|
|
 Grade 1 is the highest quality standard laid down by the Bureau of Indian Standards (BIS). Grade 1 soap is a soap which has a minimum TFM (Total Fatty Matter) content of 76% and also has the least number of additives, thus making it a pure soap. In a similar manner, depending on the TFM content and the level of additives present in the soap, they can be further classified as Grade 2, Grade 3 as well as Bathing Bars |
|
TABLE 1 Requirement for Toilet soap as per IS : 2888 - 1983
(Clauses 4.4,6.3,1 &7.1) |
|
Requirement for bathing bar as per IS : 13498 - 1997 |
|
Characteristics |
Requirement for: |
Method of Test (REF TO CL NO. IN IS : 286-1978*) |
Bathing Bar |
|
Grade I |
Grade II |
Grade III |
|
Total fatty matter percent by mass, Min |
76.0 |
70.0 |
60.0 |
15 |
40 |
|
Rosin acid, percent by mass, of total fatty matter, Max |
3.0 |
7.0 |
7.0 |
14 |
- |
|
Free caustic alkali, as sodium hydroxide (NaOH), percent by mass, Max |
0.05 |
0.05 |
0.05 |
6.2 |
0.05 |
|
Matter insoluble in alcohol, percent by mass, Max |
2.5 |
5.0 |
6.0 |
5 |
- |
|
Chlorides (as sodium chloride), percent by mass, Max |
1.50 |
1.50 |
1.50 |
10 |
- |
|
Free carbonate alkali, percent by mass, Max |
1.0 |
1.0 |
1.0 |
28 |
1.0 |
|
Lather |
280 |
240 |
200 |
Annex B of IS 13498 : 1992+ |
- |
|
* Methods of sampling and test for soaps (second revision)
+ Bathing bar - Specification.
|
++ Synthetic surface active agent(% by mass) : 4 min |
|
