Replacement is guaranteed if the products are not up to the standard.; We undertake to replace the specifications.

产品不合规格，保证退换。

《新英汉大辞典》

The goods you sent are not up to the standard.

你们发运来的货物不符合标准。

youdao

Thee goods you sent are not up to the standard.

你们发运来的货物不符合标准。

youdao

U.S. markets have been strong, although not up to the standard set by Germany, Japan, Hong Kong, India, and Brazil.

FORBES: Half empty, half full, or almost drained?

Apparently, their houses were not up to the new standard.

ECONOMIST: From the archive

So there was no national expectation of success at school for young people - although nearly half of 11 year-olds were not even up to standard in the basics of literacy and numeracy and a similar proportion left school at or soon after 16 with few if any qualifications.

BBC: NEWS | UK | Politics | Full text: Blair on public services