{"id":214752,"date":"2024-10-19T13:55:13","date_gmt":"2024-10-19T13:55:13","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-12697-402020\/"},"modified":"2024-10-25T06:54:44","modified_gmt":"2024-10-25T06:54:44","slug":"bs-en-12697-402020","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-12697-402020\/","title":{"rendered":"BS EN 12697-40:2020"},"content":{"rendered":"

This document describes a method to determine the in situ<\/i> relative hydraulic conductivity, at specific locations, of a road surfacing that is designed to be permeable. An estimate of the average value for the surfacing is obtained from the mean value of a number of determinations on each section of road.<\/p>\n

The test measures the ability to drain water (drainability) achieved in situ<\/i> of a surfacing. As such, it can be used as a compliance check to ensure that a permeable surface course has the required properties when it is laid. The test can also be used subsequently to establish the change of drainage ability with time.<\/p>\n

For the test to be valid, the surface of the test area should be clean and free from detritus. Measurements can be made when a road is either wet or dry, but not if it is in a frozen state.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
6<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
7<\/td>\n4 Principle
5 Apparatus
5.1 Permeameter <\/td>\n<\/tr>\n
9<\/td>\n5.2 Standing board
5.3 Stopwatch
5.4 Thermometer
5.5 Water
6 Procedure
6.1 Calibration
6.2 Locations <\/td>\n<\/tr>\n
10<\/td>\n6.3 Measurement at each location
7 Calculation <\/td>\n<\/tr>\n
11<\/td>\n8 Report
9 Precision <\/td>\n<\/tr>\n
12<\/td>\nAnnex A (normative)Apparatus calibration
A.1 Application
A.2 Volume calibration
A.3 Series resistance time, r
A.4 Parallel leakage time <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Bituminous mixtures. Test methods – In situ drainability<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2020<\/td>\n16<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":214755,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[1301,2641],"product_tag":[],"class_list":{"0":"post-214752","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-93-080-20","7":"product_cat-bsi","9":"first","10":"instock","11":"sold-individually","12":"shipping-taxable","13":"purchasable","14":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/214752","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/214755"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=214752"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=214752"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=214752"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}