Certifications 2

Reference No:
Valve Regulated Lead-acid Battery
Hitachi Chemical Energy Technology Co.,Ltd.
Page 15 / 20
Date of issuing: January 01, 2020
results in sulfate of zinc. Based on the description that
conclusion is obtained from the results mentioned above
that sulfate does not cause allergy to human, it is classified
as "Not classified".
Germ cell mutagenicity :
For in vivo, there is not any test data which the reproductive
cells and the somatic cells were used. For in vitro
mutagenicity tests, there is the positive result only in the test
system with the single indicator (chromosomal aberration
test). However, there are negative results in other indices.
Therefore, it was classified as "Classification not possible".
Carcinogenicity :
Occupational exposure of the mist of the inorganic strong
acid including sulfuric acids is classified as group 1
according to IARC, as A2 according to ACGIH, and as K
according to NTP.
Respect the evaluation of IARC and the latest NTP, it was
classified as category 1. However, sulfuric acids itself was
classified as the category 4 according to DFGOT. And,
since none of those institutions have carried out the
carcinogenic classification, it was classified as
"Classification not possible".
Reproductive toxicity :
In inhalation exposure test using rabbit and mouse in fetal
organogenesis period, it is not observed of fetotoxicity and
teratogenicity at the dose causing no maternal toxicity in
both species. And also, the effect on the reproductive organ
of both sexes is not observed in chronic toxicity test and
carcinogenicity test. Since the direct effect by
irritation/corrosive is the main toxicity, it is judged that there
is no concern that indicates the reproductive toxicity,
therefore, it was classified as "Not classified".
Specific target organ toxicity
(single exposure) :
There is the descriptions that in the inhalation exposure of
low concentration in humans, airway irritation symptoms
such as cough and breath shortness are observed and at
high concentration exposure, addition to acute effects such
as cough, breath shortness and hemoptysis shedding etc.,
permanent effects such as functional depression of lungs,
fibrosis and emphysema are observed. Additionally, there is
the description that hemorrhage and dysfunction in lungs
were observed in 8-hour inhalation exposure using guinea
pigs. Based on these descriptions, it was classified as
"Category 1 of GHS Specific target organ toxicity (single
exposure) (respiratory systems)".
Specific target organ toxicity
(repeated exposure) :
In the 28-day inhalation exposure test using rat, cell
proliferation in laryngeal mucosa is observed in guidance
value range of Category 1 of GHS Specific target organ
toxicity (repeated exposure). In the 14 to 139-day repeated