Certifications 2

Reference No:
Valve Regulated Lead-acid Battery
Hitachi Chemical Energy Technology Co.,Ltd.
Page 10 / 20
Date of issuing: January 01, 2020
corrosion/irritation.
Serious eye damage/eye irritation :
Since there is the description of "Probably a severe eye,
skin, and mucous membrane irritant "(HSDB (2006)), it is
considered that indicate severe irritation to eyes. Therefore,
it is classified as Category 2A of GHS Serious eye
damage/eye irritation.
Respiratory or skin sensitization :
No data.
Germ cell mutagenicity :
From the description of NTP DB (Access on February
2006);
 Heritable germ cell mutagenicity tests: None.
 Germ cell/ somatic cells in vivo mutagenicity tests:
None.
 Germ cell/ somatic cells in vivo genetic toxicity test:
None.
 Positive (strong) results of multiple indicators in in
vitro mutagenicity test: None.
It was classified as “Classification not possible”.
Carcinogenicity :
From the below classifications, it was classified as Category
2 of GHS Carcinogenicity .
 NTP (2005): R
 IARC (1987): Group 2B
 ACGIH (2001): A3
Reproductive toxicity :
Since lead is known as neurotoxic substance and
reproductive toxic substance for human, it is classified as
"Category 1A of GHS Reproductive toxicity " based on
experts' judgement.
Specific target organ toxicity
(single exposure, repeated exposure) :
For this substance, it is assumed that the classification
based on the effects of inorganic lead compounds.
As the toxicity of inorganic lead compounds for humans,
there is the description below;
"acute effects and chronic effects of inorganic lead has
been recognized almost the same symptoms. By inhalation
or ingestion of inorganic lead, it has been reported that
cause the convergence of the mouth, thirst. And also
nausea, vomiting, upper abdominal discomfort, loss of
appetite, abdominal pain, constipation and the like has
been reported as effects on the digestive organs.
Effects on hematopoiesis are typical effects of inorganic
lead, it has been observed hemoglobin synthesis inhibition
and anemia due to shortened of red blood cell life, caused
by inhibition of δ-aminolevulinic acid and heme synthesis
enzyme. Interstitial nephropathy as the effect to the
kidneys, in addition to decreasing amount of urine,
proteinuria, hematuria, urine cylinder, the proximal tubule
disorder exhibiting a Fanconi syndrome typified by diabetes