China Promulgates Mandatory Limits of Hazardous Substances in Fertilizers

China Promulgates Mandatory Limits of Hazardous Substances in FertilizersOn 17 Dec 2019, the State Administration of Market Regulation and the Standardization Administration Commission jointly issued the mandatory national standard, “GB 38400-2019 Limitation Requirements of Toxic and Harmful Substance in Fertilizers”, which will take effect on 1 Jul 2020.

7 harmful substances will be compulsorily tested for all types of commercialized fertilizers and 2 microbial tests will be additionally required for organic/microbial fertilizers. Fertilizers using solid wastes will subject to additional test/limitative requirements such as Benzopyrene, Phthalates(PAEs)and Trichloroaldehyde.

Hazardous Substances/Microbial indicators Compulsorily Tested

 

Substance/Microbial Indicator

inorganic Fertilizer(≤)

Other Fertilizer

1

Total Cadmium (≤, mg/kg)

10

3

2

Total Mercury (≤, mg/kg)

5

2

3

Total Arsenic (≤, mg/kg)

50

15

4

Total Lead (≤, mg/kg)

200

50

5

Total Chromium (≤, mg/kg)

500

150

6

Total Thallium (≤, mg/kg)

2.5

2.5

7

Biuret (≤, mg/kg)

1.5

1.5

8

Mortality of ascarid egg (≤, %)

/

95

9

number of fecal coliforms(≤, CFU)

/

100

Hazardous Substances Required for Fertilizers Made from Solid Wastes

1

Total Nickel (≤, mg/kg)

600

2

Total Cobalt (≤, mg/kg)

100

3

Total Vanandium (≤, mg/kg)

325

4

Total Stibonium (≤, mg/kg)

25

5

Benzopyrene (≤, mg/kg)

0.55

6

Total petroleum hydrocarbons (%)

0.25

7

Phthalates (≤, mg/kg)

25

8

Trichloroaldehyde

5.0

/

 Additionally, commercially fertilizer not yet developed with national standard or industrial standard need to complete the terrestrial plant growth test prior to the placing on the market.

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