GB/T 36826-2018Technical requirements for recycling and reuse of methyl bromide phtoanitary treatments (English PDF)
熏蒸剂溴甲烷循环再利用技术要求
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
September 17, 2018
Implementation date
April 1, 2019
Scope
GB/T 36826-2018 is the English-translated version of 熏蒸剂溴甲烷循环再利用技术要求.
GB/T 36826-2018 sets the technical requirements for recovering the methyl bromide left in a fumigation space after a quarantine fumigation treatment and using it again.
It covers transferring the gas from one closed fumigation space to another with ducts and fans until the two concentrations balance, and adsorbing the remaining gas on materials such as activated carbon fibre and then desorbing it.
It defines the fumigation end-point, equilibrium and desorption concentrations and the methyl bromide recovery and reuse rate, and refers to GB 434, GB/T 31752 and SN/T 3401 for the fumigant, the fumigation chamber and residue testing.
Fumigation operators and plant quarantine bodies apply it after phytosanitary fumigation. It was issued on 17 September 2018 and has applied since 1 April 2019.
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Document preview — GB/T 36826-2018
National Standard of the People's Republic of China
- ICS
- 65.020.01
- Classification
- B 16
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
1 Scope
This standard specifies the specific requirements for the recycling technology of residual fumigant in the fumigation space after quarantine fumigation treatment.
This standard applies to the recycling of fumigant residual methyl bromide after quarantine fumigation.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this document. For undated references, the latest edition (including all amendments) applies to this document.
GB 434 methyl bromide original drug
GB/T 20478 phytosanitary terminology
GB/T 31752 methyl bromide quarantine fumigation library technical specification
SN/T 3401 Procedure for testing the residual concentration of fumigants after phytosanitary fumigation
3 Terms and definitions
The following terms and definitions as defined in GB/T 20478 apply to this document.
3.1 Methyl bromide transfer
The process of quarantine fumigation of methyl bromide, the process of pouring methyl bromide from another confined space into another confined space through a duct fan, etc. The concentration of the two confined spaces is now balanced.
3.2 Methyl bromide recycling and reuse
Pass the remaining methyl bromide gas in the confined space and other closed fumigation space gas before the bromomethane quarantine fumigation treatment The body is subjected to a cyclic drug and a process of adsorbing and desorbing the remaining methyl bromide gas using an adsorbent material such as activated carbon fiber.
3.3 Fumigation endpoint concentration
After the end of the quarantine fumigation treatment, the average concentration of methyl bromide in the fumigation confined space before ventilation and toxic.
3.4 Fumigation equilibrium concentration
Methyl bromide gas in the confined space and other closed fumigation space gas recycling before the brominated methane quarantine fumigation treatment After several times, the methyl bromide in the confined space reached a balanced concentration after the drug was poured.
3.5 Fumigation desorption concentration
After the cycle is reversed, the methyl bromide gas is adsorbed by activated carbon fibers, and the concentration of the decomposed methyl bromide in the closed space is determined.
3.6 Methyl bromide recycling and reuse rate
After the end of the bromide quarantine fumigation treatment, the amount of methyl bromide after the recycle and adsorption desorption is divided by the amount of methyl bromide at the end of the fumigation
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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