71.120.30 - Heat exchangers

DB41/T 1886-2019 in English

VALID

Issued on:2019-09-30 | Implemented on:2019-12-30

DB22/T 2669-2017 in English

VALID

Issued on:2017-06-12 | Implemented on:2017-08-12

DB21/T 2546-2015 in English

VALID

Issued on:2015-12-10 | Implemented on:2016-02-10

CJ/T 467-2014 in English

Semi-instantaneous water heate

VALID

Issued on:2014-12-04 | Implemented on:2015-05-01

DB32/T 2681-2014 in English

VALID

Issued on:2014-05-20 | Implemented on:2014-06-20

DB44/T 1170-2013 in English

VALID

Issued on:2013-08-24 | Implemented on:2013-11-24

DB32/T 2196-2012 in English

VALID

Issued on:2012-12-31 | Implemented on:2013-01-01

GB/T 28712.6-2012 in English

Type and basic parameters of heat exchanger - Part 6：air cooled heat exchanger

SUPERSEDED

Issued on:2012-09-03 | Implemented on:2013-01-01

GB/T 28712.4-2012 in English

Types and basic parameters of heat exchangers - Part 4: vertical thermo-siphon reboilers

SUPERSEDED

Issued on:2012-09-03 | Implemented on:2013-01-01

GB/T 28712.3-2012 in English

Types and basic parameters of heat exchangers - Part 3: U-tube heat exchangers

SUPERSEDED

Issued on:2012-09-03 | Implemented on:2013-01-01