1. A method of cleaning the interior surfaces of a non-loaded washing machine or a non-loaded automatic dishwasher with a particulate composition by forming in said washing machine or automatic dishwasher an acidic aqueous liquor comprising water and dissolved or dispersed therein said particulate composition, wherein said particulate composition comprises an effervescence system and sufficient acid to form an acidic aqueous liquor having a pH of below 4.
2. A method according to claim 1, wherein said acidic aqueous liquor is used at a temperature of from the temperature of unheated water to about 95\xb0 C.
3. A method according to claim 1, wherein said acidic aqueous liquor is used at a temperature of from about 30\xb0 C. to about 60\xb0 C.
4. A method according to claim 1, wherein said particulate composition is dissolved up to about 2000 times its own weight.
5. A method according to claim 1, wherein said acid is an organic acid or an inorganic acid or a mixture thereof.
6. A method according to claim 1, wherein said acid is an organic acid selected from the group consisting of: succinic acid, maleic acid, malonic acid, citric acid, glutaric acid, malic acid, adipic acid, pimelic acid, suberic acid, azelaic acid, phtalic acid, isophthalic acid, terephthalic acid, hemimellitic acid, trimellitic acid, trimesic acid, mellophanic acid, prehnitic acid, pyromellitic acid, benzenepentacarboxylic acid, and mellitic acid and mixtures thereof.
7. A method according to claim 1, wherein said acid is selected from the group consisting of citric acid, sulphamic acid, and maleic acid and mixtures thereof.
8. A method according to claim 1, wherein said acid is citric acid.
9. A method according to any of the preceding claims, wherein said acid is present in a sufficient amount to form an acidic aqueous liquor having a pH of below about 3.8.
10. A method according to claim 1, wherein said effervescence system is a single-component effervescence system or multi-component effervescence system.
11. A method according to claim 1, wherein said effervescence system is a multi-component effervescence system, more preferably comprises citric acid and carbonate andor bicarbonate.
12. A method according to any of the preceding claims, wherein said particulate composition comprises from about 0.1% to about 50% by weight of the total composition of said effervescence system.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A tool to manipulate a length of wrought iron, said tool comprising:
a) a top face, a bottom face, and at least one side wall,
b) said side wall containing a recess,
c) said recess comprising a channel which extends across said side wall and is sufficiently wide and deep to accommodate the length of wrought iron, while a twisting motion is imparted thereto,
d) said top face and said bottom face being provided with differently sized raised portions having different radii and heights,
e) the outer peripheries of the raised portions on said top face and said bottom face providing bending surfaces for the length of wrought iron,
f) each of said raised portions further containing a recess with an enlarged inner surface adapted to trap an end of the length of wrought iron whereby the length of wrought iron can be bent around the periphery of the raised portion to form a decorative curve.
2. The tool as defined in claim 1 wherein said channel includes a smaller, elongated slot adapted to trap an end of the length of wrought iron so that a twisting motion imparted thereto forms a decorative twist in the end portion of the length of wrought iron.
3. The tool as claimed in claim 2 wherein the decorative twist in the end portion of the length of wrought iron fits into said enlarged portion of said recesses within said raised portions on said top face and said bottom face.
4. The tool as claimed in claim 1, which is able to manipulate wrought iron having a width of between 5-20 mm and a thickness of between 1-10 mm.
5. The tool as claimed in claim 1, comprising a pair of opposed faces which are rectangular when viewed in plan and which have a length of between 5-30 cm and a width of between 5-30 cm.
6. The tool as claimed in claim 5, wherein the opposed faces are spaced apart by a distance of between 1-10 cm.
7. The tool as claimed in claim 1, wherein the side wall has a width of between 1-10 cm.
8. The tool as claimed in claim 1, wherein the recess in the side wall is able to locate an intermediate portion of the wrought iron andor an end of the wrought iron.