Kostas Ntanos Kostas Ntanos Head of Conservation Research and Development

The National Archives

Sustainable Collections Sustainable Collections ManagementManagement

Key Challenges

EvidenceSustainability targetsExpectations

The National Archives

Evidence - Monitoring

Max %ΔRH

Q1 second floor Q1 third floor Q1 fourth floor

128 RH/T Hanwell radiotelemetry monitoring sensors, logging every 15 min.

Mapping

Evidence - Investigating

21 days 31 days

Sensor on top of paper pile

Sensor in the centre of paper pile

January 2008February 2008March 2008April 2008May 2008June 2008July 2008August 2008September 2008October 2008November 2008December 2008

1 .7 1 .7 1 .6 1 .5 1 .4 1 .3 1 .2 1 .2 1 .1 1 .0 0 .9

+ 1.33 -

1 .7 1 .6 1 .5 1 .4 1 .4 1 .4 1 .4

1 .5 1 .5 1 .4 1 .4 1 .4 1 .3 1 .4

1 .6 1 .5 1 .4 1 .4 1 .3 1 .3 1 .3

1 .5 1 .5 1 .3 1 .3 1 .4

1 .5 1 .3 1 .3 1 .3 1 .4 1 .4 1 .4

1 .5 1 .5 1 .4 1 .3 1 .4 1 .4 1 .5

1 .5 1 .5 1 .4 1 .4 1 .4 1 .5 1 .5

1 .7 1 .7 1 .6 1 .7 1 .6 1 .7 1 .7

1 .6 1 .6 1 .5 1 .5 1 .6 1 .6 1 .7

1 .6 1 .6 1 .5 1 .5 1 .5 1 .5 1 .6

1 .6 1 .5 1 .5 1 .5 1 .5

1 .5 1 .3 1 .4 1 .4 1 .4 1 .4 1 .5

1 .5 1 .5 1 .4 1 .4 1 .4 1 .5 1 .5

1 .5 1 .5 1 .4 1 .4 1 .5 1 .6 1 .6

1 .8 1 .7 1 .6 1 .7 1 .6 1 .7 1 .7

1 .6 1 .6 1 .6 1 .5 1 .6 1 .6 1 .7

1 .7 1 .6 1 .5 1 .5 1 .5 1 .6 1 .6

1 .6 1 .6 1 .4 1 .4 1 .5

1 .5 1 .3 1 .4 1 .4 1 .4 1 .4 1 .4

1 .5 1 .5 1 .4 1 .4 1 .4 1 .4 1 .4

1 .7 1 .5 1 .4 1 .4 1 .4 1 .5 1 .5

1 .8 1 .7 1 .6 1 .7 1 .6 1 .7 1 .7

1 .6 1 .6 1 .5 1 .5 1 .6 1 .6 1 .7

1 .7 1 .6 1 .5 1 .5 1 .5 1 .5 1 .6

1 .6 1 .6 1 .4 1 .4 1 .5

1 .5 1 .3 1 .4 1 .4 1 .4 1 .4 1 .4

1 .5 1 .5 1 .4 1 .4 1 .4 1 .4 1 .5

1 .6 1 .5 1 .4 1 .4 1 .4 1 .5 1 .5

1 .5 1 .5 1 .4 1 .5 1 .4 1 .4 1 .5

1 .4 1 .4 1 .4 1 .3 1 .4 1 .4 1 .4

1 .4 1 .4 1 .3 1 .3 1 .3 1 .3 1 .4

1 .4 1 .3 1 .2 1 .2 1 .3

1 .3 1 .1 1 .2 1 .2 1 .2 1 .3 1 .3

1 .3 1 .3 1 .2 1 .2 1 .3 1 .3 1 .3

1 .3 1 .3 1 .2 1 .3 1 .3 1 .4 1 .3

1 .4 1 .4 1 .3 1 .4 1 .4 1 .5 1 .5

1 .4 1 .4 1 .3 1 .3 1 .4 1 .4 1 .4

1 .4 1 .3 1 .3 1 .3 1 .2 1 .3 1 .3

1 .4 1 .3 1 .2 1 .2 1 .3

1 .3 1 .1 1 .2 1 .2 1 .2 1 .2 1 .3

1 .4 1 .3 1 .3 1 .2 1 .2 1 .3 1 .3

1 .4 1 .4 1 .3 1 .3 1 .3 1 .4 1 .3

1 .3 1 .4 1 .3 1 .3 1 .3 1 .4 1 .4

1 .3 1 .3 1 .2 1 .2 1 .3 1 .3 1 .4

1 .3 1 .3 1 .2 1 .2 1 .2 1 .2 1 .3

1 .3 1 .3 1 .1 1 .2 1 .2

1 .4 1 .1 1 .2 1 .2 1 .2 1 .2 1 .2

1 .4 1 .3 1 .3 1 .2 1 .2 1 .2 1 .2

1 .4 1 .4 1 .2 1 .2 1 .2 1 .3 1 .2

1 .3 1 .3 1 .2 1 .3 1 .3 1 .4 1 .4

1 .3 1 .3 1 .2 1 .2 1 .3 1 .3 1 .3

1 .2 1 .2 1 .2 1 .2 1 .2 1 .2 1 .2

1 .3 1 .2 1 .1 1 .1 1 .2

1 .3 1 .0 1 .1 1 .1 1 .1 1 .1 1 .1

1 .3 1 .2 1 .2 1 .1 1 .1 1 .2 1 .2

1 .3 1 .3 1 .2 1 .2 1 .2 1 .2 1 .1

1 .3 1 .3 1 .2 1 .3 1 .2 1 .3 1 .3

1 .3 1 .2 1 .2 1 .1 1 .2 1 .2 1 .3

1 .2 1 .2 1 .1 1 .1 1 .1 1 .1 1 .2

1 .2 1 .2 1 .0 1 .1 1 .1

1 .2 1 .0 1 .1 1 .1 1 .1 1 .1 1 .1

1 .2 1 .2 1 .1 1 .1 1 .1 1 .1 1 .1

1 .2 1 .2 1 .1 1 .1 1 .1 1 .1 1 .1

1 .6 1 .5 1 .5 1 .5 1 .5 1 .6 1 .6

1 .5 1 .5 1 .4 1 .4 1 .5 1 .5 1 .6

1 .5 1 .4 1 .4 1 .4 1 .3 1 .4 1 .5

1 .5 1 .4 1 .2 1 .3 1 .3

1 .4 1 .1 1 .2 1 .2 1 .2 1 .2 1 .3

1 .4 1 .3 1 .3 1 .2 1 .3 1 .3 1 .3

1 .5 1 .4 1 .3 1 .3 1 .3 1 .3 1 .3

1 .5 1 .4 1 .4 1 .4 1 .3 1 .3 1 .4

1 .4 1 .4 1 .4 1 .3 1 .3 1 .3 1 .3

1 .4 1 .4 1 .3 1 .3 1 .3 1 .3 1 .3

1 .4 1 .4 1 .2 1 .2 1 .3

1 .4 1 .2 1 .3 1 .3 1 .3 1 .3 1 .3

1 .4 1 .4 1 .4 1 .3 1 .3 1 .3 1 .4

1 .5 1 .4 1 .4 1 .4 1 .4 1 .4 1 .4

1 .7 1 .6 1 .4 1 .3 1 .3 1 .3 1 .3

1 .5 1 .5 1 .4 1 .3 1 .3 1 .2 1 .3

1 .6 1 .5 1 .4 1 .3 1 .3 1 .2 1 .3

1 .6 1 .5 1 .3 1 .2 1 .3

1 .6 1 .4 1 .4 1 .4 1 .4 1 .3 1 .4

1 .6 1 .6 1 .5 1 .4 1 .4 1 .4 1 .4

1 .7 1 .6 1 .5 1 .5 1 .4 1 .4 1 .4

January 2009February 2009March 2009April 2009May 2009June 2009July 2009August 2009September 2009October 2009November 2009December 2009Evidence - Interpreting

Permanence3rd floor repository – Q1

Energy is a building energy simulation program for modelling building heating, cooling, lighting, ventilating and other energy flows. Developed by Lawrence Berkeley National Laboratory and trademark of the US Department of Energy.

Outdoor environment

Building envelope

Air/ConHAMT

Relative humidity Temperature

Centre for Sustainable HeritageThe Bartlett School of Graduate StudiesUniversity College London

Evidence - Modeling

Evidence - Modeling

Centre for Sustainable HeritageThe Bartlett School of Graduate StudiesUniversity College London

Sustainability Targets

TNA Carbon Management Plan commitment: 25% reduction in carbon from energy use, waste, water and business travel by April 2015 (baseline 2009-10).Proposed pan-government target: 25% reduction in greenhouse gas emissions from energy use in buildings and business travel by April 2015 (baseline 2009-10).

Expectations

What do we value?How long is long? 5 years? 100 years? Forever?

5% loss

10% loss

20% loss

40% loss

Key Opportunities

Standards and GuidelinesConservation ResearchTransform thinking and practice

CEN/TC 346 (Standard under development, estimated publication date is 2013/14)

PD 5454 Guide for the storage and exhibition of archival materialsPD5454:2010 by merging BS5454:2000 and PD0024

40%-60% RH, less than 10%/24h16-25ºC

40%-60% RH16-25ºC

45%-60% RH ±5%16-19ºC ±1ºC

Standards and Guidelines

Conservation Science Research

Momentum started by the AHRC/EPSRC Science and Heritage Programme

Conservation Research in progress

National Conservation Research Strategy

Transform thinking and practice

Shape policy

National Heritage Science Forum

Behaviour change

Next steps - Implementation

25

30

35

40

45

50

55

60

65

70

%RH

Relative humidity requirement for environmental conditions in repositories

Time restricted to 1d Time restricted to 3d No time restriction %RH Set point

25

30

35

40

45

50

55

60

65

70

%RH

Relative humidity requirement for environmental conditions in repositories

Time restricted to 1d Time restricted to 3d No time restriction %RH Set point

Seasonally adjusted set points and tolerances.