An example proving that WAIT_AT_LOW_PRIORITY works in Standard Edition.

WAIT_AT_LOW_PRIORITY_Standard_Edition_Example.sql

USE mycrappydatabase
GO
CREATE PARTITION FUNCTION pf(INT) AS RANGE LEFT FOR VALUES (5,10,15);
GO
CREATE PARTITION SCHEME ps AS PARTITION pf ALL TO ([PRIMARY]);
GO
CREATE TABLE partitionexample(id INT PRIMARY KEY) ON ps(id);
GO
INSERT dbo.partitionexample
(
    id
)
VALUES
(3), (4),(7),(12),(13)
GO
CREATE TABLE staging_partitionexample(id INT PRIMARY KEY) ON ps(id);

--now, in other window: 
--BEGIN TRANSACTION 
-- UPDATE dbo.partitionexample SET id = 8 WHERE id = 7

ALTER TABLE partitionexample
SWITCH PARTITION 2 TO  [staging_partitionexample] PARTITION 2
WITH (WAIT_AT_LOW_PRIORITY (MAX_DURATION = 1 MINUTES, ABORT_AFTER_WAIT = blockers)); 

ALTER TABLE [staging_partitionexample]
SWITCH PARTITION 2 TO  partitionexample PARTITION 2