{"product_id":"horiba-laquatwin-standard-amp-calibration-solutions","title":"Horiba LAQUAtwin Standard \u0026 Calibration Solutions","description":"\u003cp\u003eGenuine HORIBA standard and calibration solutions for LAQUAtwin pocket meters. Most are supplied as sets of six 14 mL sachets — a single-use format that keeps every calibration traceable to fresh, uncontaminated standard. Once a sachet is opened it is used and discarded, so there is no bottle sitting on a shelf slowly absorbing carbon dioxide or growing biofilm.\u003c\/p\u003e\n\n\u003cp\u003eCalibration is only as good as the standard behind it. Standards drift with age and contaminate quickly once opened, and a meter calibrated against a degraded standard reads confidently wrong. The sachet format removes that failure mode entirely, which is why it matters for any measurement that has to stand up to scrutiny.\u003c\/p\u003e\n\n\u003ch3\u003epH and conductivity\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e514-4\u003c\/strong\u003e (3999960108) — pH 4 standard, 6 × 14 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e514-7\u003c\/strong\u003e (3999960109) — pH 7 standard, 6 × 14 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e514-22\u003c\/strong\u003e (3999960110) — conductivity 1.41 mS\/cm, 6 × 14 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e514-23\u003c\/strong\u003e (3999960111) — conductivity 12.9 mS\/cm, 6 × 14 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e514-20\u003c\/strong\u003e (3999960114) — moistening solution, for sensor storage and conditioning\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSalt and ORP\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e514-05\u003c\/strong\u003e (3999960112) — salt 5 ppt \/ 0.5%, 6 × 14 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e514-50\u003c\/strong\u003e (3999960113) — salt 50 ppt \/ 5.0%, 6 × 14 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e514-ORP-225\u003c\/strong\u003e (3200997084) — ORP 255 mV standard, 6 × 14 mL\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eNitrate\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eY044\u003c\/strong\u003e (3200053535) — nitrate 30 ppm, 6 × 14 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eY045\u003c\/strong\u003e (3200053536) — nitrate 150 ppm, 6 × 14 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eY042\u003c\/strong\u003e (3200053514) — nitrate 300 ppm, 6 × 14 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eY043\u003c\/strong\u003e (3200053532) — nitrate 2000 ppm, 6 × 14 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eY041\u003c\/strong\u003e (3200053433) — nitrate 5000 ppm, 6 × 14 mL\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSodium, potassium and calcium\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eY022L\u003c\/strong\u003e (3200457724) — sodium 150 ppm, 6 × 14 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eY022H\u003c\/strong\u003e (3200457723) — sodium 2000 ppm, 6 × 14 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eY031L\u003c\/strong\u003e (3200457720) — potassium 150 ppm, 6 × 14 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eY031H\u003c\/strong\u003e (3200457719) — potassium 2000 ppm, 6 × 14 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eY051L\u003c\/strong\u003e (3200457728) — calcium 150 ppm, 6 × 14 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eY051H\u003c\/strong\u003e (3200457727) — calcium 2000 ppm, 6 × 14 mL\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFluoride\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e514-F-1\u003c\/strong\u003e (3200991628) — fluoride 1 ppm, 6 × 14 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e514-F-10\u003c\/strong\u003e (3200991630) — fluoride 10 ppm, 6 × 14 mL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e514-F-TISAB\u003c\/strong\u003e (3200991632) — total ionic strength adjustment buffer, 6 × 14 mL. Required for accurate fluoride measurement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCa-11C blood calcium consumables\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eY053\u003c\/strong\u003e (3200774921) — complete standard solution kit: 2 × Y052L, 2 × Y052H and 3 × #251 cleaning solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eY052L\u003c\/strong\u003e (3200774598) — 1.25 mmol\/L standard, 2 × 25 mL bottles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eY052H\u003c\/strong\u003e (3200774599) — 2.50 mmol\/L standard, 2 × 25 mL bottles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e#251\u003c\/strong\u003e (3200774601) — cleaning solution, 250 mL bottle\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCalibration guidance\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCalibrate with two standards that bracket your expected sample range for best accuracy.\u003c\/li\u003e\n\u003cli\u003eRecalibrate after fitting a new sensor, and routinely at the start of each measuring session.\u003c\/li\u003e\n\u003cli\u003eUse the high standard for ion-selective sensor conditioning before first use.\u003c\/li\u003e\n\u003cli\u003eFluoride measurements require TISAB to control ionic strength and remove interference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/static.horiba.com\/fileadmin\/Horiba\/Water_Quality\/04_Support\/Brochures\/Pocket_Meters\/Brochure_-_PBT-02-2017A_LAQUAtwin_Pocket_Water_Quality_Meter_-_LOWRES.pdf\"\u003eLAQUAtwin pocket meter brochure and specifications (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eReplacement sensors, sampling sheets and carrying cases are in the \u003ca href=\"https:\/\/envirotechonline.com\/collections\/horiba-parts-accessories\"\u003eHoriba Parts \u0026amp; Accessories\u003c\/a\u003e collection. Complete meters are in the \u003ca href=\"https:\/\/envirotechonline.com\/collections\/horiba\"\u003eHORIBA\u003c\/a\u003e collection.\u003c\/p\u003e","brand":"Horiba","offers":[{"title":"514-4 - pH 4 standard (6 x 14 ml) - 3999960108","offer_id":48226192588990,"sku":"3999960108","price":60.0,"currency_code":"USD","in_stock":true},{"title":"514-7 - pH 7 standard (6 x 14 ml) - 3999960109","offer_id":48226192621758,"sku":"3999960109","price":60.0,"currency_code":"USD","in_stock":true},{"title":"514-22 - Conductivity 1.41 mS\/cm (6 x 14 ml) - 3999960110","offer_id":48226192654526,"sku":"3999960110","price":60.0,"currency_code":"USD","in_stock":true},{"title":"514-23 - Conductivity 12.9 mS\/cm (6 x 14 ml) - 3999960111","offer_id":48226192687294,"sku":"3999960111","price":60.0,"currency_code":"USD","in_stock":true},{"title":"514-20 - Moistening solution - 3999960114","offer_id":48226192720062,"sku":"3999960114","price":60.0,"currency_code":"USD","in_stock":true},{"title":"514-05 - Salt 5 ppt \/ 0.5% (6 x 14 ml) - 3999960112","offer_id":48226192752830,"sku":"3999960112","price":60.0,"currency_code":"USD","in_stock":true},{"title":"514-50 - Salt 50 ppt \/ 5.0% (6 x 14 ml) - 3999960113","offer_id":48226192785598,"sku":"3999960113","price":60.0,"currency_code":"USD","in_stock":true},{"title":"514-ORP-225 - ORP 255 mV standard (6 x 14 ml) - 3200997084","offer_id":48226192818366,"sku":"3200997084","price":73.0,"currency_code":"USD","in_stock":true},{"title":"Y044 - Nitrate 30 ppm (6 x 14 ml) - 3200053535","offer_id":48226192851134,"sku":"3200053535","price":60.0,"currency_code":"USD","in_stock":true},{"title":"Y045 - Nitrate 150 ppm (6 x 14 ml) - 3200053536","offer_id":48226192883902,"sku":"3200053536","price":60.0,"currency_code":"USD","in_stock":true},{"title":"Y042 - Nitrate 300 ppm (6 x 14 ml) - 3200053514","offer_id":48226192916670,"sku":"3200053514","price":60.0,"currency_code":"USD","in_stock":true},{"title":"Y043 - Nitrate 2000 ppm (6 x 14 ml) - 3200053532","offer_id":48226192949438,"sku":"3200053532","price":60.0,"currency_code":"USD","in_stock":true},{"title":"Y041 - Nitrate 5000 ppm (6 x 14 ml) - 3200053433","offer_id":48226192982206,"sku":"3200053433","price":60.0,"currency_code":"USD","in_stock":true},{"title":"Y022L - Sodium 150 ppm (6 x 14 ml) - 3200457724","offer_id":48226193014974,"sku":"3200457724","price":60.0,"currency_code":"USD","in_stock":true},{"title":"Y022H - Sodium 2000 ppm (6 x 14 ml) - 3200457723","offer_id":48226193047742,"sku":"3200457723","price":60.0,"currency_code":"USD","in_stock":true},{"title":"Y031L - Potassium 150 ppm (6 x 14 ml) - 3200457720","offer_id":48226193080510,"sku":"3200457720","price":60.0,"currency_code":"USD","in_stock":true},{"title":"Y031H - Potassium 2000 ppm (6 x 14 ml) - 3200457719","offer_id":48226193113278,"sku":"3200457719","price":60.0,"currency_code":"USD","in_stock":true},{"title":"Y051L - Calcium 150 ppm (6 x 14 ml) - 3200457728","offer_id":48226193146046,"sku":"3200457728","price":60.0,"currency_code":"USD","in_stock":true},{"title":"Y051H - Calcium 2000 ppm (6 x 14 ml) - 3200457727","offer_id":48226193178814,"sku":"3200457727","price":60.0,"currency_code":"USD","in_stock":true},{"title":"514-F-1 - Fluoride 1 ppm (6 x 14 ml) - 3200991628","offer_id":48226193211582,"sku":"3200991628","price":64.0,"currency_code":"USD","in_stock":true},{"title":"514-F-10 - Fluoride 10 ppm (6 x 14 ml) - 3200991630","offer_id":48226193244350,"sku":"3200991630","price":64.0,"currency_code":"USD","in_stock":true},{"title":"514-F-TISAB - Ionic strength adjustor (6 x 14 ml) - 3200991632","offer_id":48226193277118,"sku":"3200991632","price":64.0,"currency_code":"USD","in_stock":true},{"title":"Y053 - Ca-11C standard solution kit - 3200774921","offer_id":48226193309886,"sku":"3200774921","price":454.0,"currency_code":"USD","in_stock":true},{"title":"Y052L - 1.25 mmol\/L blood calcium standard (2 x 25 ml) - 3200774598","offer_id":48226193342654,"sku":"3200774598","price":150.0,"currency_code":"USD","in_stock":true},{"title":"Y052H - 2.50 mmol\/L blood calcium standard (2 x 25 ml) - 3200774599","offer_id":48226193375422,"sku":"3200774599","price":150.0,"currency_code":"USD","in_stock":true},{"title":"#251 - Cleaning solution (250 ml) - 3200774601","offer_id":48226193408190,"sku":"3200774601","price":54.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/9926\/6750\/files\/csm_514-20_bf7ae4a520.png?v=1785337041","url":"https:\/\/envirotechonline.com\/products\/horiba-laquatwin-standard-amp-calibration-solutions","provider":"EnviroTech Services","version":"1.0","type":"link"}