\n<br>
\nM\u1ed9t trong nh\u1eefng l\u1ee3i \u00edch ch\u00ednh c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y \u0111o TDS l\u00e0 t\u00ednh \u0111\u01a1n gi\u1ea3n v\u00e0 d\u1ec5 s\u1eed d\u1ee5ng. Nh\u1eefng m\u00e1y \u0111o n\u00e0y c\u00f3 t\u00ednh di \u0111\u1ed9ng, gi\u00e1 c\u1ea3 ph\u1ea3i ch\u0103ng v\u00e0 d\u1ec5 v\u1eadn h\u00e0nh, gi\u00fap nhi\u1ec1u ng\u01b0\u1eddi d\u00f9ng c\u00f3 th\u1ec3 ti\u1ebfp c\u1eadn ch\u00fang. Cho d\u00f9 b\u1ea1n l\u00e0 ch\u1ee7 nh\u00e0, chuy\u00ean gia x\u1eed l\u00fd n\u01b0\u1edbc hay nh\u00e0 nghi\u00ean c\u1ee9u, \u0111\u1ed3ng h\u1ed3 TDS c\u00f3 th\u1ec3 cung c\u1ea5p nh\u1eefng hi\u1ec3u bi\u1ebft c\u00f3 gi\u00e1 tr\u1ecb v\u1ec1 ch\u1ea5t l\u01b0\u1ee3ng ngu\u1ed3n n\u01b0\u1edbc c\u1ee7a b\u1ea1n. B\u1eb1ng c\u00e1ch th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra m\u1ee9c TDS trong n\u01b0\u1edbc, b\u1ea1n c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o r\u1eb1ng n\u01b0\u1edbc \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n c\u1ea7n thi\u1ebft \u0111\u1ec3 ti\u00eau d\u00f9ng an to\u00e0n.<br>
\nhttps:\/\/www.youtube.com\/watch?v=1Ym2p8WXYPc<\/a><\/p>\n
Khi s\u1eed d\u1ee5ng m\u00e1y \u0111o TDS, \u0111i\u1ec1u quan tr\u1ecdng l\u00e0 ph\u1ea3i hi\u1ec3u c\u00e1ch di\u1ec5n gi\u1ea3i k\u1ebft qu\u1ea3 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c. M\u1ee9c TDS th\u01b0\u1eddng \u0111\u01b0\u1ee3c \u0111o b\u1eb1ng ph\u1ea7n tri\u1ec7u (ppm) ho\u1eb7c miligam tr\u00ean l\u00edt (mg\/L), v\u1edbi m\u1ee9c cao h\u01a1n cho th\u1ea5y n\u1ed3ng \u0111\u1ed9 ch\u1ea5t r\u1eafn h\u00f2a tan trong n\u01b0\u1edbc cao h\u01a1n. Trong khi m\u1ed9t s\u1ed1 ch\u1ea5t r\u1eafn h\u00f2a tan l\u00e0 v\u00f4 h\u1ea1i th\u00ec m\u1ed9t s\u1ed1 ch\u1ea5t kh\u00e1c c\u00f3 th\u1ec3 g\u00e2y h\u1ea1i n\u1ebfu ti\u00eau th\u1ee5 v\u1edbi s\u1ed1 l\u01b0\u1ee3ng l\u1edbn. \u0110i\u1ec1u c\u1ea7n thi\u1ebft l\u00e0 ph\u1ea3i so s\u00e1nh m\u1ee9c TDS trong n\u01b0\u1edbc c\u1ee7a b\u1ea1n v\u1edbi c\u00e1c h\u01b0\u1edbng d\u1eabn \u0111\u01b0\u1ee3c khuy\u1ebfn ngh\u1ecb do c\u00e1c c\u01a1 quan qu\u1ea3n l\u00fd nh\u01b0 C\u01a1 quan B\u1ea3o v\u1ec7 M\u00f4i tr\u01b0\u1eddng (EPA) \u0111\u1eb7t ra \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh xem c\u00f3 c\u1ea7n th\u1ef1c hi\u1ec7n b\u1ea5t k\u1ef3 h\u00e0nh \u0111\u1ed9ng n\u00e0o kh\u00f4ng.<\/p>\n \n T\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y \u0111o TDS \u0111\u1ec3 ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc Ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc l\u00e0 m\u1ed9t kh\u00eda c\u1ea1nh quan tr\u1ecdng trong cu\u1ed9c s\u1ed1ng h\u00e0ng ng\u00e0y c\u1ee7a ch\u00fang ta, v\u00ec n\u00f3 \u1ea3nh h\u01b0\u1edfng tr\u1ef1c ti\u1ebfp \u0111\u1ebfn s\u1ee9c kh\u1ecfe v\u00e0 tinh th\u1ea7n c\u1ee7a ch\u00fang ta. M\u1ed9t trong nh\u1eefng c\u00f4ng c\u1ee5 ch\u00ednh \u0111\u01b0\u1ee3c…<\/p>\n","protected":false},"author":1,"featured_media":17949,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false},"categories":[202],"tags":[],"translation":{"provider":"WPGlobus","version":"2.12.0","language":"vi","enabled_languages":["en","es","de","fr","ru","pt","ar","ja","ko","it","id","hi","th","vi","tr"],"languages":{"en":{"title":true,"content":true,"excerpt":false},"es":{"title":true,"content":true,"excerpt":false},"de":{"title":true,"content":true,"excerpt":false},"fr":{"title":true,"content":true,"excerpt":false},"ru":{"title":false,"content":false,"excerpt":false},"pt":{"title":true,"content":true,"excerpt":false},"ar":{"title":false,"content":false,"excerpt":false},"ja":{"title":true,"content":true,"excerpt":false},"ko":{"title":false,"content":false,"excerpt":false},"it":{"title":false,"content":false,"excerpt":false},"id":{"title":false,"content":false,"excerpt":false},"hi":{"title":false,"content":false,"excerpt":false},"th":{"title":true,"content":true,"excerpt":false},"vi":{"title":true,"content":true,"excerpt":false},"tr":{"title":false,"content":false,"excerpt":false}}},"_links":{"self":[{"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/posts\/17925"}],"collection":[{"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/comments?post=17925"}],"version-history":[{"count":0,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/posts\/17925\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/media\/17949"}],"wp:attachment":[{"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/media?parent=17925"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/categories?post=17925"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/chimaytech.net\/vi\/wp-json\/wp\/v2\/tags?post=17925"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"alt-485\"](\"https:\/\/chimaytech.net\/wp-content\/uploads\/2024\/05\/CLA-7000-2.png\")
\nNgo\u00e0i vi\u1ec7c gi\u00e1m s\u00e1t ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc u\u1ed1ng, m\u00e1y \u0111o TDS c\u00f2n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong nhi\u1ec1u ng\u00e0nh c\u00f4ng nghi\u1ec7p kh\u00e1c nhau nh\u01b0 n\u00f4ng nghi\u1ec7p, nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n v\u00e0 s\u1ea3n xu\u1ea5t. Trong n\u00f4ng nghi\u1ec7p, m\u00e1y \u0111o TDS \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 theo d\u00f5i ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc t\u01b0\u1edbi, \u0111\u1ea3m b\u1ea3o c\u00e2y tr\u1ed3ng nh\u1eadn \u0111\u01b0\u1ee3c c\u00e1c ch\u1ea5t dinh d\u01b0\u1ee1ng c\u1ea7n thi\u1ebft m\u00e0 kh\u00f4ng ti\u1ebfp x\u00fac v\u1edbi c\u00e1c ch\u1ea5t g\u00e2y \u00f4 nhi\u1ec5m c\u00f3 h\u1ea1i. Trong nu\u00f4i tr\u1ed3ng th\u1ee7y s\u1ea3n, m\u00e1y \u0111o TDS \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 duy tr\u00ec \u0111i\u1ec1u ki\u1ec7n n\u01b0\u1edbc t\u1ed1i \u01b0u cho c\u00e1 v\u00e0 c\u00e1c sinh v\u1eadt d\u01b0\u1edbi n\u01b0\u1edbc kh\u00e1c, ng\u0103n ng\u1eeba c\u00e1c v\u1ea5n \u0111\u1ec1 s\u1ee9c kh\u1ecfe v\u00e0 th\u00fac \u0111\u1ea9y t\u0103ng tr\u01b0\u1edfng. Trong s\u1ea3n xu\u1ea5t, m\u00e1y \u0111o TDS \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng \u0111\u1ec3 gi\u00e1m s\u00e1t ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc x\u1eed l\u00fd, \u0111\u1ea3m b\u1ea3o s\u1ea3n ph\u1ea9m \u0111\u00e1p \u1ee9ng c\u00e1c ti\u00eau chu\u1ea9n y\u00eau c\u1ea7u v\u1ec1 \u0111\u1ed9 tinh khi\u1ebft v\u00e0 an to\u00e0n.<\/p>\n\n\n
\n M\u00f4 h\u00ecnh<\/td>\n M\u00e1y \u0111o pH\/ORP tr\u1ef1c tuy\u1ebfn pH\/ORP-5500<\/td>\n<\/tr>\n \n Ph\u1ea1m vi<\/td>\n pH:0,00~14,00 ; ORP: (-2000~+2000)mV; Nhi\u1ec7t \u0111\u1ed9.:(0,0~99,9)\u00b0C (Nhi\u1ec7t \u0111\u1ed9 b\u00f9: NTC10K)<\/td>\n<\/tr>\n \n \u0110\u1ed9 ph\u00e2n gi\u1ea3i<\/td>\n pH:0,01 ; ORP: 1mV; Nhi\u1ec7t \u0111\u1ed9.:0,1\u00b0C<\/td>\n<\/tr>\n \n \u0110\u1ed9 ch\u00ednh x\u00e1c<\/td>\n pH:+\/-0,1 ; ORP: +\/- 5mV (\u0111\u01a1n v\u1ecb \u0111i\u1ec7n t\u1eed); Nhi\u1ec7t \u0111\u1ed9.: +\/- 0,5\u00b0C<\/td>\n<\/tr>\n \n Nhi\u1ec7t \u0111\u1ed9. b\u1ed3i th\u01b0\u1eddng<\/td>\n Ph\u1ea1m vi: (0~120)\u00b0C; ph\u1ea7n t\u1eed: Pt1000<\/td>\n<\/tr>\n \n Dung d\u1ecbch \u0111\u1ec7m<\/td>\n gi\u00e1 tr\u1ecb pH 9,18; 6,86; 4,01; 10 gi\u1edd; 7 gi\u1edd; 4 gi\u1edd 00<\/td>\n<\/tr>\n \n Nhi\u1ec7t \u0111\u1ed9 trung b\u00ecnh.<\/td>\n (0~50)\u00b0C (v\u1edbi 25\u00b0C l\u00e0 ti\u00eau chu\u1ea9n) nhi\u1ec7t \u0111\u1ed9 th\u1ee7 c\u00f4ng\/t\u1ef1 \u0111\u1ed9ng. b\u1ed3i th\u01b0\u1eddng cho vi\u1ec7c l\u1ef1a ch\u1ecdn<\/td>\n<\/tr>\n \n \u0110\u1ea7u ra t\u01b0\u01a1ng t\u1ef1<\/td>\n C\u00e1ch ly (4~20)mA, Thi\u1ebft b\u1ecb\/M\u00e1y ph\u00e1t \u0111\u1ec3 l\u1ef1a ch\u1ecdn<\/td>\n<\/tr>\n \n \u0110\u1ea7u Ra \u0110i\u1ec1u Khi\u1ec3n<\/td>\n \u0110\u1ea7u ra r\u01a1le k\u00e9p (B\u1eacT\/T\u1eaeT); AC 240V\/3A<\/td>\n<\/tr>\n \n M\u00f4i tr\u01b0\u1eddng l\u00e0m vi\u1ec7c<\/td>\n Nhi\u1ec7t \u0111\u1ed9.(0~50)\u2103; \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i v\u00e0 lt;95% RH (kh\u00f4ng ng\u01b0ng t\u1ee5)<\/td>\n<\/tr>\n \n M\u00f4i tr\u01b0\u1eddng l\u01b0u tr\u1eef<\/td>\n Nhi\u1ec7t \u0111\u1ed9.(-20~60)\u2103;\u0110\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i \u226485 ph\u1ea7n tr\u0103m RH (kh\u00f4ng ng\u01b0ng t\u1ee5)<\/td>\n<\/tr>\n \n Ngu\u1ed3n \u0111i\u1ec7n<\/td>\n DC 24V; \u0111i\u1ec7n xoay chi\u1ec1u 110V; AC220V<\/td>\n<\/tr>\n \n Ti\u00eau th\u1ee5 \u0111i\u1ec7n n\u0103ng<\/td>\n v\u00e0 lt;3W<\/td>\n<\/tr>\n \n M\u1ee9c \u0111\u1ed9 b\u1ea3o v\u1ec7<\/td>\n IP65 (c\u00f3 n\u1eafp l\u01b0ng)<\/td>\n<\/tr>\n \n K\u00edch th\u01b0\u1edbc<\/td>\n 96mmx96mmx105mm(HxWxD)<\/td>\n<\/tr>\n \n K\u00edch th\u01b0\u1edbc l\u1ed7<\/td>\n 91mmx91mm(CxR)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n \n\n
\n Ph\u01b0\u01a1ng ph\u00e1p \u0111o<\/td>\n Ph\u01b0\u01a1ng ph\u00e1p quang ph\u1ed5 N,N-Diethyl-1,4-phenylenediamine (DPD)<\/td>\n<\/tr>\n \n M\u00f4 h\u00ecnh<\/td>\n CLA-7122<\/td>\n CLA-7222<\/td>\n CLA-7123<\/td>\n CLA-7223<\/td>\n<\/tr>\n \n K\u00eanh n\u01b0\u1edbc v\u00e0o<\/td>\n K\u00eanh \u0111\u01a1n<\/td>\n K\u00eanh k\u00e9p<\/td>\n K\u00eanh \u0111\u01a1n<\/td>\n K\u00eanh k\u00e9p v\u00e0 nbsp;<\/td>\n<\/tr>\n \n Ph\u1ea1m vi \u0111o<\/td>\n T\u1ed5ng clo : (0,0 \uff5e 2,0)mg\/L , t\u00ednh b\u1eb1ng Cl2 ;<\/td>\n T\u1ed5ng clo : (0,5 \uff5e10,0)mg\/L , t\u00ednh b\u1eb1ng Cl2 ;<\/td>\n<\/tr>\n \n pH\uff1a\uff080-14\uff09\uff1bnhi\u1ec7t \u0111\u1ed9\uff1a\uff080-100\uff09\u2103<\/td>\n<\/tr>\n \n \u0110\u1ed9 ch\u00ednh x\u00e1c<\/td>\n Clor d\u01b0: \u00b110 ph\u1ea7n tr\u0103m ho\u1eb7c 0,05mg\/L (t\u00f9y theo gi\u00e1 tr\u1ecb n\u00e0o l\u1edbn h\u01a1n), t\u00ednh b\u1eb1ng Cl2; T\u1ed5ng clo: \u00b110 ph\u1ea7n tr\u0103m ho\u1eb7c 0,05mg\/L (t\u00f9y theo gi\u00e1 tr\u1ecb n\u00e0o l\u1edbn h\u01a1n), t\u00ednh b\u1eb1ng Cl2<\/td>\n Clorin t\u1ef1 do: \u00b110 ph\u1ea7n tr\u0103m ho\u1eb7c 0,25mg\/L (t\u00f9y theo gi\u00e1 tr\u1ecb n\u00e0o l\u1edbn h\u01a1n), t\u00ednh b\u1eb1ng Cl2; T\u1ed5ng clo: \u00b110 ph\u1ea7n tr\u0103m ho\u1eb7c 0,25mg\/L (t\u00f9y theo gi\u00e1 tr\u1ecb n\u00e0o l\u1edbn h\u01a1n), t\u00ednh b\u1eb1ng Cl2<\/td>\n<\/tr>\n \n pH:\u00b10.1pH\uff1bNhi\u1ec7t \u0111\u1ed9.:\u00b10.5\u2103<\/td>\n<\/tr>\n \n Chu k\u1ef3 \u0111o<\/td>\n Clo t\u1ef1 do\u22642,5 ph\u00fat<\/td>\n<\/tr>\n \n Kho\u1ea3ng th\u1eddi gian l\u1ea5y m\u1eabu<\/td>\n Kho\u1ea3ng th\u1eddi gian (1\uff5e999) ph\u00fat c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c \u0111\u1eb7t th\u00e0nh b\u1ea5t k\u1ef3 gi\u00e1 tr\u1ecb n\u00e0o<\/td>\n<\/tr>\n \n Chu k\u1ef3 b\u1ea3o tr\u00ec<\/td>\n Khuy\u1ebfn ngh\u1ecb m\u1ed7i th\u00e1ng m\u1ed9t l\u1ea7n (xem ch\u01b0\u01a1ng b\u1ea3o tr\u00ec)<\/td>\n<\/tr>\n \n M\u00f4i tr\u01b0\u1eddng<\/td>\n Ph\u00f2ng th\u00f4ng tho\u00e1ng, kh\u00f4 r\u00e1o kh\u00f4ng b\u1ecb rung l\u1eafc m\u1ea1nh; Nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng \u0111\u1ec1 xu\u1ea5t: (15 \uff5e 28)\u2103; \u0111\u1ed9 \u1ea9m t\u01b0\u01a1ng \u0111\u1ed1i: \u226485 ph\u1ea7n tr\u0103m (kh\u00f4ng ng\u01b0ng t\u1ee5).<\/td>\n<\/tr>\n \n y\u00eau c\u1ea7u<\/td>\n<\/tr>\n \n D\u00f2ng n\u01b0\u1edbc m\u1eabu<\/td>\n \uff08200-400\uff09 mL\/ph\u00fat<\/td>\n<\/tr>\n \n \u00e1p l\u1ef1c n\u01b0\u1edbc \u0111\u1ea7u v\u00e0o<\/td>\n \uff080.1-0.3\uff09 thanh<\/td>\n<\/tr>\n \n Ph\u1ea1m vi nhi\u1ec7t \u0111\u1ed9 n\u01b0\u1edbc \u0111\u1ea7u v\u00e0o<\/td>\n \uff080-40\uff09\u2103<\/td>\n<\/tr>\n \n Ngu\u1ed3n \u0111i\u1ec7n<\/td>\n AC (100-240)V\uff1b 50\/60Hz<\/td>\n<\/tr>\n \n Ti\u00eau th\u1ee5<\/td>\n 120W<\/td>\n<\/tr>\n \n K\u1ebft n\u1ed1i ngu\u1ed3n<\/td>\n D\u00e2y ngu\u1ed3n 3 l\u00f5i c\u00f3 ph\u00edch c\u1eafm \u0111\u01b0\u1ee3c n\u1ed1i v\u00e0o \u1ed5 c\u1eafm \u0111i\u1ec7n b\u1eb1ng d\u00e2y n\u1ed1i \u0111\u1ea5t<\/td>\n<\/tr>\n \n \u0110\u1ea7u ra d\u1eef li\u1ec7u<\/td>\n RS232\/RS485\/\uff084\uff5e20\uff09mA<\/td>\n<\/tr>\n \n K\u00edch th\u01b0\u1edbc k\u00edch th\u01b0\u1edbc<\/td>\n H*W*D:\uff08800*400*200\uff09mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n ![\"alt-489\"](\"https:\/\/chimaytech.net\/wp-content\/uploads\/2024\/05\/BSQ-2019-Water-Quality-Monitoring-Transmitter-Single-channel-EC-ER-1-1.png\")
\nT\u00f3m l\u1ea1i, kh\u00f4ng th\u1ec3 ph\u00f3ng \u0111\u1ea1i t\u1ea7m quan tr\u1ecdng c\u1ee7a vi\u1ec7c s\u1eed d\u1ee5ng m\u00e1y \u0111o TDS \u0111\u1ec3 ki\u1ec3m tra ch\u1ea5t l\u01b0\u1ee3ng n\u01b0\u1edbc. Nh\u1eefng \u0111\u1ed3ng h\u1ed3 \u0111o n\u00e0y cung c\u1ea5p th\u00f4ng tin c\u00f3 gi\u00e1 tr\u1ecb v\u1ec1 \u0111\u1ed9 tinh khi\u1ebft v\u00e0 an to\u00e0n c\u1ee7a n\u01b0\u1edbc u\u1ed1ng, gi\u00fap ch\u00fang t\u00f4i x\u00e1c \u0111\u1ecbnh c\u00e1c v\u1ea5n \u0111\u1ec1 ti\u1ec1m \u1ea9n v\u00e0 th\u1ef1c hi\u1ec7n c\u00e1c bi\u1ec7n ph\u00e1p th\u00edch h\u1ee3p \u0111\u1ec3 gi\u1ea3i quy\u1ebft ch\u00fang. Cho d\u00f9 b\u1ea1n l\u00e0 ch\u1ee7 nh\u00e0, chuy\u00ean gia x\u1eed l\u00fd n\u01b0\u1edbc hay nh\u00e0 nghi\u00ean c\u1ee9u, \u0111\u1ed3ng h\u1ed3 TDS l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 c\u00f3 gi\u00e1 tr\u1ecb \u0111\u1ec3 \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng ngu\u1ed3n n\u01b0\u1edbc c\u1ee7a b\u1ea1n. B\u1eb1ng c\u00e1ch th\u01b0\u1eddng xuy\u00ean ki\u1ec3m tra m\u1ee9c TDS trong n\u01b0\u1edbc, b\u1ea1n c\u00f3 th\u1ec3 b\u1ea3o v\u1ec7 s\u1ee9c kh\u1ecfe c\u1ee7a m\u00ecnh v\u00e0 s\u1ee9c kh\u1ecfe c\u1ee7a nh\u1eefng ng\u01b0\u1eddi th\u00e2n y\u00eau.<\/p>\n","protected":false},"excerpt":{"rendered":"