{"id":11439,"date":"2025-12-23T11:58:46","date_gmt":"2025-12-23T11:58:46","guid":{"rendered":"https:\/\/ykmtest.com\/?post_type=product&#038;p=11439"},"modified":"2025-12-23T12:10:14","modified_gmt":"2025-12-23T12:10:14","slug":"reference-colours-glasses","status":"publish","type":"product","link":"https:\/\/ykmtest.com\/ru\/product\/reference-colours-glasses\/","title":{"rendered":"\u041e\u0447\u043a\u0438 \u044d\u0442\u0430\u043b\u043e\u043d\u043d\u044b\u0445 \u0446\u0432\u0435\u0442\u043e\u0432"},"content":{"rendered":"<p class=\"p2\"><span lang=\"TR\">The test is carried out particularly to detect whether natural sands used in concrete and mortar production contain plant-derived organic substances. Since the organic content may adversely affect the cement hydration process, the test result can directly determine the suitability of the material for concrete mixtures. This test is defined in TS EN 1744-1 and ASTM C40 standards. During the test, a fine aggregate sample is mixed with a 3% sodium hydroxide (NaOH) solution and allowed to stand for a specified period. The colour of the resulting solution is compared with the standard colours on the Reference Colour Scale. If the obtained colour is darker than the reference colour, the sample is considered to contain organic matter. The reference Colour Scale consists of stable colours prepared within durable plexiglass tubes. The colour scale includes 7 different colours.<\/span><\/p>","protected":false},"excerpt":{"rendered":"<p>Reference Colour Scale is a standard comparison device used to determine the presence and quantity of organic matter in fine aggregates.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false},"product_brand":[],"product_cat":[135,140],"product_tag":[],"class_list":{"0":"post-11439","1":"product","2":"type-product","3":"status-publish","5":"product_cat-aggregate","6":"product_cat-chemical-properties","9":"instock","10":"shipping-taxable","11":"product-type-simple"},"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.5 (Yoast SEO v27.5) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Reference Colours Glasses - YKM TEST<\/title>\n<meta name=\"description\" content=\"Reference Colour Scale detects and quantifies organic matter in fine aggregates for concrete and mortar, ensuring suitability for cement hydration.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/darkorchid-cheetah-525435.hostingersite.com\/product\/reference-colours-glasses\/\" \/>\n<meta property=\"og:locale\" content=\"ru_RU\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Reference Colours Glasses\" \/>\n<meta property=\"og:description\" content=\"Reference Colour Scale detects and quantifies organic matter in fine aggregates for concrete and mortar, ensuring suitability for cement hydration.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/darkorchid-cheetah-525435.hostingersite.com\/product\/reference-colours-glasses\/\" \/>\n<meta property=\"og:site_name\" content=\"YKM TEST\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-23T12:10:14+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u0426\u0435\u043d\u0430\" \/>\n\t<meta name=\"twitter:data1\" content=\"\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u0414\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c\" \/>\n\t<meta name=\"twitter:data2\" content=\"\u0412 \u043d\u0430\u043b\u0438\u0447\u0438\u0438\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/darkorchid-cheetah-525435.hostingersite.com\\\/product\\\/reference-colours-glasses\\\/\",\"url\":\"https:\\\/\\\/darkorchid-cheetah-525435.hostingersite.com\\\/product\\\/reference-colours-glasses\\\/\",\"name\":\"Reference Colours Glasses - 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