GB/T 16983-1997
项目Item 分析纯 化学纯
（AR） （CP）
含量（CH2Cl2）Assay,% ≥ 99.5 99.0
色度，黑曾单位Color ≤ 10 20
密度(20℃)Density,g/mL 1.320-1.330 1.320-1.330
蒸发残渣Evaporation residue,% ≤ 0.002 0.004
酸度（以H+计）Acidity,mmol/100mg ≤ 0.002 0.004
游离氯（Cl)Free chlorine,% ≤ 0.0001 0.0002
铁(Fe)Iron,% ≤ 0.0001 0.0002
水分（H2O）Water,% ≤ 0.05 0.10
品级Grade ACS级
(ACS reagent, ≥99.5%)
外观Appearance Colorless liquid
红外光谱鉴别Infrared spectrometry Conforms
含量(CH2Cl2)Assay ≥99.5%
色度，黑曾单位COLOR TEST ≤10 APHA
蒸发残渣Residue after evaporation ≤0.002%
可滴定酸Titrable acid ≤0.0003meq/g
游离卤素Free halogens Passes test
水分Water ≤0.02%
稳定剂stabilizer 50ppm amylene
品级Grade ACS级
(ACS reagent, ≥99.8% (GC), ≤0.001% water)
含量assay ≥99.8% (GC)
游离氯free chlorine (Cl) ≤0.00002%
甲醛formaldehyde ≤0.0005%
非蒸发物non volatile matter ≤0.0005%
游离酸free acid (as HCl) ≤0.001%
水分water ≤0.001% (Karl Fischer)
氯仿chloroform ≤0.01% (GC)
四氯化碳tetrachloromethane ≤0.01% (GC)
氯chloride (Cl-): ≤0.5 ppm
cation traces by ICP Atomic emission
Al: ≤0.5 ppm
B: ≤0.02 ppm
Ba: ≤1 ppm
Ca: ≤0.5 ppm
Cd: ≤0.05 ppm
Co: ≤0.02 ppm
Cr: ≤0.02 ppm
Cu: ≤0.02 ppm
Fe: ≤0.1 ppm
Mg: ≤0.1 ppm
Mn: ≤0.02 ppm
Ni: ≤0.02 ppm
Pb: ≤0.1 ppm
Sn: ≤0.1 ppm
Zn: ≤0.1 ppm
suitability complies for reaction against H2SO4
稳定剂stabilizer ~25 mg/L amylene
品级Grade 色谱纯
(for HPLC, ≥99.9%)
含量 ≥99.9%（GC）
色度 ≤10Hazen
外观 Colorless liquid
λ H2O reference
UV absorption
λ: 235 nm ≤1.0
λ: 240 nm ≤0.10
λ: 250 nm ≤0.02
λ: 300 nm ≤0.005
λ: 400 nm ≤0.005
游离酸(HCI) ≤0.001%
游离氯 合格
不挥发物 ≤0.001%
水分 ≤0.02%
稳定剂stabilizer 50-150 ppm amylene
品级Grade 农残级
(for residue analysis , ≥99.9%)
纯度Purity ≥99.9%（GC）
七氯环氧化物Heptachlor epoxide ≤10 ng/L
色度 ≤10Hazen
外观 Colorless liquid
蒸发残渣Residue after evaporation ≤0.0001%
不挥发物 ≤0.001%
水分 ≤0.01%（KF)
稳定剂stabilizer 50-150 ppm amylene
品级Grade 多肽合成级
(grade for peptide synthesis)
含量assay ≥99.9% (GC)
水分water ≤0.01%
多肽合成之胺试验amine test Pass
品级Grade 气相色谱级
(for gas chromatography，≥99.8%)
纯度Purity (GC) ≥ 99.8 %
红外光谱鉴别Identity (IR) conforms
蒸发残渣residue on evaporation ≤ 5.0 mg/l
水分Water ≤ 0.01 %
色度Colour ≤ 10 Hazen
GC/ECD (retention range 1,2,4-trichlorobenzene to decachlorobiphenyle individual signals (lindane standard)) ≤ 3 pg/ml
suitable for residue analysis Pass
品级Grade 光谱级
(for spectroscopy, ≥99.9% (GC))
纯度Purity (GC) ≥ 99.9 %
色度Color ≤ 10 Hazen
酸度Acidity ≤ 0.0005 meq/g
碱度Alkalinity ≤ 0.0002 meq/g
Fluorescence
as quinine at 254 nm ≤ 1 ppb
as quinine at 365 nm ≤ 1 ppb
透光度Transmission
at 235 nm ≥ 10 %
at 240 nm ≥ 50 %
at 245 nm ≥ 80 %
at 248 nm ≥ 90 %
from 255 nm ≥ 98 %
Evaporation residue ≤ 0.0005 %
Water ≤ 0.01 %
稳定剂stabilizer 50ppm 2-Methyl-2-butene
品级Grade 超干级
dried (max. 0.004% H2O)
Purity (GC) ≥ 99.9 %
Identity (IR) conforms
Colour ≤ 10 Hazen
Acidity ≤ 0.0005 meq/g
Alkalinity ≤ 0.0002 meq/g
Chloroform (GC) ≤ 0.01 %
Carbon tetrachloride (GC) ≤ 0.01 %
residue on evaporation ≤ 10 mg/l
Water ≤ 0.004 %
stabilizer 50ppm 2-Methyl-2-butene
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