Damp Heat Cyclic Test
2026-06-30Damp heat cyclic test (IEC 60068-2-30 / GB/T 2423.4, Test Db): the 24-hour 12+12 h cycle profile, variants, severity, and how it differs from steady-state damp heat — Beijing ZKGX Research.
Electromagnetic Relay Testing
2026-06-30Electromagnetic relay testing per IEC 61810-1 / GB/T 21711.1-2023: coil resistance, contact resistance at 6 V/10 mA, operate/release values, endurance and B10 — Beijing ZKGX Research lab procedures.
Inductor Testing
2026-06-29Inductor testing as LCR characterisation: L, Q, R_DC, SRF and saturation current (I_sat) under DC bias, per GB/T 40853 / IEC 62024 and GB/T 8554 / IEC 61007.
Transistor Testing
2026-06-29Transistor testing as semiconductor characterisation: BJT h_FE, leakage, breakdown and switching on a curve tracer, and MOSFET/JFET/IGBT under GB/T 4587 / IEC 60747-7/8.
Solid-State Relay (SSR) Testing
2026-06-29Solid-state relay (SSR) testing as semiconductor characterisation: on-state V_T, off-state leakage, zero-cross, endurance, EMC and isolation per GB/T 36640 / IEC 62314.
Common-Mode Rejection Ratio (CMRR) Testing
2026-06-29CMRR testing across three device classes: op-amp IC (IEC 60748), medical ECG/EEG (IEC 60601-2-25 / YY 0782), and differential probe — with the 5-setup discrepancy.
Integrated Circuit (IC) Testing
2026-06-29Integrated circuit testing across wafer (CP) and package (FT) levels, DFT (scan/BIST/IEEE 1500), 3D-IC and SoC, under GJB 597B/MIL-PRF-38535 and GB/T 17574/SJ/T
Optoelectronic Device Testing
2026-06-29Optoelectronic device testing for LED, laser diode, photodiode, image sensor and PIC: LIV/spectral/reliability per IEC 60747-5, GB/T 15651, SJ/T 11394, GB/T 33768
Electronic Component Testing
2026-06-29Electronic component testing across six categories — electrical, environmental, life, EMC, counterfeit (AS6171), FA — under MIL-STD-883/GJB 548C and GB/T 4937.
Beta-Arbutin Testing
2026-06-29Beta-arbutin testing across three matrices: cosmetic active (NMPA 4-原料, QB/T 4953, HILIC α/β resolution), UTI-drug assay, and bearberry supplement.
Ellagic Acid Testing
2026-06-29Ellagic acid testing across three matrices: food/plant RP-HPLC (hydrolysis + DMA stabilisation), cosmetic QB/T 5295-2018 (SPE), and herbal marker compound.
Candida albicans Testing
2026-06-29Candida albicans testing across three services: product release (ISO 18416, GB 4789.15, ChP), clinical detection (culture, BDG, T2Candida), and CLSI AFST.
Bisphenol A (BPA) Testing
2026-06-29BPA testing across four services: FCM migration (GB 4806, EU 2024/3190 1 µg/kg), BPA-NI bisphenol panel (BPS/BPF), urinary biomonitoring, and drinking water.
Pepsin Potency Testing
2026-06-29Pepsin potency testing across four contexts: pharmacopoeia (ChP hemoglobin/Folin/L-tyrosine), Anson A280, FCC/JECFA egg-albumen, INFOGEST, salivary biomarker.
Salicylic Acid Testing
2026-06-29Salicylic acid testing across four matrices: pharmaceutical assay (ChP free-SA ≤1.5 %), cosmetic BHA (GB/T 35954), clinical salicylate level, and food additive.
Strain Identification
2026-06-29Microbial strain identification across four methods: phenotypic, MALDI-TOF MS, 16S rRNA/ITS sequencing, and whole-genome ANI; with GB 31615.2 and GB 4789.28.
Nicotinamide Testing Explained
2026-06-29Nicotinamide (vitamin B3) testing across three matrices: food/feed/supplement content (GB 5009.89, GB 7301), clinical status (urinary NMN+2-Pyr), cosmetic assay.
Pseudomonas aeruginosa Testing
2026-06-29Pseudomonas aeruginosa testing across three matrices: water surveillance (HTM 04-01/ISO 16266), product release (GB/T 7918.4, GB 15979), and clinical AST.
Ivermectin Testing
2026-06-29Ivermectin testing across three matrices: biological-fluid LC-MS/MS (PK/TDM), veterinary residue to GB 31658.16/31650, and pharmacopoeia drug-product assay.
Acute dermal toxicity test
2026-06-26Acute dermal toxicity testing to OECD 402, OPPTS 870.1200 and GB/T 21606-2022: fixed-dose procedure, limit test, GHS Categories 1-5, and the >98% waiver criteria.
Acute Eye Irritation Test
2026-06-26Acute eye irritation test for medical devices to GB/T 16886.23-2023 / ISO 10993-23 and for chemicals to OECD 405: extract preparation, Draize scoring, and 6 in-vitro methods.
Wire Tensioner Testing Explained
2026-06-26Wire tensioner testing to DL/T 875, DL/T 2131 and GB 12167: rated load, 1.25× overload proof, 3× breaking-force safety factor, and 60-second jaw slip test.
Pressure Sensor Testing & Calibration
2026-06-26Pressure sensor testing to JJG 882 and IEC 60770: accuracy classes and MPE, test-point and cycle rules, the 1/3 reference-standard rule, and certificate contents.
Ultrasound Probe Testing
2026-06-26Ultrasound probe testing: six image-quality QA tests with pass criteria, IEC 60601-2-37 / 62353 / 62359 safety and acoustic output standards, and repair validation.
Salt spray test
2026-06-25Salt spray test (ASTM B117 / ISO 9227): NSS conditions, AASS/CASS variants, ASTM G85 annexes, coating hour benchmarks, and how results are rated.
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