{"id":605392,"date":"2024-11-05T22:27:58","date_gmt":"2024-11-05T22:27:58","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/iso-21360-42018\/"},"modified":"2024-11-05T22:27:58","modified_gmt":"2024-11-05T22:27:58","slug":"iso-21360-42018","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/iso\/iso-21360-42018\/","title":{"rendered":"ISO 21360-4:2018"},"content":{"rendered":"

This document, in conjunction with ISO 21360-1, specifies methods for the measurement of performance characteristics of turbomolecular vacuum pumps. It is applicable to all sizes and all types of turbomolecular vacuum pumps, including those<\/p>\n

\u2014 with mechanical or magnetic bearings;<\/p>\n

\u2014 with or without an additional drag stage(s) or other pumping stages on the shaft;<\/p>\n

\u2014 with one or more inlet ports.<\/p>\n

Since turbomolecular vacuum pumps are backed by primary pumps, their performance cannot be completely defined by the volume flow rate curve. Also, the driving device and the backing pressure of the turbomolecular vacuum pump is important to the performance.<\/p>\n

The following completes the performance characteristics:<\/p>\n

\u2014 information about throughputs and backing pressure of the turbomolecular vacuum pump;<\/p>\n

\u2014 the compression ratio curve (compression ratio vs backing pressure of turbomolecular vacuum pump).<\/p>\n","protected":false},"excerpt":{"rendered":"

Vacuum technology \u2014 Standard methods for measuring vacuum-pump performance \u2014 Part 4: Turbomolecular vacuum pumps<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ISO<\/b><\/a><\/td>\n2018-07<\/td>\n18<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":605403,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[376,2634],"product_tag":[],"class_list":{"0":"post-605392","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-23-160","7":"product_cat-iso","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\/605392","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\/605403"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=605392"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=605392"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=605392"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}