Page 358 - The Central Motor Vehicles Rules, 1989

330 THE CENTRAL MOTOR VEHICLES RULES, 1989 RULE 137

Note : The flammability shall be determined by tests or by calculation in accordance
with methods adopted by International Standards Organization (ISO:10156: 1996] or by
Bureau of Indian Standards (IS: 1446 - 1985).
(ii) Extremely Flammable Liquids
Chemicals which have flash point lower than or equal to 23˚C and boiling
point less than 35˚C.
(iii) Very Highly Flammable Liquids
Chemicals which have a flash point lower than or equal to 23˚C and initial
boiling point higher than 35˚C.
(iv) Highly Flammable Liquids
Chemicals with a flash point lower than or equal to 60˚C but higher than
23˚C.
(v) Flammable Liquids
Chemicals which have a flash point higher than 60˚C but lower than 90˚C.
(D) Reactive Substances:
Reactive substances are those substances which start reacting chemically with any
other material and reducing gases through their own decomposition. Such substances
are Inorganic Alkalies (for example NaOH, Iodine and the like) and Acids (for example
H2SO4, HNO3, HCL and the like)
(E) Oxidizing Substances:
(a) Oxidizing substances
Substances which, while in themselves not necessarily combustible, may
generally by yielding oxygen, cause or contribute to the combustion of other
material. Such substances may be contained in an article;
(b) Organic peroxides
Organic substances which contain the bivalent 0-0—structure and may be
considered derivative of hydrogen peroxide, where one or both of the
hydrogen atoms have been replaced by organic radials. Organic peroxides
are thermally unstable substances which may undergo exothermic
self-accelerating decomposition. In addition, they may have one or more of
the following properties,—
(i) be liable to explosive decomposition;
(ii) burn rapidly;
(iii) be sensitive to impact or friction;
(iv) react dangerously with other substances;
(v) cause damage to the eyes.
(F) Toxic:
Toxic Chemicals
Chemical having the following values of acute toxicity and which owing to their
physical and chemical properties, are capable of producing major accident hazards:—

Sl. No. Toxicity Oral toxicity Dermal toxicity Inhalation toxicity
(mg/kg) (mg/kg) (mg/I)
1. Extremely toxic >5 <40 <0.5

2. Highly toxic >5 - 50 >40 - 200 <05 - 2.0