Leather

Self-evaluation quiz

Question 1.

Of the possible cleaning techniques, which is the safest to use on leather objects?

a) Brushing with a soft bristle brush.

b) Swabbing with a slightly moistened sponge.

c) Vacuum cleaning, with the machine set on low power.

d) Gently cleaning using a granular eraser.

Question 2.

Lubrication of leather objects in a museum is only necessary if the leather:

a) is hard and dry;

b) needs protection against changes in relative humidity;

c) surface lacks sheen;

d) needs to be protected against pollutants.

Question 3.

Which of the following statements are true?

a) Tanning softens leather.

b) The term leather only refers to skin products which have been fully tanned.

c) Leather has no fat in it.

d) Tanning is a process that chemically alters skins, making them more durable and more resistant to rotting.

Question 4.

Cleaning of leather objects is recommended:

a) on a regular basis, preferably monthly;

b) for new objects before they are added to the collection, if they could contaminate other objects;

c) if the dirt is disfiguring;

d) before an object is put on display.

Question 5.

Which of the measures listed below will help to minimise mould formation on leather?

a) Avoid over-lubrication.

b) Store in the dark.

c) Maintain good air circulation.

d) Clean regularly.

e) Keep relative humidity below 65%.

Question 6.

The major advantage of water-based emulsion lubricants is that:

a) they promote an even spread of oil through the leather;

b) they do not darken the leather surface;

c) they induce greater flexibility than do solvent-based dressings;

d) they penetrate the leather better than solvent-based dressings.

Question 7.

Which of the following statements about storing leather are correct?

a) Folds and creases should be avoided.

b) Buffered acid-free tissue should be used for support.

c) Long leather pieces should be stored horizontally.

d) Storage cupboards should be made of painted metal.

e) Low light levels are best.

Question 8.

In the long term, over-lubrication of leather can cause:

(i) increased desiccation of the leather;

(ii) formation of fatty spews;

(iii) a leather that is too soft;

(iv) formation of mould under conditions of high RH;

(v) the attraction of dust to a greasy surface.

Which of the above statements are correct?

a) All of them.

b) (i), (ii), (iii) and (iv).

c) (ii), (iii), (iv) and (v).

d) (i), (ii), (iv) and (v).