{"id":211409,"date":"2024-10-19T13:40:41","date_gmt":"2024-10-19T13:40:41","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/asse-1012-2009\/"},"modified":"2024-10-25T06:29:02","modified_gmt":"2024-10-25T06:29:02","slug":"asse-1012-2009","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/asse\/asse-1012-2009\/","title":{"rendered":"ASSE 1012 2009"},"content":{"rendered":"

The devices covered by this standard are those which have functional capabilities for preventing both back-siphonage and back pressure and which can operate under continuous or intermittent pressure conditions. These devices have two (2) independently operating check valves separated by an intermediate chamber with a means for automatically venting it to the atmosphere and can be installed in the horizontal, vertical up or vertical down orientations. The check valves are force loaded to a normally closed position and the venting means is force loaded to a normally open position.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
1<\/td>\nSection I
1.0 General
1.1 Application
1.2 Scope
1.3 Reference Standards <\/td>\n<\/tr>\n
2<\/td>\nSection II
2.0 Test Specimens
2.1 Samples Submitted for Test
2.2 Samples Tested
2.3 Drawings
2.4 Rejection <\/td>\n<\/tr>\n
13<\/td>\nSection III
3.0 Performance Requirements and Compliance Testing
3.1 Hydrostatic Testing of Complete Device
Figure 1
3.2 Hydrostatic Test of Downstream Check <\/td>\n<\/tr>\n
14<\/td>\n3.3 Shock (Water Hammer) Test of the Device
3.4 Reseating Tightness of the Downstream Check
3.5 Reseating Tightness of the Upstream Check <\/td>\n<\/tr>\n
15<\/td>\n3.6 Atmospheric Vent Valve Leakage
3.7 Backflow Through Upstream Check
Figure 2 <\/td>\n<\/tr>\n
16<\/td>\n3.8 Atmospheric Vent Open Pressures
3.9 Back Siphonage
T
\n able 1
Figure 3
Figure 4
Figure 5 <\/td>\n<\/tr>\n
17<\/td>\nFigure 6
3.10 Back Siphonage Back Pressure
3.11 Flow and Pressure Loss <\/td>\n<\/tr>\n
18<\/td>\nT
\n able 2
3.12 Flow with Low Supply Pressure
3.13 Deterioration at Extremes of Manufacturer\u2019s Temperature Range <\/td>\n<\/tr>\n
19<\/td>\nFigure 7
Table 3 <\/td>\n<\/tr>\n
20<\/td>\nSection IV
4.0 Detailed Requirements
4.1 Materials
4.2 Markings <\/td>\n<\/tr>\n
21<\/td>\nSection V
5.0 Definitions <\/td>\n<\/tr>\n
22<\/td>\nAppendix A
A1.0 Installation Instructions <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

ASSE Standard #1012-2009 Performance Requirements for Backflow Preventers with Intermediate Atmospheric Vent<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
ASSE<\/b><\/a><\/td>\n2009<\/td>\n24<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":211415,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2669],"product_tag":[],"class_list":{"0":"post-211409","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-asse","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/211409","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\/211415"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=211409"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=211409"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=211409"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}