{"id":469,"date":"2024-10-01T16:50:36","date_gmt":"2024-10-01T16:50:36","guid":{"rendered":"http:\/\/castco.wpenginepowered.com\/?post_type=ht_kb&#038;p=469"},"modified":"2024-12-06T17:20:44","modified_gmt":"2024-12-06T17:20:44","slug":"lamotte-test-strips-phosphates-low-range","status":"publish","type":"ht_kb","link":"https:\/\/castco.org\/knowledge-base\/lamotte-test-strips-phosphates-low-range\/","title":{"rendered":"Method audit: Phosphate \u2013 LaMotte Insta-Test test strips"},"content":{"rendered":"\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-columns are-vertically-aligned-center is-layout-flex wp-container-core-columns-is-layout-9d6595d7 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<h3 class=\"wp-block-heading\">Overview of the LaMotte Insta-Test test strips \u2013 Phosphate (low range) <\/h3>\n\n\n\n<p><a href=\"http:\/\/h!ps:\/\/www.lamo!e-europe.com\/products\/pool-and-spa\/test- strips\/insta-test-low-range-phosphate-test-strips\/en\" target=\"_blank\" rel=\"noreferrer noopener\">LaMotte low-range p<\/a>hosphate test strips measure the phosphate levels in a water sample. The pack include 25 test strips, a sample vial and a colour change chart (printed on the bottle). Within around 15 seconds, a colour change will develop in the sample vial; the user must then compare the colour change in the tube against the colour chart. Due to the need to estimate which colour the sample matches, this method is considered semi-quantitative.<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-medium is-resized\"><img decoding=\"async\" width=\"640\" height=\"728\" data-src=\"https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/Screenshot-on-2024-12-06-at-12-18-22-640x728.png\" alt=\"\" class=\"wp-image-3011 lazyload\" style=\"--smush-placeholder-width: 640px; --smush-placeholder-aspect-ratio: 640\/728;width:612px;height:auto\" data-srcset=\"https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/Screenshot-on-2024-12-06-at-12-18-22-640x728.png 640w, https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/Screenshot-on-2024-12-06-at-12-18-22-1024x1165.png 1024w, https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/Screenshot-on-2024-12-06-at-12-18-22-768x874.png 768w, https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/Screenshot-on-2024-12-06-at-12-18-22-44x50.png 44w, https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/Screenshot-on-2024-12-06-at-12-18-22.png 1130w\" data-sizes=\"(max-width: 640px) 100vw, 640px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<h4 class=\"wp-block-heading\"><\/h4>\n\n\n\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<figure class=\"wp-block-image alignleft size-thumbnail\"><img decoding=\"async\" width=\"150\" height=\"150\" data-src=\"https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/10-150x150.png\" alt=\"\" class=\"wp-image-3004 lazyload\" data-srcset=\"https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/10-150x150.png 150w, https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/10-640x640.png 640w, https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/10-768x768.png 768w, https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/10-50x50.png 50w, https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/10.png 915w\" data-sizes=\"(max-width: 150px) 100vw, 150px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 150px; --smush-placeholder-aspect-ratio: 150\/150;\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-thumbnail\"><img decoding=\"async\" width=\"150\" height=\"150\" data-src=\"https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/16-1-150x150.png\" alt=\"\" class=\"wp-image-3006 lazyload\" data-srcset=\"https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/16-1-150x150.png 150w, https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/16-1-640x640.png 640w, https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/16-1-1024x1025.png 1024w, https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/16-1-768x769.png 768w, https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/16-1-50x50.png 50w, https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/16-1-1280x1281.png 1280w, https:\/\/castco.org\/wp-content\/uploads\/2024\/10\/16-1.png 1367w\" data-sizes=\"(max-width: 150px) 100vw, 150px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 150px; --smush-placeholder-aspect-ratio: 150\/150;\" \/><\/figure>\n<\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Suitability for monitoring purposes<\/h3>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong>Monitoring purpose category<\/strong><\/td><td><strong>Likely Tier(s)<\/strong><\/td><td><strong>Suitability<\/strong><\/td><\/tr><tr><td>Engagement: Education and raising awareness<\/td><td>0-1<\/td><td>\u2713<\/td><\/tr><tr><td>Surveillance: Ecosystem health screening<\/td><td>1 (2)<\/td><td>?<\/td><\/tr><tr><td>Investigation: Helping to target further action<\/td><td>2 (3)<\/td><td>\u2716<\/td><\/tr><tr><td>Evaluation: Assessing the impact of actions<\/td><td>2 (3)<\/td><td>\u2716<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>Details: <\/strong>Measures phosphate in the range 0 \u2013 2500 ppb as PO<sub>4<\/sub>. Steps are 0, 100, 200, 300, 500, 1000 and 2500 ppb. Accuracy is not stated but assumed to be +\/1 half a \u2018step\u2019.<\/p>\n\n\n\n<p><strong>Data System:<\/strong> N\/A. Results are not stored on a device, so must be recorded and stored by the user. <\/p>\n\n\n\n<p><strong>Cost: <\/strong>VERY LOW. Around \u00a37 inc. VAT per pack of 25 (c. \u00a30.25\/test).<\/p>\n\n\n\n<p><strong>Ease of use:<\/strong> EASY. Reagents are impregnated into each strip so users do not come into direct contact with them, and filling the sample vial with a 10mL syringe is easier (not provided).<\/p>\n\n\n\n<p><strong>Quality control: <\/strong>Local coordinators responsible for quality control. Measurement likely affected by extremes of temperature and turbidity so a good idea to measure and record those alongside the phosphate measurement if possible. Older strips can become unresponsive before the end of their shelf life.<\/p>\n\n\n\n<p><strong>Coverage \/ scale:<\/strong> Can be used anywhere \u2013 currently used by local \/ regional groups. <\/p>\n\n\n\n<p><strong>Health &amp; safety: <\/strong>No known issues; users should not be touching the pad on the strips.<\/p>\n\n\n\n<p><\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Overview of the LaMotte Insta-Test test strips \u2013 Phosphate (low range) LaMotte low-range phosphate test strips measure the phosphate levels in a water sample. The&#8230;<\/p>\n","protected":false},"author":2,"comment_status":"closed","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"ht-kb-category":[34],"ht-kb-tag":[],"class_list":["post-469","ht_kb","type-ht_kb","status-publish","format-standard","hentry","ht_kb_category-water-quality-methods"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Method audit: Phosphate \u2013 LaMotte Insta-Test test strips - CastCo<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/castco.org\/knowledge-base\/lamotte-test-strips-phosphates-low-range\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Method audit: Phosphate \u2013 LaMotte Insta-Test test strips - CastCo\" \/>\n<meta property=\"og:description\" content=\"Overview of the LaMotte Insta-Test test strips \u2013 Phosphate (low range) LaMotte low-range phosphate test strips measure the phosphate levels in a water sample. 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