BS 890:1972

Co-operating organizations
Foreword
Specification
1 General
1.1 Scope
1.2 Water for testing
1.3 Certificate of test
1.4 Independent tests
1.5 Lime in tropical climates
2 Hydrated lime (powder)
2.1 Classification
2.2 Description
2.3 Size of sample and method of sampling
2.4 Composition
2.5 Physical tests
3 Quicklime
3.1 Classification
3.2 Description
3.3 Size of sample and method of sampling
3.4 Composition
3.5 Physical tests
4 Lime putty
4.1 Classification
4.2 Description
4.3 Size of sample and method of sampling
4.4 Composition
4.5 Physical tests
Appendices
A Sampling of lime
B Determination of matter insoluble in hydrochloric
     acid
C Determination of soluble salts
D Determination of soluble silica
E Determination of fineness of dry hydrated lime and
     of lime putty, and determination of water content
     of lime putty
F General expansion test for dry hydrated lime
G Determination of soundness of hydrated lime by the
     pat test
H Descriptions of standard flow-table and mould
J Preparation of lime putty of standard consistence
K Determination of density of putty and volume yield
     of lime
L Determination of workability
M Determination of hydraulic strength
N Standard method of isothermal slaking of quicklime
P Method for determination of residue on slaking
Q Test for separation of water from lime putty on
     standing
Tables
1 Chemical requirements for hydrated lime (powder)
2 Physical requirements for hydrated lime (powder)
3 Chemical requirements for quicklime
4 Physical requirements for quicklime
5 Chemical requirements for lime putty
6 Physical requirements for lime putty
Figures
1 Sampling tube
2 Sampling points for a truck of lime putty
3 Le Chatelier mould
4 Apparatus for measuring extensibility of Le
     Chatelier moulds
5 Steam cabinet for soundness tests
6 Typical trowel
7 Flow-table
8 Flow-table and conical mould
9 Typical putty density vessel

In four parts: general; hydrated lime (powder); quicklime; lime putty. Requirements for water for testing; certificate of test; independent tests; lime in tropical climates; classification, description; size of sample and method of sampling; composition, physical tests. Appendices include: matter insoluble in hydrochloric acid; soluble salts; soluble silica; fineness of dry hydrated lime and of lime putty; water content of lime putty; expansion of dry hydrated lime; soundness of hydrated lime; flow ta ble and mould, lime putty of standard consistence; density of putty and volume yield of lime; workability; hydraulic strength; isothermal slaking of quicklime; determination of residue on slaking; separation of water from lime putty on standing.