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\u03b4\u03b9\u03b5\u03be\u03b1\u03b3\u03c9\u03b3\u03ae \u03b1\u03c0\u03bf\u03bb\u03cd\u03bc\u03b1\u03bd\u03c3\u03b7\u03c2. \u039f\u03b9 \u03c0\u03c1\u03bf\u03c3\u03c9\u03c1\u03b9\u03bd\u03ad\u03c2 \u03c3\u03c5\u03c3\u03ba\u03b5\u03c5\u03ad\u03c2 \u03c0\u03b1\u03c1\u03bf\u03c7\u03ae\u03c2 \u03bd\u03b5\u03c1\u03bf\u03cd \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03ba\u03b1\u03b8\u03b1\u03c1\u03af\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b1\u03c0\u03bf\u03bb\u03c5\u03bc\u03b1\u03af\u03bd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03bd\u03b1 \u03b1\u03c0\u03bf\u03c6\u03b5\u03c5\u03c7\u03b8\u03b5\u03af \u03b7 \u03b4\u03b5\u03c5\u03c4\u03b5\u03c1\u03bf\u03b3\u03b5\u03bd\u03ae\u03c2 \u03bc\u03cc\u03bb\u03c5\u03bd\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03bd\u03b5\u03c1\u03bf\u03cd.<\/p>\n<h3><strong><b>2.2 \u0395\u03c0\u03b5\u03af\u03b3\u03bf\u03c5\u03c3\u03b1 \u03a0\u03b1\u03c1\u03b1\u03ba\u03bf\u03bb\u03bf\u03cd\u03b8\u03b7\u03c3\u03b7<\/b><\/strong><\/h3>\n<p>\u039f\u03b9 \u03c3\u03c5\u03bc\u03b2\u03b1\u03c4\u03b9\u03ba\u03bf\u03af \u03b4\u03b5\u03af\u03ba\u03c4\u03b5\u03c2 \u03c0\u03bf\u03b9\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03c4\u03bf\u03c5 \u03bd\u03b5\u03c1\u03bf\u03cd \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c0\u03b1\u03c1\u03b1\u03ba\u03bf\u03bb\u03bf\u03c5\u03b8\u03bf\u03cd\u03bd\u03c4\u03b1\u03b9 \u03c4\u03bf\u03c5\u03bb\u03ac\u03c7\u03b9\u03c3\u03c4\u03bf\u03bd \u03bc\u03af\u03b1 \u03c6\u03bf\u03c1\u03ac \u03c4\u03b7\u03bd \u03b7\u03bc\u03ad\u03c1\u03b1, \u03b5\u03bd\u03ce \u03c4\u03b1 \u03c7\u03b1\u03c1\u03b1\u03ba\u03c4\u03b7\u03c1\u03b9\u03c3\u03c4\u03b9\u03ba\u03ac \u03c1\u03c5\u03c0\u03b1\u03bd\u03c4\u03b9\u03ba\u03ac \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b1\u03bd\u03b9\u03c7\u03bd\u03b5\u03cd\u03bf\u03bd\u03c4\u03b1\u03b9 \u03bc\u03af\u03b1 \u03c6\u03bf\u03c1\u03ac \u03ba\u03ac\u03b8\u03b5 2 \u03ad\u03c9\u03c2 4 \u03ce\u03c1\u03b5\u03c2. \u0397 \u03c0\u03b1\u03c1\u03b1\u03ba\u03bf\u03bb\u03bf\u03cd\u03b8\u03b7\u03c3\u03b7 \u03ba\u03b1\u03bb\u03cd\u03c0\u03c4\u03b5\u03b9 \u03c4\u03bf \u03bd\u03b5\u03c1\u03cc \u03c0\u03b7\u03b3\u03ae\u03c2, \u03c4\u03bf \u03c4\u03b5\u03bb\u03b9\u03ba\u03cc \u03bd\u03b5\u03c1\u03cc \u03ba\u03b1\u03b9 \u03c4\u03bf \u03bd\u03b5\u03c1\u03cc \u03c4\u03b7\u03c2 \u03b2\u03c1\u03cd\u03c3\u03b7\u03c2 \u03c3\u03c4\u03bf \u03c4\u03ad\u03bb\u03bf\u03c2 \u03c4\u03bf\u03c5 \u03c3\u03c9\u03bb\u03ae\u03bd\u03b1, \u03bc\u03b5 \u03cc\u03bb\u03b1 \u03c4\u03b1 \u03b4\u03b5\u03b4\u03bf\u03bc\u03ad\u03bd\u03b1 \u03bd\u03b1 \u03c5\u03c0\u03bf\u03b2\u03ac\u03bb\u03bb\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c3\u03b5 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc \u03c7\u03c1\u03cc\u03bd\u03bf.<\/p>\n<h3><strong><b>2.3 \u0391\u03c0\u03bf\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03a0\u03b1\u03c1\u03bf\u03c7\u03ae\u03c2 \u039d\u03b5\u03c1\u03bf\u03cd<\/b><\/strong><\/h3>\n<p>\u0397 \u03ba\u03b1\u03bd\u03bf\u03bd\u03b9\u03ba\u03ae \u03c0\u03b1\u03c1\u03bf\u03c7\u03ae \u03bd\u03b5\u03c1\u03bf\u03cd \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03b5\u03c0\u03b1\u03bd\u03b1\u03bb\u03b7\u03c6\u03b8\u03b5\u03af \u03bc\u03cc\u03bd\u03bf \u03bc\u03b5\u03c4\u03ac \u03b1\u03c0\u03cc \u03c0\u03bb\u03ae\u03c1\u03b7 \u03ad\u03bb\u03b5\u03b3\u03c7\u03bf \u03c4\u03c9\u03bd \u03c0\u03b7\u03b3\u03ce\u03bd \u03bc\u03cc\u03bb\u03c5\u03bd\u03c3\u03b7\u03c2 \u03ba\u03b1\u03b9 24 \u03c3\u03c5\u03bd\u03b5\u03c7\u03cc\u03bc\u03b5\u03bd\u03b5\u03c2 \u03ce\u03c1\u03b5\u03c2 \u03c0\u03bf\u03b9\u03bf\u03c4\u03b9\u03ba\u03ae\u03c2 \u03c3\u03c5\u03bc\u03bc\u03cc\u03c1\u03c6\u03c9\u03c3\u03b7\u03c2 \u03bc\u03b5 \u03c4\u03bf GB 5749-2022. \u0397 \u03b1\u03c0\u03bf\u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b1\u03c3\u03b7 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b1\u03be\u03b9\u03bf\u03bb\u03bf\u03b3\u03b5\u03af\u03c4\u03b1\u03b9 \u03ba\u03b1\u03b9 \u03bd\u03b1 \u03b1\u03bd\u03b1\u03ba\u03bf\u03b9\u03bd\u03ce\u03bd\u03b5\u03c4\u03b1\u03b9 \u03b4\u03b7\u03bc\u03cc\u03c3\u03b9\u03b1 \u03b1\u03c0\u03cc \u03c4\u03b9\u03c2 \u03c5\u03b3\u03b5\u03b9\u03bf\u03bd\u03bf\u03bc\u03b9\u03ba\u03ad\u03c2 \u03b1\u03c1\u03c7\u03ad\u03c2.<\/p>\n<h2><strong><b>3. \u039f\u03b4\u03b7\u03b3\u03af\u03b5\u03c2 \u03a0\u03c1\u03bf\u03c3\u03c4\u03b1\u03c3\u03af\u03b1\u03c2 \u03c4\u03bf\u03c5 \u039a\u03bf\u03b9\u03bd\u03bf\u03cd<\/b><\/strong><\/h2>\n<p>\u03a0\u03c1\u03ce\u03c4\u03bf\u03bd, \u03c3\u03c5\u03bd\u03b9\u03c3\u03c4\u03ac\u03c4\u03b1\u03b9 \u03b9\u03b4\u03b9\u03b1\u03af\u03c4\u03b5\u03c1\u03b1 \u03b7 \u03c7\u03c1\u03ae\u03c3\u03b7 \u03b5\u03bc\u03c6\u03b9\u03b1\u03bb\u03c9\u03bc\u03ad\u03bd\u03bf\u03c5 \u03bd\u03b5\u03c1\u03bf\u03cd \u03b3\u03b9\u03b1 \u03c0\u03cc\u03c3\u03b9\u03bc\u03bf. \u03a4\u03bf \u03bd\u03b5\u03c1\u03cc \u03c4\u03b7\u03c2 \u03b2\u03c1\u03cd\u03c3\u03b7\u03c2 \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03b2\u03c1\u03ac\u03b6\u03b5\u03b9 \u03b3\u03b9\u03b1 1 \u03bb\u03b5\u03c0\u03c4\u03cc \u03c0\u03c1\u03b9\u03bd \u03c4\u03b7\u03bd \u03ba\u03b1\u03c4\u03b1\u03bd\u03ac\u03bb\u03c9\u03c3\u03b7, \u03ba\u03b1\u03b9 \u03b3\u03b9\u03b1 3 \u03bb\u03b5\u03c0\u03c4\u03ac \u03c3\u03b5 \u03c0\u03b5\u03c1\u03b9\u03bf\u03c7\u03ad\u03c2 \u03c5\u03c8\u03b7\u03bb\u03bf\u03cd \u03c5\u03c8\u03bf\u03bc\u03ad\u03c4\u03c1\u03bf\u03c5. \u03a4\u03bf \u03b2\u03c1\u03b1\u03c3\u03af\u03bc\u03b1\u03c4\u03bf \u03c0\u03b1\u03c1\u03b1\u03bc\u03ad\u03bd\u03b5\u03b9 \u03bf \u03c0\u03b9\u03bf \u03b1\u03c0\u03bf\u03c4\u03b5\u03bb\u03b5\u03c3\u03bc\u03b1\u03c4\u03b9\u03ba\u03cc\u03c2 \u03c4\u03c1\u03cc\u03c0\u03bf\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u03b5\u03be\u03ac\u03bb\u03b5\u03b9\u03c8\u03b7 \u03c0\u03b1\u03b8\u03bf\u03b3\u03cc\u03bd\u03c9\u03bd \u03b2\u03b1\u03ba\u03c4\u03b7\u03c1\u03af\u03c9\u03bd.<\/p>\n<p>\u0394\u03b5\u03cd\u03c4\u03b5\u03c1\u03bf\u03bd, \u03c4\u03bf \u03b8\u03bf\u03bb\u03cc \u03b1\u03c1\u03c7\u03b9\u03ba\u03cc \u03bd\u03b5\u03c1\u03cc \u03c0\u03c1\u03ad\u03c0\u03b5\u03b9 \u03bd\u03b1 \u03c6\u03b9\u03bb\u03c4\u03c1\u03ac\u03c1\u03b5\u03c4\u03b1\u03b9 \u03c0\u03c1\u03b9\u03bd \u03c4\u03b7\u03bd \u03b1\u03c0\u03bf\u03bb\u03cd\u03bc\u03b1\u03bd\u03c3\u03b7 \u03ba\u03b1\u03b9 \u03c4\u03bf \u03b2\u03c1\u03ac\u03c3\u03b9\u03bc\u03bf. \u039f\u03b9 \u03b4\u03b5\u03be\u03b1\u03bc\u03b5\u03bd\u03ad\u03c2 \u03b1\u03c0\u03bf\u03b8\u03ae\u03ba\u03b5\u03c5\u03c3\u03b7\u03c2 \u03c4\u03bf\u03c5 \u03bd\u03b5\u03c1\u03bf\u03cd \u03c7\u03c1\u03b5\u03b9\u03ac\u03b6\u03bf\u03bd\u03c4\u03b1\u03b9 \u03c4\u03b1\u03ba\u03c4\u03b9\u03ba\u03cc \u03ba\u03b1\u03b8\u03b1\u03c1\u03b9\u03c3\u03bc\u03cc \u03ba\u03b1\u03b9 \u03b1\u03c0\u03bf\u03bb\u03cd\u03bc\u03b1\u03bd\u03c3\u03b7.<\/p>\n<p>\u03a4\u03c1\u03af\u03c4\u03bf\u03bd, \u03b1\u03c0\u03bf\u03c6\u03b5\u03cd\u03b3\u03b5\u03c4\u03b1\u03b9 \u03b7 \u03ba\u03b1\u03c4\u03b1\u03bd\u03ac\u03bb\u03c9\u03c3\u03b7 \u03ae \u03b7 \u03b5\u03c0\u03b1\u03c6\u03ae \u03bc\u03b5 \u03bd\u03b5\u03c1\u03cc \u03b1\u03c0\u03cc \u03b1\u03bd\u03b5\u03be\u03ac\u03c1\u03c4\u03b7\u03c4\u03b5\u03c2 \u03c0\u03b7\u03b3\u03ad\u03c2.<\/p>\n<figure id=\"attachment_1032\" aria-describedby=\"caption-attachment-1032\" style=\"width: 505px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-1032\" title=\"\u0388\u03ba\u03c4\u03b1\u03ba\u03c4\u03b5\u03c2 \u039f\u03b4\u03b7\u03b3\u03af\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u0391\u03c3\u03c6\u03ac\u03bb\u03b5\u03b9\u03b1 \u03c4\u03bf\u03c5 \u03a0\u03cc\u03c3\u03b9\u03bc\u03bf\u03c5 \u039d\u03b5\u03c1\u03bf\u03cd\" src=\"https:\/\/www.nolletfilter.com\/wp-content\/uploads\/2026\/05\/\u6c34\u6807\u51c6-300x224.png\" alt=\"Emergency Guidelines for Drinking Water Safety\" width=\"505\" height=\"377\" srcset=\"https:\/\/www.nolletfilter.com\/wp-content\/uploads\/2026\/05\/\u6c34\u6807\u51c6-300x224.png 300w, https:\/\/www.nolletfilter.com\/wp-content\/uploads\/2026\/05\/\u6c34\u6807\u51c6-768x574.png 768w, https:\/\/www.nolletfilter.com\/wp-content\/uploads\/2026\/05\/\u6c34\u6807\u51c6-16x12.png 16w, https:\/\/www.nolletfilter.com\/wp-content\/uploads\/2026\/05\/\u6c34\u6807\u51c6.png 917w\" sizes=\"(max-width: 505px) 100vw, 505px\" \/><figcaption id=\"caption-attachment-1032\" class=\"wp-caption-text\">\u0388\u03ba\u03c4\u03b1\u03ba\u03c4\u03b5\u03c2 \u039f\u03b4\u03b7\u03b3\u03af\u03b5\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b7\u03bd \u0391\u03c3\u03c6\u03ac\u03bb\u03b5\u03b9\u03b1 \u03c4\u03bf\u03c5 \u03a0\u03cc\u03c3\u03b9\u03bc\u03bf\u03c5 \u039d\u03b5\u03c1\u03bf\u03cd<\/figcaption><\/figure>","protected":false},"excerpt":{"rendered":"<p>\u0397 \u039a\u03af\u03bd\u03b1 \u03b5\u03ba\u03b4\u03af\u03b4\u03b5\u03b9 \u03c4\u03bf \u03c0\u03c1\u03ce\u03c4\u03bf 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