],"match":"exact+contains","order":"The place's own instruments first, then each place above it, each in its register's order"},"total":1,"offset":0,"returned":1,"next_offset":null,"rows":[{"id":"5c80a499049e7a27","parameter":"Xilenos (suma de isómeros orto, meta y para)","value":"500","value_num":500,"unit":"µg/L","direction":"max","kind":"limit","medium":"drinking_water","level":"national","parameter_key":"cas:1330-20-7","place":["MX"],"conditions":["grupo de compuestos orgánicos sintéticos: Compuestos orgánicos volátiles no halogenados"],"cite":{"instrument":"mx_nom127_ssa1_2021","title":"NOM-127-SSA1-2021 — Agua para uso y consumo humano. Límites permisibles de la calidad del agua: Tablas 1 to 14 and Apéndice A Normativo, Tablas A.1 to A.3","issuer":"Secretaría de Salud (Comisión Federal para la Protección contra Riesgos Sanitarios), Estados Unidos Mexicanos","edition":"DOF 02/05/2022 (in force 360 natural days from the day after publication — 10. Vigencia; turbidity 3.0 UNT from the second year after entry into force — Tabla 1 note a; fluoride 1.0 mg/L, arsenic 0.01 mg/L and cadmium 0.003 mg/L one, three or six years after entry into force by locality size — Tablas 3 and 5; repeals the 2000 modification of NOM-127-SSA1-1994 — Transitorio Único)","source_url":"https://dof.gob.mx/nota_detalle.php?codigo=5650705&fecha=02/05/2022","source_sha256":"ccafe3317244274e237d8bfc92051f8396f8d3342782d37d7b4e954099889b46","fetched_at":"2026-10-15","source_status":{"checked":"2026-10-16","status":"not verified"},"section":"NOM-127-SSA1-2021, Tabla 14 (compuestos orgánicos sintéticos)","page":null,"quote":"Xilenos (suma de isómeros orto, meta y para) 500 µg/L"}}],"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":"MX"},"needs":{"rows":"Your user's measured results, as their table prints them: [{parameter: \"xylene\", value, unit}, ...], any other parameters too."},"post":"/api/v1/check","url":"https://passage-data.com/api/v1/check","page":"https://passage-data.com/limits/MX/xylene#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":"MX"},"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","url":"https://passage-data.com/api/v1/certificate","page":"https://passage-data.com/limits/MX/xylene#check"}]}