РОССТАНДАРТ 31.12.2019https://www.gost.ru/portal/gost/home/presscenter/news?portal:componentId=88beae40-0e16-414c-b176-d0ab5de82e16&navigationalstate=JBPNS_rO0ABXczAAZhY3Rpb24AAAABAA5zaW5nbGVOZXdzVmlldwACaWQAAAABAAQ2NTkzAAdfX0VPRl9f
