DK 021:2015 24310000-0 Basic inorganic chemical substances (ammonia 25% chda ; ammonium chloride, chda ; barium chloride (2-hydr.) chch ; potassium iron cyanide (red crystal salt) chda ; potassium iodide pharm ; potassium sodium tartrate chda ; potassium sulfate chda ; formic acid (85%) h ; kit for the preparation of buffer solutions (6 ampoules) Acidic potassium phthalic acid (Type 3, pH 4.01) standard-tit; kit for the preparation of buffer solutions (6 ampoules ) Phosphates (Type 4, pH 6.86) titer standard; set for preparation of buffer solutions (6 ampoules) Sodium tetraboric acid (Type 5, pH 9.18) titer standard; sodium sulfate (b/v) h ; orthophosphoric acid acid 85% food; sodium sulfuric acid (thiosulfate) standard titer (pack of 10 ampoules) (vials); sulfuric acid standard titer (pack of 10 ampoules); granulated zinc chda; ferric ammonium alum chda; sodium hydroxide standard titer (pack 10 ampoules); silver nitric acid chda; silica gel KSMG; aluminum potassium alum h; potassium nitric acid hch) (EXPIRED)