GA/T 1692-2020 in English

VALID

Forensic sciences—General specifications for methamphetamine urine detection kit(colloidal gold immunochromatographic assay)

Issued on:2020-03-24
Implemented on:2020-08-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $160.00
$156.00

Standard No:	GA/T 1692-2020
Document status:	VALID
Title in English:	Forensic sciences—General specifications for methamphetamine urine detection kit(colloidal gold immunochromatographic assay)
Title in Chinese:	法庭科学甲基安非他明尿液检测试剂盒（胶体金免疫层析法）通用技术要求
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2020-03-24
Implemented on:	2020-08-01
Professional Classification:	GA-Security
Related Keywords:	methamphetamine urine test kit urine detection kit methamphetamine detection detection principle adopting colloidal gold immunochromatography technology methamphetamine concentration
Related Topics:	Immunochromatography Detection kit colloidal gold Detection kit Chromatography Chromatography Immunochromatography? Chromatography Colloidal gold immunity urine test urine test Colloidal gold immunoassay Immunocolloidal gold method urine test court test urine Colloidal gold immunochromatography urine method colloidal gold chromatography non-specific Colloidal gold immunoassay Colloidal Gold Kit Technology Court Applied Technical Requirements Principle of colloidal gold immunochromatography Urobilinogen detection methodology Advantages and Disadvantages of In vitro Immunoassay Methodology Sandwich Method Principle and method of urine testing kit Urinalysis testing methods Urinalysis test methods include ga/t115-2020

本标准规定了甲基安非他明尿液检测试剂盒（胶体金免疫层析法）的术语和定义、技术要求、试验方法、检验规则、标志和使用说明书、包装、运输和贮存条件，适用于甲基安非他明尿液检测试剂盒（胶体金免疫层析法），也适用于定性检测人尿液中甲基安非他明。

Introduction

Analysis of standard technical framework

This standard establishes a complete technical specification system for the Methamphetamine Urine Test Kit. The core indicators include:

Technical dimension	Required parameters	Test method
Physical and chemical properties	Membrane width>3mm, color development time≤120s	Vernier caliper measurement + stopwatch timing
Sensitivity	Threshold≤1000ng/mL	Gradient concentration test
Specificity	21 types of interferences negative	Multi-substance cross-reaction test

Detailed explanation of key technical indicators

1. Detection principle

Adopting colloidal gold immunochromatography technology, through antigen-antibody specific binding reaction, when the methamphetamine concentration in urine exceeds the threshold, it competitively inhibits the binding of gold-labeled antibody to the test line, realizing visual interpretation.

2. Performance Verification Requirements

Accuracy Verification: 50% threshold concentration must show negative, 150% threshold must show positive
Interference Test: Covers 8 major categories of common drugs (antibiotics/analgesics/psychotropic drugs, etc.)
Stability Test: Performance is maintained for 24 hours at 4℃-37℃

Implementation and Application Recommendations

Key Points of Operation Specifications

Strictly control the interpretation of results within 3-8 minutes
Invalid results need to be retested (quality control line does not show color)
Batch difference verification should be carried out during batch testing

Quality Control Measures

Daily Quality Control	Each batch of testing must include positive and negative controls
Equipment calibration	Regularly verify the accuracy of the timer

Background of standard evolution

This standard is based on the GB/T 1.1-2009 writing rules, and the main technical breakthroughs are reflected in:

For the first time, the list of cross-reactive substances for methamphetamine detection is clarified
A quantitative evaluation system for temperature stability is established
Specification of batch difference control requirements (3 batches of verification)

More samples: DL/T 5154-2012 YD/T 3934-2021 GB 50021-2001(2009)

Sample only — not a preview of GA/T 1692-2020